CrazyDigits RTA
Memorize. Smash. RTA.
Only for iPhone
Free
iPhone
See it. Hear it. Memorize it in an instant — then hammer the ten-key at lightning speed before time runs out. Compete with number-training RTA players around the world and claim the top spot. A new style of "Real-Time Attack" (RTA) game so addictive you can't put it down.
■ Main Modes
• Normal (with / without hyphens)
• Geek (Reverse Order)
• Audio Mode (Forward / Reverse Recall)
• Infinite Stairs (Visual / Reverse / Audio / Audio Reverse)
• Beginner Mode (2–6 digits at your own pace)
• Custom Mode (Combine conditions freely to create your own training)
■ Game Features
• Each stage lasts only a few seconds — test your short-term memory and reflexes!
• After a 3-2-1 countdown, the game starts instantly based on the digit count
• New personal bests are auto-submitted to the online rankings
• So addictive you'll find yourself playing until dawn — frustration meets an overwhelming sense of achievement
• Unlock achievements and titles the more you play
• No login required — just launch the app and start instantly
■ Perfect For
• Fans of memory sports and brain training
• Anyone looking to sharpen their instant-recall skills
• Those who want to improve their typing speed on a smartphone
• People who want a fun game for their commute or free moments
• Players who want to compete with challengers around the world
• Anyone with lightning-fast mobile typing skills they want to put to use
• Anyone who wants to see themselves grow day by day
■ Features
• Full Japanese and English language support
• Customizable background themes (Dawn / Dusk / Night)
• Switchable keypad layouts (Phone / Calculator)
• Supports up to 60 digits, optimized for smartphone screens
• A rare feature for an RTA game: built-in break time between stages
Take on your limits now with CrazyDigits RTA!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, GAKU NAKAMURA, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- GAKU NAKAMURA
- Size
- 23.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
13+
- 13+
- Frequent
Contests
- Copyright
- © 2026 GAKU NAKAMURA