iOS REFLEX GAME
TAP FAST · BUILD COMBOS · SCORE BIG
DOWNLOAD ON APP STORE← TAP THE GLOWING CELL
FEATURES
A pure test of speed and precision. No filler, no story — just you, the grid, and a shrinking window to react.
The time window shrinks every 5 hits. What starts at 900ms reaches 250ms at peak difficulty.
Chain fast hits to fill the fever meter. When it pops, score multipliers go into overdrive for 5 seconds.
Hit fast to chain combos. Reach ×1.2, ×1.5, and ×2.0 tiers. Every miss resets the chain.
NEON, ICE, and EMBER. Each with its own colour palette, glow effects, and visual style.
GAME MODES
Three lives stand between you and game over. Miss a cell, lose a life. Run out of lives and the run ends — unless you watch a rewarded ad for one last chance.
Sixty seconds. No lives to lose, just time ticking down. Maximise your score before the clock hits zero. Every tap counts.
SUPPORT
Is Reaction Grid free to play?
Yes, the game is completely free. Optional rewarded ads let you continue a Classic run after losing all lives.
Does the game save my scores?
Your best scores for Classic and 60 Second modes are saved locally on your device. No account required.
What iPhones is it compatible with?
Reaction Grid requires iOS 17 or later and runs on all iPhones and iPads that support it.
How does the Fever mode unlock?
Build a combo of 20 or more with fast hits. Each fast hit above that threshold fills the fever meter. When it's full, Fever activates for 5 seconds.
How do I switch themes?
Tap any of the three theme chips on the main menu — NEON, ICE, or EMBER. Your choice is saved automatically.
Found a bug? Have a suggestion? We read every message and aim to respond within 48 hours.
support@dejagames.comRate the game or report an issue directly through the App Store listing.
VIEW ON APP STORE →LEGAL
LAST UPDATED: JANUARY 2026
Reaction Grid ("the App") is operated by Deja Games ("we", "us", or "our"). This Privacy Policy explains what information the App collects, how it is used, and your rights in relation to it.
We are committed to protecting your privacy. The App is designed to work without collecting any personal information from you.
Reaction Grid does not collect, transmit, or share any personal information. Specifically:
The App stores the following data locally on your device only using iOS UserDefaults. This data never leaves your device and is not accessible to us:
You can delete all locally stored data at any time by uninstalling the App.
The App may display advertisements provided by Google AdMob. AdMob may collect certain device identifiers and usage data in accordance with their own privacy policy. You can review Google's privacy practices at policies.google.com/privacy.
We do not control the data practices of AdMob and encourage you to review their policy directly. If you wish to opt out of personalised advertising, you can do so through your device's privacy settings under Settings → Privacy & Security → Apple Advertising.
The App does not knowingly collect personal information from children under the age of 13. If you are a parent or guardian and believe your child has provided personal information, please contact us at the email address below and we will take steps to delete such information.
Since we do not collect any personal data on our servers, there is no data for us to retain or delete. All data stored locally on your device is under your full control and is removed when you uninstall the App.
Depending on your location, you may have rights under applicable privacy laws including the right to access, correct, or delete personal data held about you. Since we hold no personal data about you, these rights are satisfied by design. If you have any questions, please contact us.
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated date at the top. We encourage you to review this page periodically.
If you have any questions or concerns about this Privacy Policy, please contact us at:
Deja Games
Istanbul