PhotoView
A focused viewer for the photos and videos in your photo library, with full-screen viewing, a deep EXIF, IPTC, TIFF and GPS metadata overlay, map locations, slideshows and AirPlay, on iPhone, iPad and Mac.
iPhone, iPad and Mac apps by Detlev Voss
Apps for everyday life, made by an independent developer in Berlin: a photo viewer that shows the metadata behind every picture, a timer and alarm app, and a classic Sudoku.
My Apps
Blog
Timers & Alarms
A timer and alarm app for iPhone and iPad — countdown timers, interval timers, a stopwatch, alarms, widgets, Live Activities, and Siri, all in one place.
Sudoku
A clean, distraction-free Sudoku for iPhone and iPad — five difficulty levels, pencil notes, hints, show, Challenge Mode, and a built-in strategy guide.
Facts at a glance
- Developer
- Detlev Voss, independent developer, Berlin, Germany
- Apps
- PhotoView (Photo & Video), Timers & Alarms (Utilities), Sudoku (Games)
- Devices
- iPhone and iPad, PhotoView also on the Mac
- Price
- All three are free to download, with no ads and no subscriptions. PhotoView Pro is an optional one-time purchase; Timers & Alarms and Sudoku have an optional tip jar that unlocks nothing.
- Privacy
- None of the apps needs an account, shows ads or tracks you.
- On the App Store since
- April 2026
- Languages
- Website in English and German; apps in English and German, Timers & Alarms also in French and Spanish
- App Store
- All apps by Detlev Voss on the App Store