Öffi vs Caliopen
A side-by-side look at Öffi and Caliopen. For an in-depth review of either product, follow the links below.
Öffi
Travel & Location
Öffi is a free and open-source public transport app for Android and iOS. It allows users to search for routes, see departure times, and navigate using public transportation in cities around the world.
transporttransitschedulesnavigation
Caliopen
Social & Communications
Caliopen is an open source and privacy-focused email and communications client. It allows users to send encrypted emails and messages without relying on large tech companies to handle their private data.
opensourceprivacyencryptionemailmessaging
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