- Sistem eKonsular
- SISTEMA V 2.0
- SIT Client
- SIT GPS
- Site Guide Navigation & Pager
- Sitealcanza - Compra y vende
- Sitecomm GPS
- SitePlan
- SiteSense Systems
- Sitium
- Yutraffic Messenger
- YuBike
- SITREP Tactical Mapping (iTAK)
- SitReport
- Situate
- Siu Mobile BH
- Siu Mobile Teresina
- SivasMobil
- SixthBoro - Realtime PATH Data
- SIZgo
- SióBusz
- Sk8pots
- Skagen Offline Map and Travel Trip Guide
- Skansen Chorzów
- Skanzen
- Skarby Blisko Krakowa
- Skatespot
- Ski Haute-Gaspésie
- Ski Tracker – Snow Trail Map with Riding Report
- Ski Tracks
- Ski Tracks Lite
- Skif Pro
- SkifMe
- Skiguide Zermatt
- SkiMap3D-Yllas
- SkiMaps - Download Trail Maps
- SkiPal - Accurate Ski Tracks
- Boat Logbook Marine Navigation
- Skipper Navigation
- Skippers Log
- Skippertools - Logbook & More
- Ski Master - ski track tool
- Skipton Castle Woods
- SkiTrack
- Skopje Offline Map and Travel Trip Guide
- Skovskolens Skattejagt
- SKS/MYBIKE
- Skuba Route
- SkunkTracker
- SKY GUARDIAN GPS
- Sky-Map
- SkyCharts XC EFB
- SkyDemon
- SkyDoc
- Skyhost GPS
- SkyLogger
- SkyLoggerXXL
- Skymark Móvel
- Skyobd
- Skypatrol App
- SkyPro GPS Status Tool
- Skyriver GPS
- SkyRouter