- SimpleGym: Fitness App
- SimpleJob
- SimpleTalk VSIP
- SimpleURL No Ads
- SimpleVisor
- Simplex
- Simplicity - City App
- Simplified for Twitter
- Simplifier for Facebook
- Simply HDR
- Simply Local Nexus
- Simply Watercolor
- Simpovent
- Simpplr
- SimSimi
- Since — интересные люди
- SineFilm
- Singapore Jobs
- Singapore Matrimony
- Singapore Reef Club Forum
- Singapore Reef Club Forum
- SingaporeMotherhood Forum
- SingApps
- SingSpot, live singing online
- Single And Divorced Dating
- Single Habibi
- Single Question
- Single to Mingle - Dating App
- Single.al
- SingleMum
- SingleMuslim
- Funkenflug Dating App & Events
- Singles Konnect
- SinglesAroundMe Local dating
- SinglesAroundMe London Dating
- SinglesAroundMe New York
- SingleShia
- SingSnap Karaoke II
- Sinhala Stickers
- Sint-Jansgemeente
- Sint-Pieters-Leeuw
- Sint-Truiden City-App
- Sintonia
- Sionskerk Alphen aan den Rijn
- Siopi
- SIPA CampusGroups
- SipGo - Sip Dialer
- SIPNET - недорогие звонки
- Sippy, Come Out And Play
- SIPVoice
- SIR Connect
- Sirchan - Twitterの検索をもっと簡単に -
- Sirop
- SIS Brasil
- SISAP Giáo viên: Giảng dạy
- SISAP Học sinh: Ôn tập
- SISAP Phụ huynh
- Siskin IM