Proton Mail vs Outlook
What each developer declares on Google Play, side by side. Up to 3 apps at a time; categories none of them declares are hidden.
| Data category | Proton Maildeclares 5 collected, 0 shared | Outlookdeclares 10 collected, 1 shared |
|---|---|---|
| Personal info | Collected | Collected |
| Messages | Not declared | Collected |
| Photos & videos | Not declared | Collected |
| Audio | Not declared | Collected |
| Files & docs | Not declared | Collected |
| Calendar | Not declared | Collected |
| Contacts | Collected | Collected |
| App activity | Collected | Collected |
| App info & performance | Collected | Collected |
| Device or other IDs | Collected | Collected & shared |
| Declares data encrypted in transit | Yes | Yes |
| Declares you can request deletion | Yes | Yes |
| Source | Play listingVerified 2026-08-07 | Play listingVerified 2026-08-07 |