# Grass vs Mito

The clearest difference is in-app purchases: Grass at none against Mito's 2. Mito's advantage is update cadence (every 3 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Mito sells 2 in-app purchases, starting at $5.99 per month. Grass asks for nothing beyond the download.

Grass ships an update every 9 days, Mito every 3 days. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Grass | Mito |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mito-flashcard-study-rpg/id6779767896/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 5 MB | 104 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Paul Kim](https://appshunter.io/developer/1481428821) | [Yukitaka Watanabe](https://appshunter.io/developer/6779767898) |

## What reviewers say

### Grass

[App page](https://appshunter.io/ios/app/grass-visual-focus-timer/id6752250835)

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

**In-app purchases:** none


### Mito

[App page](https://appshunter.io/ios/app/mito-flashcard-study-rpg/id6779767896)

This app transforms studying into an engaging pixel-art RPG. Earn rewards, battle monsters with your knowledge, and collect unique characters by mastering flashcards and focus sessions. It makes spaced repetition enjoyable and habit-forming.

**Highlights:** Spaced repetition with FSRS algorithm, Turn-based battles powered by flashcard answers, Collect and level up biobud characters, Focus timers with optional in-app lock, Study together with friends and classes, Offline progress saving, Import custom decks

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mito Pro Monthly | $5.99 | per month |
| Mito Pro Yearly | $34.99 | per year |


## Frequently asked questions

### Is Grass free?

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

### Is Mito free?

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

### Do Grass or Mito have ads?

Neither Grass nor Mito shows ads.

### Which is updated more often, Grass or Mito?

Grass ships an update every 9 days, and Mito every 3 days. Most recently, Grass was updated on October 11, 2026 and Mito on October 12, 2026.

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