# moo ANKI｜忘却曲線で覚える暗記カード vs ShadowMark

The clearest difference is ads: ShadowMark at none against moo ANKI｜忘却曲線で覚える暗記カード's shown. ShadowMark also leads on update cadence (every 8 days vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

moo ANKI｜忘却曲線で覚える暗記カード ships an update every 4 months, ShadowMark every 8 days. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | moo ANKI｜忘却曲線で覚える暗記カード | ShadowMark |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 11 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Tsubasa Sakamoto](https://appshunter.io/developer/1865950668) | [RYUTA SHIMOGAUCHI](https://appshunter.io/developer/6775823754) |

## What reviewers say

### moo ANKI｜忘却曲線で覚える暗記カード

[App page](https://appshunter.io/ios/app/moo-anki/id6757971165)

This app uses an input-based learning method where users write answers and compare them to model answers. It automatically adjusts review intervals based on a three-level understanding assessment, making it ideal for memorizing vocabulary and technical terms efficiently.

**Highlights:** Input-based learning, Compare answers to model solutions, Three-level understanding assessment, Automatic review scheduling, Supports descriptive questions

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

**In-app purchases:** none


### ShadowMark

[App page](https://appshunter.io/ios/app/shadowmark/id6775823482)

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

**In-app purchases:** none


## Frequently asked questions

### Is moo ANKI｜忘却曲線で覚える暗記カード free?

moo ANKI｜忘却曲線で覚える暗記カード is free to download, with no in-app purchases.

### Is ShadowMark free?

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

### Do moo ANKI｜忘却曲線で覚える暗記カード or ShadowMark have ads?

moo ANKI｜忘却曲線で覚える暗記カード shows ads; ShadowMark does not.

### Which is updated more often, moo ANKI｜忘却曲線で覚える暗記カード or ShadowMark?

moo ANKI｜忘却曲線で覚える暗記カード ships an update every 4 months, and ShadowMark every 8 days. Most recently, moo ANKI｜忘却曲線で覚える暗記カード was updated on October 10, 2026 and ShadowMark on October 1, 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.*