Proton Mail Unveils Major Mobile App Overhaul for Users

26 Sep 2025

Encrypted email provider Proton has introduced the most significant update in its history with a comprehensive rebuild of the Proton Mail mobile apps, designed for both Android and iOS platforms. This major upgrade emphasizes speed enhancements, consistent performance, and an updated interface aimed at alleviating scaling challenges arising from Proton's expanding user base.

A Year of Rethinking Email Functionality

Over the past year, Proton's development team has diligently reimagined how users interact with email on their phones. The new apps aim to simplify navigation through a cleaner layout and expedite frequent tasks, such as composing messages. However, the core privacy principles that define Proton Mail remain steadfastly intact.

Performance improvements are a highlight of this update. Users now experience inbox activities like scrolling, archiving, and replying at speeds roughly twice as fast as prior versions, bringing a more seamless experience to the forefront.

Expanded Features and Platform Uniformity

The new apps bring a critical feature to users: a fully functional offline mode. This enhancement allows reading, drafting, and organizing emails even without an internet connection, a significant step forward for user accessibility and productivity. Proton Mail has also achieved feature parity across Android and iOS, ensuring users on both platforms can access the same functionalities.

  • Snooze and message scheduling features, long requested by users, are now available on Android.
  • The architecture revolves around a shared code base, with approximately 80% of the new apps' logic written in Rust, synchronizing functionalities seamlessly across platforms.

While this release centers on email solutions, Proton hints at future developments, suggesting that the new architecture will bolster advancements in other services such as Proton Calendar.

Strategic Rollout

The deployment of this significant update is being carried out in a measured manner. Android users can anticipate automatic updates in the coming days, while iOS users are encouraged to download the update now via the App Store.

As Proton Mail continues to evolve, these enhancements mark a significant milestone in its commitment to providing user-friendly, secure email solutions that align with the modern demands of communication technology.

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