Durability is one of the 5 core values of Studo. For operating system requirements, this means that we strive to support as many operating system versions as possible. We want to help you use your mobile devices for a longer period of time.
Minimum iOS version
The minimum iOS version that Studo supports is iOS 15. All iPhones released in 2015 or newer can be updated to iOS 15, starting with the iPhone 6s.
As a general advice, we recommend everyone to always stay up to date with the latest iOS version to get all the security updates from Apple.
Minimum Android version
The minimum Android version that Studo supports is Android 5.0, which was released in 2014.
However, some security features (like HTTPS via the Let's Encrypt signature without cross-signing) require Android 7.1.1, see here. Several universities and online services use Let's Encrypt without cross-signing for their web services or for their mails. Depending on the university, certain features of the app may not work as expected below Android 7.1.1. Note that Android 7.1.1 was released in 2016. To safely navigate the web, we recommend everyone update their phone to at least this Android version.
As a general advice, we recommend everyone to always stay up to date with the latest Android version to get all the Android security updates.