YouthHotspot is the perfect app for your next trip to Germany. You have access to free WiFi hotspots and hundreds of tips for bars & cafés, shopping, festivals+ over 80 vouchers. The app works completely offline from the first app start on.
You can download the app for free from the AppStore. The app is also available on Android.
Unless otherwise mentioned in the post, those projects are side projects which I work on on weekends and evenings, and are not affiliated with my work or employer.