Big update! New mode "Flash Calculation" is here — numbers flash for a moment, train your instant recall. Free daily plays included.
When did you last do mental math without reaching for your phone?
百Math was built by an engineer who realized he'd become too dependent on calculators and AI to do even simple arithmetic. This app is his answer — and maybe yours too.
Trusted by users for 5 years, 百Math is a no-frills 100-problem calculation trainer. Solve all 100 as fast as you can, track your progress, and compete on the global leaderboard.
【Key Features】
・4 Modes: Addition, Subtraction, Multiplication, and Division
・Flash Calculation — a new mode that trains your instant recall
・Ghost Race — compete against your personal best
・Heatmap to spot your weak spots
・Clean, distraction-free design
・Global ranking system
・Streak counter, average time, and time chart to track improvement
・Home screen widget for quick access
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Thank you for using 百Math!
Here's what's new in this update:
・Added a new mode, "Flash Calculation" — numbers flash for a moment, training your instant recall
・Redesigned the home screen with tab navigation for Home, Records, Ranking, and Settings
・Added an option to purchase ad removal
・Minor bug fixes and improvements
Version 3.0.0
The developer, naoya saito, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Location
Identifiers
Usage Data
Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
Location
Identifiers
Usage Data
Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Dark Interface
Information
Seller
naoya saito
Size
18.4 MB
Category
Education
Compatibility
Requires iOS 18.0 or later.
iPhone Requires iOS 18.0 or later.
iPad Requires iPadOS 18.0 or later.
Mac Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
Apple Vision Requires visionOS 2.0 or later.
Languages
English and 3 more
English, Japanese, Simplified Chinese, Traditional Chinese
