- Oki Islands Ferry Guide
- Okinoshima Finder
- OkMap Mobile
- OKQ8 Elbilsladdning
- OKQ8 GO
- OkyDoky App
- Old Aberdeen
- Old Bucharest (Lite Version)
- Old Holland Tour
- 昔の航空写真地図 (70年代マップ)
- Olife Energy
- OLLY Car Assistant
- OLP WDW Transportation Wizard
- Olsztyńskie Cmentarze
- Oltrarno App
- OltrepoPavese
- Olympia Tracking
- Olympic Brick Finder
- Oman Airports
- Oman Offline karta och reseguide
- Oman Real
- Omio: Boka tåg, buss och flyg
- OMN - Outdoor Map Navigator
- OmniAccess Stellar LBS Install
- OmniBuzz - Bus Alarm
- Omnicomm for iPhone
- Omnie CUE 歐尼交通情報達人
- Omnie GO
- OmniRide
- OmniTracker
- OmniTrax
- Omniweb
- Omobi Ortsbus Murnau
- On Command Connect Global