# Card Master vs TapTap Keys

The clearest difference is in-app purchases: Card Master at none against TapTap Keys's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TapTap Keys sells 1 one-off in-app purchase. Card Master asks for nothing beyond the download.

## The numbers

| Metric | Card Master | TapTap Keys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/card-master/id6739202007/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 22 MB | 4 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [秀娟 牛](https://appshunter.io/developer/1094634955) | [绪 张](https://appshunter.io/developer/1887860893) |

## What reviewers say

### Card Master

[App page](https://appshunter.io/ios/app/card-master/id6739202007)

This intelligent learning assistant uses a scientific memory algorithm based on the forgetting curve model to schedule personalized review sessions. It supports rich media notes, LaTeX, and code blocks, making it ideal for students, language learners, and professionals.

**Highlights:** Scientific memory algorithm (SM2), Personalized review scheduling, Import Anki files (.apkg), Multi-dimensional note management, Rich media support (images, audio, video), LaTeX equation editor, Code highlighting

**Features:** macOS Compatibility

**In-app purchases:** none


### TapTap Keys

[App page](https://appshunter.io/ios/app/taptap-keys/id6761337452)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rhythm Guide Pro | $0.99 | one-time |


## Frequently asked questions

### Is Card Master free?

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

### Is TapTap Keys free?

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

### Do Card Master or TapTap Keys have ads?

Neither Card Master nor TapTap Keys shows ads.

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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.*