Marcel Wichmann is an indie developer on the App Store with 4 apps. On IndieRank, they are ranked #1620 out of 6,329 developers (top 26%). Their primary category is Health & Fitness, with 52 total ratings and a 4.8★ weighted average. Their most popular app is Mood Tracker: UNHINGED with 27 ratings and a 5.0★ score.