Best Email Encryption Software in 2026
Updated
28 email encryption software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
28ranked
0free plans on this page
2 Oct 2026last checked
0 of the 3 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 26 | Trustifi Outbound ShieldWeb | One bar | — | — | 1 of 6 | — | 4.9 |
| 27 | Microsoft Exchange OnlineNo platforms listed | One bar | — | — | 0 of 6 | — | 4.8 |
| 28 | GPG SuiteMac | No signal | — | — | 1 of 6 | — | 4.7 |