
Proton Mail
Free plan; Mail Plus about $4/month billed yearly
Swiss encrypted email, with a free plan and apps on every platform.
Pick it if you want a free plan to start and you want open source.
Independent, privacy-focused email with calendar, contacts and files. If it is not working for you, here are 7 apps that do the same job, closest match first.
Built from official pricing pages and app store listings, prices checked 2026-11-01. Not paid to be here.| App | Price | Platforms | Pick it if |
|---|---|---|---|
| Fastmail (the app you have) | From about $5/month paid yearly | Everywhere | - |
| HEY Email | About $99/year after a 30-day trial | Everywhere | you want a close match |
| Proton Mail | Free plan | Everywhere | you want a free plan to start |
| Zoho Mail | Free for up to 5 users in some regions | Everywhere | you want a free plan to start |
| Gmail | Free for personal use | iPhone, Android, Web | you want it free |
| Tuta | Free | Everywhere | you want a free plan to start |
| MySudo | Free download | iPhone, Android | you want a free plan to start |
| Yandex Mail | Free download | iPhone, Android | you want a free plan to start |


Opinionated email that screens new senders and blocks trackers.


Swiss encrypted email, with a free plan and apps on every platform.
Pick it if you want a free plan to start and you want open source.


Business email for your own domain, with calendar and admin controls.
Pick it if you want a free plan to start.


Google's free email, with fast search, strong spam filtering and Gemini AI.
Pick it if you want it free and you want something simpler.
Encrypted email, calendar and contacts from Germany, with a free plan and open-source apps on every platform.
Pick it if you want a free plan to start and you want open source.
Privacy app with second phone numbers, email and private chat.
Pick it if you want a free plan to start.
Free email from Yandex.
Pick it if you want a free plan to start.
We matched these apps to Fastmail by what they are for, who they suit and where they run, using our research on each app's official website and app store listing. We have not tested them hands-on for this page. Check the price on each app's own site before you buy.