# Num Trainer — Stay focused with numbers

> 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/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: Japanese, Chinese (Simplified, China), American English, European Spanish
- Released: 2020-09-10
- Data updated: 2026-10-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/num-trainer/id1531055741/reviews.md

## What is Num Trainer?

Num Trainer is a lightweight app for building sharper number skills through four focused training games. Improve attention, memory, reaction speed, mental math, and logic with short practice sessions you can fit into your day.

Choose your challenge:

• Mental Math — solve addition, subtraction, multiplication, and division problems.
• Memory Pairs — remember positions and match identical numbers.
• Tap in Order — find and tap numbers from smallest to largest.
• Digit-by-Digit Math — remember a number, then transform each digit using the same step.

Adjust the difficulty to match your level, play at your own pace, and review completed sessions in Training History. With a clean, distraction-free interface and no ads or in-app purchases, Num Trainer keeps number practice simple and focused.

## Key features

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

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/num-trainer/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)

### 1.4.0 — 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

### 1.0 — 2020-09-10

No release notes.

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## More apps by Yang Wang

- [Sfumato: Wallpaper Studio](https://appshunter.io/ios/app/sfumato-wallpaper-studio/id6804210449)

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 2026-10-04.*