THE PRODUCT AND ITS DEVELOPER
A place for your study material.
Otriva is developed by Leon Karim Valentin. A cabinet, subjects and folders give your materials a home. The otter helps with unclear passages; with “Quiz me”, keep studying in your own notes on iPad and iPhone.
For iPad and iPhone with iPadOS 26 or iOS 26 or later. Ages 16+. App in English and German.
Download Otriva for freeDeveloped by Leon Karim Valentin
Leon is a product developer working across software, AI, and embedded systems. Otriva brings that product work to a notebook on iPad with an iPhone companion.
What Otriva does today
Write with Apple Pencil, annotate PDFs, organize material into subjects and topics, circle passages for AI explanations, translate and understand German passages, and study in your own notes with “Quiz me”. The notebook is free; AI is optional. Otriva Plus expands the answer allowance.
Otriva is available for iPad and iPhone on the App Store. The app is in English and German. On iPhone, view your timetable, read notes synced through iCloud, and use “Quiz me”. Writing stays on iPad.
Contact and support
The German help pages explain features, Free and Plus, and data management. Contact details are in the legal notice. See the privacy policy for data processing information.