# TeXmemo vs 数学図鑑

The clearest difference is in-app purchases: TeXmemo at none against 数学図鑑's 2. TeXmemo also leads on update cadence (daily vs every 2 weeks) and device support (3 vs 1). 数学図鑑's advantage is review sentiment (100% vs 67%). On price and ads there is nothing between them.

Both are free to download. 数学図鑑 sells 2 one-off in-app purchases. TeXmemo asks for nothing beyond the download.

TeXmemo ships an update daily, 数学図鑑 every 2 weeks. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | TeXmemo | 数学図鑑 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 12 MB | 149 MB |
| Requires iOS | **14.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Joonha Kwon](https://appshunter.io/developer/1495592559) | [Keisuke Minami](https://appshunter.io/developer/1719444621) |

## What reviewers say

### TeXmemo

[App page](https://appshunter.io/ios/app/texmemo/id1544196945)

This simple note-taking app allows users to beautifully tweet text containing mathematical formulas. It automatically adds margins for clear visibility of equations on timelines.

**Highlights:** Tweet text with math formulas, Automatic margin addition, Clear equation display on timelines, Simple note-taking interface

**Features:** macOS Compatibility

**In-app purchases:** none


### 数学図鑑

[App page](https://appshunter.io/ios/app/id6499109813)

This app uses animations and dynamic visuals to explain complex high school math concepts. It aims to make abstract ideas intuitive and engaging for students and educators alike. Explore calculus, geometry, and equations through visual learning.

**Highlights:** Animated explanations of math concepts, Dynamic visual representations, Covers calculus, geometry, and equations, Intuitive understanding of abstract ideas, Aids students and educators

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告の削除 | $1.99 | one-time |
| 広告の削除+開発者への支援 | $2.99 | one-time |


## Frequently asked questions

### Is TeXmemo free?

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

### Is 数学図鑑 free?

数学図鑑 is free to download, with in-app purchases available.

### Do TeXmemo or 数学図鑑 have ads?

Both TeXmemo and 数学図鑑 show ads.

### Which is updated more often, TeXmemo or 数学図鑑?

TeXmemo ships an update daily, and 数学図鑑 every 2 weeks. Most recently, TeXmemo was updated on October 4, 2026 and 数学図鑑 on October 8, 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.*