- Rick Sammon's Composition Plus
- RicohProPrint AR
- Ricordi Jigsaw Puzzles
- Riddle School District
- Riddle This Riddle That
- Riddles & Brain Teasers Quiz
- Riddles Brain Teasers Quiz Games ~ General Knowledge trainer with tricky questions & IQ test
- Riddles Now
- Riddles Trivia Question Games
- Riddles, Brain Teasers
- Ride iQ: Horse Audio Lessons
- RIDE, Learn language, vocabulary puzzle.
- Horse Riding Tracker Rideable
- Rider University
- Ridge PF Debate Timer
- Ridgedale Local Schools, OH
- Ridgefield School District, WA
- Ridgeland School District 122
- Ridgeview Church Rockwall
- Ridgeview Ministries
- Ridgeview Mustangs
- Ridgeway Muslim School
- Ridgewood.Church
- Ridin High Cowboy Church
- Ridit
- Riemann Sums Calculator
- Riesgos eléctricos
- RIF Reading Log
- Riffler
- Right Color Hit
- Right Management LMS
- Right Note - Ear Trainer
- Right Plants
- Right Resident, Ready Day One
- Right Response Ministries
- Right Triangle Solver
- Right Response Ministries
- Right Triangle Solver
- RightNow Media
- RightPath Career Counselling
- RightRead - Kids Leveled Books
- Rights Discovery - by CRD
- RightSteps
- Rigibi
- Rigoland
- Rigolo l'app
- RigRite
- RigVeda
- Riichi Mahjong Hand Calculator
- RijbewijsApp
- Rijbewijzen
- Rijeka Fiume in Flux
- Rijksmuseum Visitor Guide