# Back To School Doing Math vs Mochj Cat

The clearest difference is price: Mochj Cat at Free against Back To School Doing Math's $0.99. Mochj Cat also leads on update cadence (every 2 months vs every 35 months). Back To School Doing Math's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On ads and device support there is nothing between them.

Mochj Cat is free to download; Back To School Doing Math costs $0.99 up front. Mochj Cat sells 2 one-off in-app purchases. Back To School Doing Math asks for nothing beyond the download.

Back To School Doing Math ships an update every 35 months, Mochj Cat every 2 months. The most recent releases landed on September 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Back To School Doing Math | Mochj Cat |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.8 (6.5K ratings)](https://appshunter.io/ios/app/mochj-cat/id1472463488/reviews)** |
| Number of ratings | — | **6.5K** |
| Positive reviews | — | 88.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 35 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 66 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Tobisch](https://appshunter.io/developer/841681922) | [Luu Thi Tuyet Minh](https://appshunter.io/developer/1406224933) |

## What reviewers say

### Back To School Doing Math

[App page](https://appshunter.io/ios/app/back-to-school-doing-math/id1432687947)

**In-app purchases:** none


### Mochj Cat

[App page](https://appshunter.io/ios/app/mochj-cat/id1472463488)

Enhance your iMessage conversations with a collection of adorable animated stickers. Express your emotions vividly with 168 unique, high-quality designs. A portion of the stickers are free, with the full set available for purchase.

**Highlights:** 168 animated stickers, Cute cat character, Enhances iMessage conversations, Expresses emotions, High-quality designs, Free sticker set available

**Features:** Family Sharing, iMessage stickers

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mochi Cat Donation Pack | $0.99 | one-time |
| Mochi Peach Cat Full Pack | $1.49 | one-time |

**What reviewers like**

- 💕 Cute and adorable stickers
- 👍 Variety of free stickers
- 🥰 Expressive and animated stickers
- 💰 Affordable paid upgrade
- 🤩 Stickers make conversations fun

**What reviewers complain about**

- 💰 Many cute stickers locked behind paywall
- 🔍 Difficult to find specific stickers
- 🗂️ Lack of organization/categorization for stickers

**Reported bugs**

- Compatibility issues with iOS 18
- Difficulty deleting the app

**Requested features**

- Add more free stickers
- Implement search functionality
- Improve organization of sticker categories
- Expand to other messaging platforms
- Add more animal characters (e.g. dogs, bunnies)


## Frequently asked questions

### Is Back To School Doing Math free?

Back To School Doing Math costs $0.99, with no in-app purchases.

### Is Mochj Cat free?

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

### Do Back To School Doing Math or Mochj Cat have ads?

Neither Back To School Doing Math nor Mochj Cat shows ads.

### Which is updated more often, Back To School Doing Math or Mochj Cat?

Back To School Doing Math ships an update every 35 months, and Mochj Cat every 2 months. Most recently, Back To School Doing Math was updated on September 23, 2026 and Mochj Cat on October 20, 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.*