For a simple and secure way to use StartMail on the go, you can access your StartMail account directly from your phone using the StartMail mobile app. No IMAP setup is required.
We have just released the app in the Google Play store and we're waiting on the iOS version to be approved by the Apple Team.
Information about the App vs. Webmail functionality can be found here.
Note: We do not currently plan to offer the Android APK as a direct download from the StartMail website. However, the app will likely become available in the near future through alternative app stores for de-Googled phones, such as Aurora Store (GrapheneOS) and App Lounge (/e/OS), as well as third-party APK repositories such as APKMirror.