Flux – Pure Reflex
Reaction Time & Speed Test
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Pure reflex in its purest form. Race the clock in Sprint, climb global leaderboards, earn new worlds — all in silky-smooth 120Hz.
How fast are your reflexes? Find out.
Flux is a minimalist reaction time game designed to push your speed and focus to the limit. Tap the correct lane before tiles hit the bottom — and don't miss. One mistake and it's over.
No ads interrupting your flow. No complex menus. No distractions. Just you, your reflexes, and rising pressure.
WHY PLAYERS LOVE FLUX
• Pure reaction gameplay — tap fast, stay focused, survive
• Speed builds over time — the longer you last, the harder it gets
• Instant restart — no loading screens, jump right back in
• Buttery smooth performance with haptic feedback
• Minimalist design that keeps you in the zone
• Overlapping tile patterns that test your limits
THREE INTENSITY MODES
Classic — Learn the flow, build your skill
Rush — Starts fast and only gets faster
Hardcore — Smaller targets, maximum pressure
UNLOCK PRO
Take your training further with Pro mode:
• Rush and Hardcore difficulty modes
• Quad lane layout for elite players
• Premium visual themes
• Push your high score even higher
BUILT FOR FOCUS
Flux strips away everything unnecessary. No pop-ups. No energy systems. No waiting. Just a clean reflex challenge you can pick up in seconds and play for hours.
Perfect for quick brain training sessions, warming up before gaming, or competing with friends for the fastest reaction time.
How long can you stay in the flow?
he Feel Update
• Full 120Hz gameplay on ProMotion displays — smoother motion, faster response
• Every tap now bursts with satisfying feedback
• Missed a tile? The game rewinds to show you exactly which one ended your run
• Calls and notifications now pause your run — tap to resume, no lost progress
• Sprint mode gets a live progress bar
• New launch experience and a smoother first-play tutorial
• Bug fixes and performance improvements
The developer, Kosshii Apps, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Pieter Roelandt
- Size
- 17.8 MB
- Category
- Casual
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Flux Pro $0.00
- Copyright
- © 2025 KosshiiApps

