# Kanji Trainer vs Numina

The clearest difference is iOS requirement: Kanji Trainer at 13.0 against Numina's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Kanji Trainer sells 1 in-app purchase, starting at $9.99 per year and Numina sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Kanji Trainer ships an update every 3 months, Numina every 2 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Kanji Trainer | Numina |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/kanji-trainer/id1619482195/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 120 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ulrich Neymeyr](https://appshunter.io/developer/1619482197) | [SVERRE ANKER LARSEN GROENAAS](https://appshunter.io/developer/1891891659) |

## What reviewers say

### Kanji Trainer

[App page](https://appshunter.io/ios/app/kanji-trainer/id1619482195)

Master Japanese kanji with mnemonic phrases derived from etymological backgrounds. This app offers targeted repetition, detailed statistics, and training modes for reading, writing, and radicals. Learn 2136 Joyo-Kanji and 500 radicals effectively.

**Highlights:** Mnemonic phrases based on etymology, Reading and writing practice, Targeted repetition of unlearned characters, Detailed learning statistics, 2136 Joyo-Kanji included, Radical training modes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $9.99 | per year |


### Numina

[App page](https://appshunter.io/ios/app/numina-learn-mental-math/id6761914306)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Numina PRO | $8.99 | per month |
| Numina PRO | $79.99 | per year |


## Frequently asked questions

### Is Kanji Trainer free?

Kanji Trainer is free to download, with in-app purchases available.

### Is Numina free?

Numina is free to download, with in-app purchases available.

### Do Kanji Trainer or Numina have ads?

Neither Kanji Trainer nor Numina shows ads.

### Which is updated more often, Kanji Trainer or Numina?

Kanji Trainer ships an update every 3 months, and Numina every 2 months. Most recently, Kanji Trainer was updated on October 24, 2026 and Numina on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*