Spark Mail vs Proton Mail
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 | Spark Maildeclares 6 collected, 4 shared | Proton Maildeclares 5 collected, 0 shared |
|---|---|---|
| Personal info | Collected | Collected |
| Financial info | Collected & shared | Not declared |
| Messages | Collected | Not declared |
| Contacts | Not declared | Collected |
| App activity | Collected & shared | Collected |
| App info & performance | Collected & shared | Collected |
| Device or other IDs | Collected & shared | Collected |
| 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 |