How in sync are you two?
Thumb Sync is a pass-the-phone game for two people. Hold one thumb each, lift off together when the cue fires, and discover your Sync % — soulmates or strangers?
Two people, one phone — one thumb each on a split screen.
Millisecond lift-off gaps turned into a shareable Sync %.
Tap, Color, Word, and Rhythm Match — same mechanic, new twists.
Animated Sync cards built for TikTok, Snap, and IG.
Pick a mode and pass the phone
One thumb each — lift off together on the cue
See your Sync % and verdict after five rounds
Export a shareable Sync card for social media
Thumb Sync measures how in sync you and a friend really are. Pass the phone, place one thumb on each half of the screen, and lift off together the instant the screen flips. Over five rounds the app captures the millisecond gap between your lift-offs and turns it into a shareable Sync %.
Key Features: - Pass-the-Phone Gameplay: Built for two people in the same room — one thumb each, no accounts required. - Precision Timing: Sub-millisecond lift-off detection powered by native multitouch input. - Multiple Game Modes: Tap Sync, Color Match, Word Match, and Rhythm Match — same core mechanic, different prompts. - Shareable Sync Cards: Animated results you can screenshot and share on TikTok, Snap, or IG. - Best Score Tracking: Save your personal best Sync % for every mode.
Whether you're settling a friendly debate or creating content for social, Thumb Sync turns a simple reaction test into a moment worth sharing. Grab a friend and find out — are you soulmates or strangers?