- O Rastreador do Garimpeiro
- O-City
- O2 Car Control
- Oahu GPS Audio Tour Guide
- Oahu Offline karta och reseguide
- Oakland Airport (OAK) + Radar
- Oasi Ca' Granda
- OasisPlus
- Oaxaca Reseguide med Offline Karta
- Oaxis WatchPhone
- ObhaiVTS™
- Obodam
- ObsEnMer
- OBU City
- OBX Tourist Guide
- OCC App
- OCCC Campus Wayfinding
- Occupied: Available TfL Spaces
- Ocean Alert
- Ocean Signal
- Ocean Signal
- Ocean Skills Learning
- Oceanien Reseguide Offline
- OceanTrack
- Ocho Rios Tourism Guide
- Ocorrências Madeira V2
- Octopus Electroverse
- Octopus Systems LTD
- OCナビ
- Odessa Offline karta och reseguide
- ODIN Tracking
- Otwarta Turystyka
- ODO Check
- Odometer - Distance Measure & Mileage Calculator
- Vägmätare+
- Odometer+ Lite
- ODOmobile
- OdosMove
- Odpiralni Časi
- Off-Road Charts
- Offbeat Attractions
- Offenbacher Mängelmelder
- Officiële App Giethoorn
- Offizielle Dresden App
- Offizielle Weser-Radweg-App
- Offline Guide: Cedar Point
- Offline Guide: PortAventura
- Offline Guide: TDR+TDS
- Offline-karta + GPS-navigering
- Offline Map App
- Offline Map Navigation
- Offline Maps - custom area caching and real-time label tracking
- Offline kartor Europa
- off-line navigering rutt Karto
- Offline San Bernardino NF
- Offline Vector Map Downloader
- Offline.maps
- Offshore Safe Approach Calc