Proton Mail for Business vs Titan
In short: Proton Mail for Business wins on privacy, Titan wins on price, and they tie on features. The full comparison is below, last checked 25 October 2026.
Which should you choose?
- Proton Mail for Business is the better pick if you want end-to-end encryption built in; your email to stay in Switzerland; and more space for your mail: 15 GB.
- Choose Titan if you want the lower price (About $1.99 per mailbox a month (sold through resellers)) and freedom to use the mail app you already like.
| Feature | Proton Mail for Business | Titan |
|---|---|---|
| Overall | 4.0 | 2.5 |
| Privacy | 4.5 | 0.5 |
| Price | 2.5 | 4.5 |
| Features | 4.5 | 4.5 |
| Cheapest plan | Mail Essentials $6.99 per user a month | Starter About $1.99 per mailbox a month (sold through resellers) |
| Free plan | No | No |
| Storage | 15 GB | 10 GB |
| Your own domain | ✓ 3 | ✓ Yes |
| End-to-end encryption | ✓ Built in | No |
| Company based in | Switzerland | India / United States |
| Your data is kept in | Switzerland | Not confirmed |
| Founded | 2014 | 2020 |
| Free trial | 30-day refund | Unknown |
| Funded by advertising | No | No |
| Works in any mail app | With Proton Bridge on paid plans | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | No | No |
| White label | No | ✓ Yes |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
Where they differ
- Cheapest plans: Proton Mail for Business Mail Essentials, $6.99 per user a month. Titan Starter, About $1.99 per mailbox a month (sold through resellers).
- Space: Proton Mail for Business gives 15 GB of storage, Titan 10 GB of storage.
- Data location: Switzerland for Proton Mail for Business, Not confirmed for Titan.
- The companies sit under different laws: Proton Mail for Business in Switzerland, Titan in India / United States.
- On encryption, Proton Mail for Business encrypts mail end to end, whereas Titan doesn't encrypt mail end to end.
- Mail apps: Proton Mail for Business works in other mail apps through Proton Bridge on paid plans; Titan works in any mail app over IMAP.
Common questions
Is Proton Mail for Business more private than Titan?
Proton Mail for Business scores 4.5 out of 5 for privacy and Titan 0.5. Proton Mail for Business gives you end-to-end encryption built in, your email to stay in Switzerland and open-source apps anyone can check.
Is Proton Mail for Business cheaper than Titan?
Titan is cheaper. Its Starter plan is About $1.99 per mailbox a month (sold through resellers), against $6.99 per user a month for Proton Mail for Business's Mail Essentials. Check the renewal price before you pay, as some first-year prices go up.
Can I use my own domain with Proton Mail for Business or Titan?
Yes, both do. Proton Mail for Business: 3 domains on its cheapest plan that allows one. Titan: Yes.
Where is my email stored with Proton Mail for Business and Titan?
Proton Mail for Business keeps it in Switzerland. Titan keeps it in Not confirmed.
Can I use Proton Mail for Business and Titan in Apple Mail or Outlook?
Proton Mail for Business works in other mail apps through Proton Bridge on paid plans. Titan works in any mail app over IMAP.
Prices and the latest news
No price changes for either since 22 October 2026. I check regularly and add any change here with its date.
The latest headlines: Proton Mail for Business news · Titan news.
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Switching between them
Moving between any two providers works the same way. Pick your two providers for the steps.