- Solvemate: Chat & Dating
- SolvNetPlus: Customer Portal
- SOL™ Search. Search Better. Search Faster. Search Social.
- SOM Liptovský Mikuláš
- SoMee Social
- Someljė mokykla
- Someone likes you
- Somluv
- Somos Agro
- Somos Cruz Roja Madrid
- SOMOS H
- SOMOS un banco para ti
- SoMusiX
- Dating and Meeting
- Sonant - audio conference call
- Sonar Chat
- Sonar: create worlds together
- Sonbei
- Sondago - Make new friends
- SongButler
- SongShare
- Songswap
- Songtree - Music Maker
- Songtree Music Maker - Sing, Jam & Record
- SONGYFT
- Sonic AI - Audio Messenger
- SonicMessenger
- Sonlife Ministries
- SonneSpirit
- Sonny Angel
- SoonerApp Oklahoma Football
- Soons. Join your friends, now!
- Sophia - New Friend
- Sophie-Scholl GemeindeApp
- SoPo - Social Poker
- SORA Wallet: Polkaswap
- Sorry Children
- Sorry or Sorry
- Sortates
- SOS America
- SOS Members App
- SOS Mulher
- SOSAFE - City Social Network
- SoShi Fanclub
- Sosialistisk Venstrepartis app
- SoSo Stickers
- SoSpoilt for Creators
- Sosyal Medya'da Beşiktaş - Transferler ve Haberler
- Sosyo
- SOTE.life
- SoTellUs
- SOU2021
- Soudfa - دردشة، تعارف، زواج
- SOUDIAN