# OptiBrain UCMAS Practice — Listening and Flash Practice

> Listening and Flash Practice (iPhone/iPad app by Justin Daludado.)

- Source: https://appshunter.io/ios/app/optibrain-ucmas-practice/id6778267561 (this page in markdown: same URL + `.md`)
- Developer: [Justin Daludado](https://appshunter.io/developer/1779347505)
- Category: Education, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 83 MB
- Languages: American English
- Released: 2026-07-20
- Data updated: 2026-08-20
- User reviews in markdown: https://appshunter.io/ios/app/optibrain-ucmas-practice/id6778267561/reviews.md

## What is OptiBrain UCMAS Practice?

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.


## Version history (last 2 releases)

### 1.1.0 — 2026-07-26

- bug fixes
- security updates

### 1.0 — 2026-07-20

No release notes.

## More apps by Justin Daludado

- [don't secure me](https://appshunter.io/ios/app/dont-secure-me/id6738100050)
- [NextMove](https://appshunter.io/ios/app/nextmove/id6752559277)
- [ExploreRL](https://appshunter.io/ios/app/explorerl/id6758944321)

All apps by Justin Daludado: https://appshunter.io/developer/1779347505

## Related topics

[ucmas](https://appshunter.io/ios/topics/ucmas)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*