One-f is made and published by Rikiya Ota. AppBrain is an independent app data site and isn't affiliated with Rikiya Ota. The app name, icon, screenshots and description belong to Rikiya Ota and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- January 9, 2026
- Size
- 4.97 MB
User feedback
Ratings and reviews on the App StoreComments on One-f for iOS
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Store listing
By Rikiya Ota, from the App Store
Screenshots by Rikiya Ota, from the the App Store listing
Description by Rikiya Ota Written by the developer, not by AppBrain. Click to read.
How to Play
【GOAL】Reach the target within 2 seconds!
【CONTROLS】Tap or swipe 1, 2, 4, 8 buttons
【EXAMPLES】Target 7 → 1+2+4, Target 15 → 1+2+4+8
【SCORING】Faster = higher score! Compete over 10 questions
Why No Rankings?
【Humans and Bots Together】
AI and bot play welcome. Challenge the limit of 65,535 freely.
Rankings mixing manual and automated play can't show true skill.
【Share on Social Media】
"Screenshot" on result screen → Post with #One-f
Both human and bot records are welcome.
For Automation Users
【Share Your Setup】
If using automation tools or bots, we encourage sharing your tech.
Example: #One-f #Python #OpenCV
【Why Share?】
- Connect with similar users
- Share and improve techniques
- Fair competitive environment
Manual or automated, play openly and have fun.
【GOAL】Reach the target within 2 seconds!
【CONTROLS】Tap or swipe 1, 2, 4, 8 buttons
【EXAMPLES】Target 7 → 1+2+4, Target 15 → 1+2+4+8
【SCORING】Faster = higher score! Compete over 10 questions
Why No Rankings?
【Humans and Bots Together】
AI and bot play welcome. Challenge the limit of 65,535 freely.
Rankings mixing manual and automated play can't show true skill.
【Share on Social Media】
"Screenshot" on result screen → Post with #One-f
Both human and bot records are welcome.
For Automation Users
【Share Your Setup】
If using automation tools or bots, we encourage sharing your tech.
Example: #One-f #Python #OpenCV
【Why Share?】
- Connect with similar users
- Share and improve techniques
- Fair competitive environment
Manual or automated, play openly and have fun.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 4.97 MB
- Content rating
- Everyone
Technologies used by One-f
Releases
Updates seen on the App Store- Version
- 1.11
- Launched
- January 2026
No changelog data
Alternatives
Similar apps and more from Rikiya OtaAlternatives to One-f
Rankings
App Store top chartsApp Store Rankings for One-f
This app is not ranked
About the app and developer
About One-f
One-f is a games app developed by Rikiya Ota.
User Ratings
The app has no ratings yet.
App Information
One-f is freely available from the App Store. The app size is 4.97 MB. The latest version available is 1.11. The last update was on January 9, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since January 2026.
Developer information for Rikiya Ota
Address: