LastPass alternative: Backbuild Secrets vs LastPass
LastPass is a dedicated consumer and business password manager with native mobile apps, browser autofill, dark web monitoring, and a business admin tier. Backbuild Secrets is the zero-knowledge, post-quantum vault inside the Backbuild workspace, with free role-based access and audit on every plan, grant-based vault access for automations, an infrastructure-secrets command-line interface, a public REST API, and a native Model Context Protocol surface. LastPass still leads on native mobile apps and browser autofill you can install now, passkeys as a working authenticator, dark web monitoring on every plan, and its long consumer track record.
The short answer
Both are zero-knowledge password managers; the split is price, post-quantum encryption, free governance, automation, and platform maturity. Choose Backbuild Secrets if you want a manager that is free on every plan with no one-device limit, encrypts your vault data with post-quantum cryptography at rest, gives you role-based sharing with an audit log at no extra cost, lets automations and AI agents use secrets they never see in plaintext, and lives inside a workspace spanning Mail, Chat, Meetings, Calendar, Contacts, Docs, Sheets, Slides, Diagrams, and Photos, with dedicated photo, video, training video, audio, and music editors, Files, Backbuild Finances, and a built-in help desk. Choose LastPass if you need polished native mobile apps and browser autofill today, passkeys you can save and sign in with, dark web monitoring on every plan, emergency access, a family plan, and a long consumer track record.
Backbuild Secrets vs LastPass: feature by feature
LastPass has a free tier limited to one device type and paid plans billed annually. Prices below are quoted from LastPass's own pricing page, observed 2026-07-18. The highlighted column is Backbuild Secrets.
| Backbuild Secrets A zero-knowledge, post-quantum manager in the free workspace Free on every plan, including sharing, roles, and audit logging; part of the wider workspace Get Started Free | LastPass A mature consumer and business password manager Free (one device type); Premium $3/mo; Families $4/mo; Teams $4/user/mo; Business $7/user/mo, all billed annually | |
|---|---|---|
| Price and access | ||
| Free tier that syncs across all your devices | Free, one device type only | |
| Starting price for one person on all devices | Free | $3/mo, billed annually |
| Team price with roles and audit | Included free | $7/user/mo (Business) |
| Family plan for several people | Shared org, free | Families $4/mo, 6 people |
| Encryption and privacy | ||
| Zero-knowledge (the provider cannot read your vault) | ||
| Post-quantum encryption of vault data at rest | AES-256, not post-quantum | |
| Memory-hard master-password hardening (Argon2id) | PBKDF2 | |
| All vault fields encrypted, including website URLs | URLs were unencrypted | |
| No server-side master-password reset | ||
| Items and fields | ||
| Logins, passwords, and secure notes | ||
| Full item set (cards, identities, SSH keys, and more) | 23 categories plus custom | |
| Custom sections and typed custom fields | ||
| Built-in TOTP for two-factor codes | In the vault | LastPass Authenticator app |
| Passkeys as a working authenticator (save and sign in) | Reference record only | |
| File attachments, tags, and favorites | ||
| Version history you can restore | Last 50 versions | |
| Generator and hygiene | ||
| Password and passphrase generator | ||
| Compromised-password (breach) check | ||
| Weak and reused password flags | Security dashboard | |
| Dark web monitoring of your account emails | Compromised, weak, reused | |
| Sharing and governance | ||
| Share a vault with your team | ||
| Role-based access control | Every plan | Business tier |
| Tamper-evident audit log | Every plan | Business tier |
| Single sign-on to unlock | Every plan | Business tier |
| SCIM user provisioning Soon | Business tier | |
| Directory integration (Entra ID, Google, Okta) | Single sign-on | Business tier |
| Per-organization data isolation | ||
| Automation, API, and AI agents | ||
| Public REST API for the whole vault | ||
| Native Model Context Protocol tools for AI agents | ||
| AI agent uses secrets without ever seeing plaintext | ||
| Grant-based access for automations and containers (owner consent, step-up, single-use references) | ||
| Developers and infrastructure | ||
| Command-line interface | lastpass-cli (lpass) | |
| Inject secrets into a process or CI at launch | Via the CLI in scripts | |
| SSH agent and Git commit signing | Stores SSH keys, no agent | |
| Import from LastPass and other managers | LastPass, 1Password, Bitwarden, Dashlane, KeePass | |
| Autofill, apps, and platforms | ||
| Browser extension autofill you can install now Soon | ||
| Native mobile apps (iOS, Android) Soon | ||
| System autofill and biometric unlock on mobile | ||
| Desktop apps | Windows, macOS | Windows, macOS, Linux |
| Web app | ||
| Emergency access for a trusted contact | ||
| Travel mode (hide vaults when crossing a border) | ||
| Workspace apps | ||
| Email at your own domain (Backbuild Mail) | ||
| Team chat (Backbuild Chat) Soon | ||
| Meetings (Backbuild Meet) Soon | ||
| Calendar (Backbuild Calendar) | ||
| Contacts (Backbuild Contacts) | ||
| Documents (Backbuild Docs) | ||
| Spreadsheets (Backbuild Sheets) | ||
| Presentations (Backbuild Slides) | ||
| Diagrams (Backbuild Diagrams) Soon | ||
| Photos (Backbuild Photos) | ||
| Photo editor | ||
| Video editor Soon | ||
| Training video editor (Backbuild Studio) | ||
| Audio editor Soon | ||
| Music editor Soon | ||
| Files | ||
| Accounting and invoicing (Backbuild Finances) | ||
| Help desk and support tickets | ||
| Trust and maturity | ||
| Long consumer track record and large installed base | ||
| Published third-party security assessments | Built to meet, not yet audited | |
A cross means the tool does not offer the feature today. "Soon" marks a capability on the Backbuild roadmap. LastPass prices, plans, and feature availability are quoted from LastPass pricing and its features documentation, observed 2026-07-18.
Same guarantee, different bets
LastPass and Backbuild Secrets agree on the most important thing: both are zero-knowledge, so the provider stores only ciphertext and cannot read a vault. From there they make different bets. LastPass has built one of the most familiar cross-platform experiences in the category: native mobile apps with system autofill, browser extensions on every browser, passkeys, dark web monitoring on every plan, and a long consumer history. Backbuild Secrets bets on being free for everyone with no device limit, post-quantum at rest, governed with roles and audit at no extra cost, drivable by automations and AI agents that never touch a plaintext secret, and part of a whole workspace. The two suit different people.
Where LastPass leads
LastPass is one of the best-known managers in the category, and several of its strengths are things Backbuild Secrets does not match today.
Mobile apps and autofill you can use now
LastPass has mature iOS and Android apps with system autofill and biometric unlock, and browser extensions you install in one click. Backbuild Secrets runs on the web and a Windows and macOS desktop app; its browser extension and native mobile app are in development with store distribution rolling out, and mobile system autofill is not available yet. For daily use on a phone, LastPass leads.
Passkeys, emergency access, and travel mode
LastPass can save passkeys and sign you in with them, grant a trusted contact emergency access to your vault, and hide selected vaults with a travel mode. Backbuild Secrets stores a passkey as a reference record, not a working authenticator, and does not offer emergency access or travel mode today. For these convenience features, LastPass is ahead.
Dark web monitoring on every plan
Backbuild Secrets flags compromised, weak, and reused passwords. LastPass adds dark web monitoring of your account emails on every plan, alerting you when an address appears in a known breach corpus. For the broader monitoring surface, LastPass leads.
A long consumer track record and a family plan
LastPass has been used by consumers for well over a decade, carries a large installed base and a familiar interface, and offers a six-person family plan with a family manager dashboard. Backbuild Secrets is newer, and its shared-org model is a workspace rather than a consumer family product. If a long history and a packaged family plan matter, LastPass leads.
Reading the 2022 incident and what it means for a switcher
Much of the current search demand for a LastPass alternative traces to the 2022 security incident, in which an attacker obtained a backup copy of customer vault data. The encrypted fields remained encrypted, but some metadata, including website URLs, was stored unencrypted and was therefore exposed. Later reporting has linked the stolen vaults to substantial cryptocurrency thefts, on the reasoning that older accounts protected by low iteration counts and weak master passwords could be attacked offline once the ciphertext left LastPass's control.
The useful lesson for someone comparing managers is about the encryption model rather than the headline. A zero-knowledge design means the provider cannot read a vault, and both LastPass and Backbuild Secrets are zero-knowledge. The residual risk that the incident exposed is offline cracking of a stolen ciphertext, which depends on two things: how the key is derived from the master password, and how strong that master password is. LastPass derives keys with PBKDF2, and the accounts most at risk were those created before its iteration count was raised. Backbuild Secrets derives keys on your device with memory-hard Argon2id, enforces a strong master-password policy, and wraps the vault key with hybrid post-quantum cryptography, so a stolen ciphertext is harder to attack offline today and stays closed to a future quantum computer. This is a difference in the key derivation and master-password strength behind the same zero-knowledge promise, not a claim that one vendor can read vaults and the other cannot.
Common LastPass frustrations and how Backbuild Secrets addresses them
A free tier limited to one device type
Since 2021, the LastPass free tier works on only one device type at a time, computers or mobile, not both, so real cross-device use requires a paid plan. Backbuild Secrets is free on every plan and syncs across the web and desktop with no device restriction.
Post-quantum protection of stored vault data
LastPass encrypts vaults with AES-256 and derives keys with PBKDF2, which is not post-quantum. Backbuild Secrets wraps your vault key with hybrid post-quantum cryptography (X25519 with ML-KEM-768) today, so harvested ciphertext stays closed to a quantum adversary.
Governance locked behind a business tier
With LastPass, role-based access control, single sign-on, and an admin audit log come with the paid Business plan. Backbuild gives you owner, manager, and member roles, single sign-on, and a tamper-evident audit log on every plan, including Free, so a small team gets governance without a per-seat bill.
Secrets sitting apart from everything else
A password manager is usually a separate app. Backbuild Secrets is part of an all-in-one workspace, and it holds infrastructure secrets you inject into apps from the CLI too, so human passwords and service secrets live in one governed place.
Secrets for automations, containers, and AI agents
This is where the two products diverge the most. LastPass is a password manager for people: it fills logins in a browser and on a phone, and it does not offer a machine-secrets surface for automations or AI agents. Backbuild Secrets treats non-human callers as first-class. The goal is the same one a developer wants: stop embedding long-lived credentials in code and configuration, and hand a short-lived, scoped secret to exactly the thing that needs it. Backbuild Secrets does this with a grant ceremony instead of a bare token: a machine or on-demand container presents a code, the owner confirms it in an unlocked, step-up-verified session, and the grant is bound to that machine's key, the specific vault, the vault's current key generation, and an expiry. When a secret is actually needed, its value is substituted only in trusted code at the execution boundary and scrubbed from anything returned to the model, its results, and the logs, so the AI and the automation script never receive a plaintext value.
The programmable surface is where Backbuild reaches beyond a consumer manager. The whole Backbuild vault is drivable over a public REST API, and a native Model Context Protocol server exposes a safe subset to AI agents. Any language can call the REST API or the secrets command-line interface to inject secrets into a process at launch. The material difference is the plaintext boundary: no tool exists that returns a secret value, so an agent can create, organize, and use credentials and still never be a place a secret can leak from.
Which tool wins, by use case
An individual or family wanting a free password manager
Most people searching for a LastPass alternative want a manager that syncs everywhere without a subscription, because the LastPass free tier works on only one device type. Backbuild Secrets is free on every plan, zero-knowledge, and post-quantum at rest, with a full item set, TOTP, a generator, and import from LastPass and other managers. The counterweight is where you use it: LastPass has mature mobile apps and autofill you can install today, plus emergency access and a family plan, and Backbuild's extension and mobile app are still rolling out to the stores. If you live in a browser on a computer, Backbuild is the better free choice; if your passwords live on your phone, LastPass is stronger right now.
A small business team that needs governed sharing on a budget
A team sharing logins needs roles, an audit trail, and per-tenant isolation, not just a shared folder. With LastPass those controls live on the Business plan at $7 per user a month. Backbuild gives a team owner, manager, and member roles, single sign-on, a tamper-evident audit log, and per-organization isolation on every plan, free, and it sits in the same all-in-one workspace as the rest of the team's tools. For a small team watching cost, the difference is material.
Security-conscious users who want post-quantum and zero-knowledge
For someone whose threat model includes harvest-now, decrypt-later, the question is what is post-quantum today. LastPass encrypts vaults with AES-256 and derives keys with PBKDF2, which is strong against classical attackers but not post-quantum. Backbuild Secrets wraps the vault key that protects your items with hybrid post-quantum cryptography (X25519 with ML-KEM-768) at rest, derives your keys with Argon2id on your device, and keeps private keys inside a sealed module. The counterweight is maturity: LastPass carries years of published assessments and a long track record, alongside the history of the 2022 incident, while Backbuild is newer and not yet independently audited.
Developers managing infrastructure and service secrets
Developers want to stop scattering secrets across .env files, and here the two tools are not the same kind of product. LastPass ships a command-line tool that can read personal vault items for scripts, but it has no machine-grant authorization surface, no public REST API for the vault, and no agent tools. Backbuild's secrets CLI authorizes a specific machine with a fingerprint ceremony and injects secrets into a process at launch, its REST API and Model Context Protocol tools drive the whole vault, and its grant model gives an automation an owner-consented, step-up-verified, expiring credential rather than a static token, with the plaintext substituted only at the execution boundary. For infrastructure and service secrets, this is the categorical difference.
All-in-one workspace seekers
For someone who would rather not run a separate app for passwords, Backbuild Secrets is part of one free workspace spanning Mail at your own domain, Chat, Meetings, Calendar, Contacts, real-time Docs, Sheets, Slides, Diagrams, and Photos, with dedicated photo, video, training video, audio, and music editors, Files, Backbuild Finances, and a built-in help desk, and it holds infrastructure secrets alongside human passwords. LastPass is a focused password manager, but it is a standalone product you add on top of your other tools.
How the two compare for each part of a buying decision
Everyday use on your phone and browser
The day-to-day experience turns on two things: whether the manager fills passwords where you actually work, and what it costs to use everywhere. LastPass is the stronger daily driver on mobile today, with native iOS and Android apps, system autofill, and biometric unlock, plus one-click browser extensions on every major browser. That reach, and its long familiarity, is the single most common reason a person stays with LastPass, and it is a genuine advantage.
Backbuild Secrets runs in the web app and a Windows and macOS desktop app, with a browser extension and native mobile app rolling out to the stores. On a computer, the vault is fully usable today; on a phone, autofill is not there yet. The offsetting draw is cost and privacy: the vault is free on every plan and syncs across devices with no one-device limit, unlike the LastPass free tier, and it is zero-knowledge and post-quantum at rest, with the same item types, TOTP, generator, and import a daily user expects. The bottom line for this evaluation is a split by device: a browser-and-desktop user gets a complete, free manager from Backbuild, while a phone-first user is better served by LastPass until Backbuild's mobile client ships.
Rolling secrets out across a team
A team rollout is decided by shared access with control, the migration path, and the per-seat bill. On controls, Backbuild includes what LastPass reserves for its paid Business tier: owner, manager, and member roles, single sign-on to unlock, a tamper-evident audit log, and per-organization isolation on every plan, so a small team gets governance without upgrading. With LastPass, role-based access, single sign-on, directory integration, and admin reporting sit on the Business plan at $7 per user a month.
The counterweight is operational maturity across a large workforce. LastPass has mature clients on every device, an established admin console with policy controls, directory integration, and a long support history, and its import path is well trodden. Backbuild imports from LastPass, 1Password, Bitwarden, Dashlane, and KeePass, but it is newer, and mobile clients are not yet in the stores. The bottom line: for a cost-conscious team that lives on computers and wants governance included, Backbuild is the stronger fit; for a large, mobile-heavy workforce that needs proven clients on every device and a mature admin console now, LastPass is the safer rollout today.
Security and compliance evaluation
A security review looks at the encryption model, key handling, tenant isolation, the audit trail, and how non-human identities get credentials. Both managers are zero-knowledge, so neither provider can read a vault. They diverge on two axes that dominate a security review. First, cryptography at rest: Backbuild derives keys with Argon2id on the device and wraps the vault key with hybrid X25519 and ML-KEM-768, a post-quantum mechanism applied to stored data, while LastPass uses AES-256 with PBKDF2 key derivation, which is not post-quantum, and the 2022 incident showed the residual risk of offline cracking against low-iteration, weak-master-password accounts.
Second, machine and agent access, which is where a modern review increasingly focuses. Backbuild gives automations an owner-consented, step-up-verified, expiring grant, injects the value only at the execution boundary, and scrubs it from logs and model context, and exposes no tool that returns a plaintext value. LastPass does not offer a machine-secrets surface, so this class of workflow is not part of its model. The genuine gap on the Backbuild side is external validation: LastPass carries years of published assessments and a long track record, while Backbuild is built to meet SOC 2, ISO 27001, and PCI DSS but does not yet carry published independent audits, and it does not offer SCIM provisioning today. The bottom line: for the strongest cryptography at rest and the tightest agent-secret boundary, Backbuild leads on the model; for an externally validated track record and mature enterprise provisioning, LastPass leads on evidence.
The economics for a finance buyer
The cost question is total spend across seats and time, and the risk of forced upgrades. LastPass has a free tier, but it is limited to one device type, so any practical use is a recurring per-seat subscription, from $3 a month for one person to $7 per user a month for the Business plan that carries roles and audit. Backbuild Secrets is free on every plan, including roles and audit, and syncs across devices, so the direct line-item cost of the vault is zero.
The larger economic point for a buyer is consolidation. Because Backbuild Secrets lives inside the same all-in-one workspace as the rest of a company's day-to-day tools, adopting it can retire several separate subscriptions rather than adding one, which changes the comparison from a password-manager line item to a workspace decision. The offsetting consideration is vendor track record: LastPass is an established, single-purpose vendor with a long billing and support history, which some finance teams count as lower switching risk. The bottom line: on direct and consolidated cost, Backbuild is materially cheaper; a buyer paying for vendor familiarity and a proven single-purpose tool may still prefer LastPass.
Strategic fit and vendor risk
At the sponsor level the decision is about direction and durable risk, not individual features. LastPass offers a familiar, widely adopted vendor with a long consumer record and wide platform coverage, which is a low-friction choice for an organization that wants a well-known dedicated manager and nothing more. Its trade-offs are its narrow scope, the reputational weight of the 2022 incident, and a free tier that pushes real use onto a subscription.
Backbuild consolidates the password vault and the rest of an organization's core tools into one governed, post-quantum workspace, with automation and AI-agent access built into the vault. The strategic upside is fewer vendors, forward-looking cryptography, and an AI-native posture; the strategic risk is that Backbuild is newer, not yet independently audited, and still shipping its mobile clients. The bottom line: an organization optimizing for a single familiar point tool leans LastPass, while one consolidating vendors and prioritizing post-quantum and agent-safe secrets leans Backbuild.
Frequently asked questions
Is there a free alternative to LastPass?
Yes. Backbuild Secrets is a full password and secrets manager that is free on every Backbuild plan, including the Free plan, with no card required, and it works across the web and desktop without limiting you to one device type. LastPass has a free tier, but since 2021 it works on only one device type at a time, either computers or mobile, not both, so cross-device use requires a paid plan that starts at 3 US dollars a month billed annually. Backbuild Secrets is the better fit when you want a genuinely free manager that syncs everywhere and the workspace it lives in. LastPass is the better fit when you need its mature native mobile apps and browser autofill today.
Is LastPass still safe to use after the 2022 breach?
LastPass remains a zero-knowledge design, so the provider stores only encrypted vault data and cannot read it. In 2022 an attacker obtained a backup copy of that encrypted vault data along with some unencrypted metadata such as website URLs, and later reporting has linked the stolen vaults to cryptocurrency thefts, because older accounts with low iteration counts and weak master passwords could be attacked offline once the ciphertext was in the hands of an attacker. The relevant contrast for a switcher is the encryption model. Backbuild Secrets is also zero-knowledge, but it derives keys on your device with memory-hard Argon2id, enforces a strong master-password policy, and wraps the vault key with post-quantum cryptography, so harvested ciphertext is harder to attack offline and stays closed to a future quantum computer. Both providers store only ciphertext; the difference is in the key derivation and the strength of the master password behind it.
Is Backbuild Secrets really post-quantum, and is LastPass?
Backbuild Secrets encrypts your vault data with hybrid post-quantum cryptography: the vault key that protects your items is wrapped with X25519 combined with ML-KEM-768, the mechanism standardized by NIST as FIPS 203, so ciphertext harvested today cannot be opened by a future quantum computer. LastPass encrypts vaults with AES-256 and derives keys with PBKDF2, which is strong against classical attackers but is not post-quantum. If harvest-now, decrypt-later is part of your threat model, Backbuild protects the stored data against it today.
Can I import my LastPass data into Backbuild Secrets?
Yes. Backbuild Secrets reads the CSV that LastPass exports, detecting it by its column signature, mapping your LastPass folders to tags, and importing your logins and secure notes, with the structured fields of a secure note kept alongside it so nothing is lost. It also imports exports from 1Password, Bitwarden, Dashlane, and KeePass, along with the CSV that browsers produce, and because the vault is zero-knowledge, the import and the encryption that follows happen on your device.
Does Backbuild Secrets have mobile apps and browser autofill like LastPass?
Not yet in the app stores, and this is where LastPass leads. LastPass has mature iOS and Android apps with system autofill and biometric unlock, and browser extensions you can install now on every major browser. Backbuild Secrets runs in the web app and the Windows and macOS desktop app; the Backbuild browser extension that adds autofill is on its way to the Chrome Web Store, Firefox Add-ons, and the App Store, and the native mobile app is in development with store distribution rolling out. Backbuild does not offer mobile system autofill or biometric unlock today. If autofill on your phone is your first requirement, LastPass is the stronger choice right now.
Can an AI agent or automation use Backbuild Secrets without seeing my passwords?
Yes, and this is a categorical difference from storing an API key in a configuration file. The whole vault is drivable over a public REST API and native Model Context Protocol tools, but no tool ever returns a plaintext value, because none exists. An automation or on-demand container gets access through a machine grant: the machine presents a code, the owner confirms it in an unlocked, step-up-verified session, and the grant is bound to that machine, that vault, and an expiry. When a secret is actually needed, its real value is substituted only in trusted code at the execution boundary and scrubbed from anything returned to the model, its results, and the logs. LastPass does not offer an equivalent machine-secrets surface for automations.
Is Backbuild Secrets independently audited like LastPass?
LastPass is an established vendor with a long track record and published third-party assessments, and it also carries the history of the 2022 incident. Backbuild Secrets is newer and built to meet frameworks like SOC 2, ISO 27001, and PCI DSS, but it does not yet carry years of published independent audits. If an established, externally audited track record is a hard requirement, LastPass has the longer paper trail; if a forward-looking encryption model and free governance matter more, Backbuild leads on the model.
Try Backbuild Secrets free
A zero-knowledge, post-quantum password and secrets manager with vaults, role-based sharing, an audit log, a full item set, TOTP, a generator, breach checks, import from LastPass, a public REST API, and grant-based access for automations, free on every plan inside an all-in-one workspace. If your first requirement is polished native mobile apps, browser autofill you can install today, passkeys as a working authenticator, dark web monitoring on every plan, or a long consumer track record, LastPass is the stronger choice right now.
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