At the moment, we offer FlowCrypt as a Gmail browser extension, an Android App (for all email providers), and an iOS app.
We hope to eventually cover all major platforms. Get notified when we reach your platform.
Until then, below is a curated list of FlowCrypt alternatives that we think are workable.
We endorse the software listed in the table below as good solutions, with some limitations as noted. However, it may miss software if we didn’t have a chance to test it, or in case we’re not comfortable recommending it in terms of usability, security, maturity, etc:
| Platform (Email provider) | Software, Cost |
Setup, Use |
Our notes |
|---|---|---|---|
| Apple Mail (Any) |
GPG Suite , Paid (low) |
medium,easy
|
Inexpensive, well supported, and feature-full. MacOS only. |
| Outlook App (Any) |
gpg4o , Paid (medium) |
medium,medium
|
Excellent support in our experience. Pro-active approach to ensure compatibility. |
| Web, Android, iOS (Proton) |
Proton , Free + paid |
easy,easy
|
Popular and suitable if you want to change your email provider. OpenPGP support is limited but improving. |
| Thunderbird (Any) |
Enigmail , Free OSS |
hard,medium
|
Mature and battle-tested software. Your IT staff should help with setup and support. |
| Outlook Web (Outlook), Yahoo Web (Yahoo …) |
Mailvelope , Free OSS |
medium,medium
|
Battle-tested. Difficult with attachments, some incompatibility. Free, well-maintained, and works with many email providers. |
This list doesn’t attempt to be an ultimate resource for finding OpenPGP software. It’s rather a list of solutions we’ve tried and feel comfortable recommending. If you find any factual error, please inform us at human@flowcrypt.com.
Please consider the Setup and Use difficulty evaluations as our impression and nothing more. Software complexity is highly subjective. What may appear challenging to us may seem simple to you, and vice versa. Every software has some great solutions and some unintuitive bits, including our software. This makes evaluating and rating ease of use rather difficult.