Öffi vs Red Pen
A side-by-side look at Öffi and Red Pen. 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
Red Pen
Office & Productivity
Red Pen is an open-source proofreading tool for identifying writing issues in documents. It checks for spelling, grammar, style, and localization issues in over 20 languages.
proofreadingeditingwritinggrammar-checkspell-check
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