# Num Trainer: Brain Training — Mental Math & Memory Games

> Number-based exercises to improve cognitive skills like attention and memory. (iPhone/iPad app by Yang Wang.)

- Source: https://appshunter.io/ios/app/num-trainer-brain-training/id1531055741 (this page in markdown: same URL + `.md`)
- Developer: [Yang Wang](https://appshunter.io/developer/1531055743)
- Category: Education, Lifestyle
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 2 MB
- Languages: Chinese (Simplified, China), Japanese, American English, European Spanish
- Released: 2020-09-10
- Data updated: 2026-10-27
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/num-trainer-brain-training/id1531055741/reviews.md

## What is Num Trainer?

Num Trainer is a brain training app for faster number skills. Four focused games build attention, memory, reaction speed, mental math and logic in short sessions you can fit into any day.

NEW: GLOBAL LEADERBOARDS
Sign in to Game Center and your fastest times are ranked worldwide. There is a leaderboard for every game and every difficulty, so you always compete on equal rules. Not signed in? Everything still works and your records stay on your device.

FOUR TRAINING GAMES
• Mental Math – solve addition, subtraction, multiplication and division against the clock, from Beginner to Expert.
• Number Pairs – memorise card positions and match every identical pair.
• Tap in Order – a Schulte-table style challenge: find and tap numbers from smallest to largest as fast as you can.
• Digit-by-Digit Math – remember a number, then transform each digit with the same step.

TRACK YOUR PROGRESS
Training History charts your latest, best and median time for every game and difficulty. Open the record list to review each session and the exact settings you played.

SIMPLE AND FOCUSED
Clean, distraction-free design, light and dark appearance, English, Simplified Chinese, Spanish and Japanese. No ads, no in-app purchases and no account required.

## Key features

- Improve reflection and focus
- Enhance attention and memory
- Develop mental math skills
- Boost logic abilities
- Multiple training modes
- Adjustable difficulty levels

## Is Num Trainer safe?

Not enough ratings yet to assess Num Trainer.

## Is Num Trainer legit?

Num Trainer: Brain Training appears to be a legitimate app. The AppsHunter Legitimacy Score for Num Trainer is 90 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/num-trainer-brain-training/id1531055741/reviews.md

### 5/5 — Great！

*2020-09-22*

Good for kids.

### 5/5 — 加油吧少年.

*2020-09-14*

继续优化吧. 老不老年痴呆就看它了.

### 5/5 — interesting

*2020-09-10*

interesting

## Frequently asked questions about Num Trainer

### What is Num Trainer?

Num Trainer is a free educational app designed to improve cognitive skills such as attention, memory, and mental math through engaging number-based exercises.

### How long do Num Trainer exercises take?

Each training mode in Num Trainer takes less than a minute to complete at an easy level, making it convenient for on-the-go brain exercise.

### Can I adjust the difficulty in Num Trainer?

Yes, you can increase the difficulty in Num Trainer as you become more comfortable, allowing for continuous challenge and improvement.

### Is Num Trainer suitable for children?

Yes, Num Trainer is designed to be kid-friendly, focusing on basic numbers and math to help children learn and improve their cognitive abilities.

### Does Num Trainer have ads?

No, Num Trainer is ad-free, providing an uninterrupted experience for users of all ages.

### Are there in-app purchases in Num Trainer?

No, Num Trainer does not have any in-app purchases, making all features accessible for free.

### What devices does Num Trainer support?

Num Trainer is available on iPhone and iPad devices.

### How often is Num Trainer updated?

The latest version of Num Trainer is 1.3.2, which was last updated on October 22, 2020. The app was initially released on September 10, 2020.

## Version history (last 5 releases)

### 1.5.0 — 2026-10-26

• New: global Game Center leaderboards, with one board for every game and difficulty. Your best time is ranked worldwide.
• Training History now links straight to the leaderboard for each difficulty.
• Smoother record details: each record now opens downward without shifting the card.
• Refreshed app icon.
• Number Pairs, Tap in Order, Mental Math and Digit-by-Digit Math now use consistent names throughout the app.

### 1.4.0 — 2026-09-03

V1.4.0 introduces a refreshed training experience with a clearer home screen, unified game flow, improved settings and guides, more reliable training history, and a cleaner visual design across all four trainers.

### 1.3.2 — 2020-10-22

- Improve haptic feedback
- Minor change of icons

### 1.3 — 2020-09-22

- New animation for button pressed
- Add answer indicator to 2 trainers
- Able to share training record
- UI improvements
- Works better on iPad
- Minor bug fixed

### 1.1 — 2020-09-13

- Added [How To] and [Difficulty] buttons to every training page
- Now able to swipe and delete training record
- Minor UI optimization
- Dark mode compatibility

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## More apps by Yang Wang

- [Sfumato: Wallpaper Studio](https://appshunter.io/ios/app/sfumato-wallpaper-studio/id6804210449)
- [PinWall: Lock Screen Notes](https://appshunter.io/ios/app/pinwall-lock-screen-notes/id6819263109)

All apps by Yang Wang: https://appshunter.io/developer/1531055743

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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 2026-10-27.*