# DiaryTutor vs Tomaru

The clearest difference is in-app purchases: DiaryTutor at none against Tomaru's 6. DiaryTutor also leads on update cadence (every 3 days vs monthly) and iOS requirement (13.0 vs 16.4). Tomaru's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Tomaru sells 6 in-app purchases, starting at $5.99 per month. DiaryTutor asks for nothing beyond the download.

DiaryTutor ships an update every 3 days, Tomaru monthly. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | DiaryTutor | Tomaru |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tomaru-never-forget-a-word/id6765955927/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 65 MB | 126 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YEN-HSUN LI](https://appshunter.io/developer/1894530013) | [YINGLUEN TSENG](https://appshunter.io/developer/1896139802) |

## What reviewers say

### DiaryTutor

[App page](https://appshunter.io/ios/app/diarytutor/id6762529082)

**In-app purchases:** none


### Tomaru

[App page](https://appshunter.io/ios/app/tomaru-never-forget-a-word/id6765955927)

This app uses spaced repetition and AI-powered practice to help you effectively learn and retain new vocabulary. It offers pre-made decks, one-tap vocabulary import from various sources, and immersive focus features.

**Highlights:** Spaced repetition system (FSRS algorithm), Pre-made vocabulary decks with rich content, One-tap vocabulary import from text, AI-powered shadowing, translation, and grammar drills, Immersive focus with ambient sounds

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tensai Basic Monthly Subscription | $5.99 | per month |
| Tensai Basic Quarterly Subscription | $14.99 | per 3 months |
| Tensai PRO Monthly Subscription | $15.90 | per month |
| Tensai PRO Quarterly Subscription | $44.99 | per 3 months |
| Tensai Basic Annual Subscription | $49.99 | per year |
| Tensai PRO Annual | $169.99 | per year |


## Frequently asked questions

### Is DiaryTutor free?

DiaryTutor is free to download, with no in-app purchases.

### Is Tomaru free?

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

### Do DiaryTutor or Tomaru have ads?

DiaryTutor shows ads; Tomaru does not.

### Which is updated more often, DiaryTutor or Tomaru?

DiaryTutor ships an update every 3 days, and Tomaru monthly. Most recently, DiaryTutor was updated on October 9, 2026 and Tomaru on October 12, 2026.

---

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