Interval: Reaction Games

Test your timing with short reaction games, compare your sessions and build mixed challenges to share with friends. Interval is a collection of 13 short reaction games for iPhone. Wait for the traffic light to turn green, choose the correct direction, release at the right moment, follow changing rules, or respond to sound and touch cues. Each game explores a different kind of attention and timing. Pulse uses tactile cues and requires supported iPhone haptics. Devices without haptics can play the other 12 games. Challenges containing Pulse also require supported haptics for every participant. TEST YOUR REACTION Start with a six-trial warm-up or take a 20-trial standard test. See your response times, mistakes and consistency, then return to your history to compare sessions. Early taps count as false starts. MAKE A MIXED CHALLENGE Combine up to six stages into one challenge, choosing the games and number of trials. Share the invitation with a friend. Friends can join for free, including the games in your invitation. Save an unfinished circuit and return to it later. PLAY TOGETHER Create local player profiles, pass the iPhone between friends and compare clean standard tests on local leaderboards. Custom challenge results can be shared manually; challenge invitations do not automatically synchronize scores between devices. A LITTLE PRACTICE, OFTEN Return to your most recently played game from Today, try the daily circuit and explore an original illustrated game library. Light and dark appearances, adjustable interface text and optional feedback help you make the space your own. FREE AND INTERVAL PLUS Free play includes Traffic, Signal, Fork, daily circuits, basic history and joining friend challenges. Advertising is disabled in this launch version. Interval Plus unlocks all 13 solo games and standard tests, custom challenge creation, advanced session comparisons and an ad-free experience. Choose a monthly subscription or a single lifetime purchase; both include the same benefits. Prices are displayed by the App Store for your region. Monthly subscriptions renew automatically unless cancelled in Apple subscription settings. Restore purchases with the same Apple Account. Interval measures timing on your device. Display, touch and audio latency affect results. It is a game and practice tool, not a medical assessment, driving-fitness test or guarantee of improved performance outside the app. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/