FlowCrypt vs Lockbin
FlowCrypt
flowcrypt.comLockbin
lockbin.comSide by side
| Figure | FlowCrypt | Lockbin |
|---|---|---|
| Price from | Free | $10/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 2 | 4 |
| Spec score · File encryption tools | 8.7 (#5) | 8.7 (#7) |
| Spec score · Email Encryption Software | 8.5 (#9) | 8.9 (#1) |
| Admin controls | Enterprise administrators can configure domain-wide settings and restrictions. | Yes |
| Attachment limit | 25 | 100 |
| Free plan | Yes | Yes |
| Gmail integration | FlowCrypt integrates with Gmail and works from the Gmail interface. | No |
| Systems integration | FlowCrypt can integrate with public key servers, HSMs, and internal systems. | Lockbin works alongside Google Workspace and Microsoft 365, with no plugin or extension required. |
| Message expiry | Users can choose when password-protected messages expire. | Yes |
| Outlook integration | Yes | No |
| Recipient verification | password | password |
| Secure delivery | link | link |
| Enterprise support | Enterprise includes an SLA covering availability and response times for fixes and patches. | Current users can email [email protected] for immediate assistance, and professional-tier users can reach support by phone through their account. |
Plans
Lockbin
- FreeFree
- Premium$10 a month
- Multi-User Enterprise$10 a month
- FreePrice not published
In their own words
FlowCrypt
FlowCrypt is an email encryption service that lets users send encrypted messages to OpenPGP users and password-protected messages to other recipients. Recipients can reply securely without installing a plugin. It is offered as a Chrome extension, with other platforms and a mobile application also listed. Gmail and Outlook integration are listed, along with message expiry and password-based recipient verification. The free plan is for fewer than 100 users and lists a 5 MB attachment threshold, while product details say free users can add attachments up to 25 MB. Enterprise supports domains with more than 100 users, and administrators can set domain-wide controls and enforce rules for passphrases, keys, and signing. Enterprise also supports SSO through Google, OIDC providers, and delegated identity providers, and can connect with public key servers, HSMs, and internal systems. Enterprise commercial-use pricing requires contacting FlowCrypt. Its enterprise data processing agreement is described as GDPR-compliant, and enterprise support includes an SLA for availability and response times for fixes and patches.
Lockbin
Lockbin is a web application for sending private email messages and files. Recipients can open a message using a unique URL and password; passwordless secure links are also available for known recipients. Messages use TLS in transit and FIPS 140-2 verified AES-256 encryption at rest. Decryption keys are held by the sender and recipient rather than stored in plaintext on Lockbin servers. It works in Chrome, Firefox, Safari, or Edge without a download or installation, and is listed for Linux, macOS, web, and Windows. Lockbin works alongside Google Workspace and Microsoft 365 without a plugin or extension. Premium users can create file-drop links or secure forms to receive files without requiring an account or password. The free plan covers one user, 25 MB attachments, and six months of inbox storage; the site also advertises 10 free messages with no credit card required. Premium costs $10 per user per month. Uncollected messages are destroyed after six months, and read files not marked for deletion are removed within 24 hours.