- Optomic
- OptSpot App
- Optticshell
- Opus - find workspaces
- RINA Fast
- Opus App
- OPUS Architecture & Design
- Opus Domini
- Opus Domini Mobile
- Opus One: Daily Planner
- OPUS4Business
- OPUS4Managers
- Opzioni Binarie Italy
- Opção Condomínios
- OQR Manager:辦活動的小幫手
- OQUEI COM VOCÊ
- OR Manager Events
- OR-TAK
- Ora - Task Management
- Ora - Tasks & Collaboration
- Ora Control
- Ora Device
- Ora Sales
- Oracle Aconex
- Oracle Cloud Infrastructure
- Oracle Content
- Oracle CX Sales
- Oracle Field Service
- Oracle Fusion Expenses
- Oracle Fusion Applications
- Oracle Hospitality Smart Crew
- Oracle IoT Asset Monitoring
- Oracle IoT Fleet Monitoring
- Oracle IoT Prod Monitoring
- Oracle Live Experience
- Oracle Management Cloud Mobile
- Oracle Primavera Cloud
- Oracle Primavera P6 EPPM
- Oracle Primavera Unifier
- Oracle Process Mobile
- Oracle Product Lifecycle Management Mobile
- Oracle WebCenter Content
- Oracle WebCenter Spaces 11g Release 1
- Oracle WMS Cloud Mobile
- OracleProg2 - Oracle Client
- Orah Checkpoint
- OracleProg2 - Oracle Client
- Orah Checkpoint
- Orah Student App
- OraHome
- Orai - Improve Public Speaking
- Orai - Never Late to Meetings
- Orakel Ticket Scanner
- Orange - Focus Timer
- Orange 10
- Orange 24/7
- Orange Box
- Orange Diary - Private Journal
- Orange Diary-Gratitude Journal
- Orange Island
- Orange Money Agent
- Orange Money Jordan
- Orange NMR
- Orange Notes
- Orange Peel
- Orange Squash for FogBugz
- Orange Wash
- OrangeBag