# Grammar Master by ChatStick vs Numbat Math

The clearest difference is ads: Numbat Math at none against Grammar Master by ChatStick's shown. Numbat Math also leads on update cadence (every 2 weeks vs every 7 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Grammar Master by ChatStick sells 1 one-off in-app purchase and Numbat Math sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Grammar Master by ChatStick ships an update every 7 months, Numbat Math every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Grammar Master by ChatStick | Numbat Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/numbat-math/id6770681401/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 4 MB |
| Requires iOS | 18.4 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) | [Numbat Math](https://appshunter.io/developer/1896760813) |

## What reviewers say

### Grammar Master by ChatStick

[App page](https://appshunter.io/ios/app/grammar-master-by-chatstick/id6751647833)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Feature | $2.99 | one-time |


### Numbat Math

[App page](https://appshunter.io/ios/app/numbat-math/id6770681401)

This app helps students in grades 3-5 maintain their math skills over the summer break with short, engaging daily practice sessions. It focuses on areas where students struggle, offering step-by-step guidance instead of just answers.

**Highlights:** 10-minute daily math sessions, Adaptive learning engine, Human-verified math problems, Step-by-step guidance for errors, Common Core aligned curriculum, Parent-managed accounts, Progress tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Annual | $74.99 | per year |
| Summer Pass 2026 | $29.99 | one-time |


## Frequently asked questions

### Is Grammar Master by ChatStick free?

Grammar Master by ChatStick is free to download, with in-app purchases available.

### Is Numbat Math free?

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

### Do Grammar Master by ChatStick or Numbat Math have ads?

Grammar Master by ChatStick shows ads; Numbat Math does not.

### Which is updated more often, Grammar Master by ChatStick or Numbat Math?

Grammar Master by ChatStick ships an update every 7 months, and Numbat Math every 2 weeks. Most recently, Grammar Master by ChatStick was updated on November 3, 2026 and Numbat Math on October 31, 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.*