OptiBrain UCMAS Practice
Listening and Flash Practice
Free · Designed for iPad. Not verified for macOS.
A focused practice app for abacus students that builds mental calculation speed, accuracy, and confidence through short, repeatable sessions.
Key features:
- Two practice modes: Listening (audio-driven mental calculation) and Flash (visual rapid number recall).
- Curriculum + customization: start with curriculum levels, then tailor digits, rows, formulas, and pace to match each student’s level.
- Quick, structured sessions: short practice runs designed for daily repetition and skill-building.
- Instant feedback and review: see results right away and review missed answers after each session.
- Progress tracking: view streaks, accuracy, practice history, and weak-spot analysis to focus improvement.
- Updates and communication: receive announcements, posts, and YouTube lessons from OptiBrain UCMAS.
- Push notifications: opt in to receive important updates and practice reminders.
- Data storage: practice data is saved to keep track of history and performance.
Get started and begin short daily practices to build speed and accuracy.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- bug fixes
- security updates
The developer, Justin Daludado, 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
- Justin Daludado
- Size
- 86.7 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 12.0 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+
- Copyright
- © 2026, Justin Daludado