This is a fast reaction game / brain games.
Play this game to see how fast your brain can react!

Reactor Online includes 4 brain games:
- Mixed Game mode.
- Colors Game mode.
- Mathematic Game mode.
- Geometry Game mode.
Designed to challenge your attention, processing speed, mathematics skills, general knowledge, etc.

- Online Multiplayer !
- 2 Online modes: Invite and Play with Game Center friends or search online opponents!
- Improve skills using Single Player mode.
- Mixed Game mode.
- Colors Game mode.
- Mathematic Game mode.
- Geometry Game mode.
- Detailed players statistics.
- 60fps animated graphics.

Warning Signs of Seizures !!
A very small percentage of people may experience a seizure when exposed to certain visual images, including flashing lights or patterns that may appear in video games. Even people who have no history of seizures or epilepsy may have an undiagnosed condition that can cause these photosensitive epileptic seizures while watching video games.
These seizures may have a variety of symptoms, including lightheadedness, altered vision, eye or face twitching, jerking or shaking of arms or legs, disorientation, confusion, or momentary loss of awareness. Seizures may also cause loss of consciousness or convulsions that can lead to injury from falling down or striking nearby objects.
Immediately stop playing and consult a doctor if you experience any of these symptoms. Parents should watch for or ask their children about the above symptoms - children and teenagers are more likely than adults to experience these seizures.
The risk of photosensitive epileptic seizures may be reduced by taking the following precautions:
- Play in a well-lit room
- Do not play when you are drowsy or fatigued
If you or any of your relatives have a history of seizures or epilepsy, consult a doctor before playing.

What’s New

Version 1.1.4

- Support for iPhone X

Ratings and Reviews

3.5 out of 5
2 Ratings

2 Ratings

NYmonkey123 ,


Very nice app.


Piotr Ozog
11 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese, Polish

Age Rating
In-App Purchases
  1. Premium $0.99


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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