# Quick Math Jam vs 19×19

The clearest difference is price: Quick Math Jam at Free against 19×19's $2.99. 19×19's advantage is in-app purchases (none vs 3) and update cadence (every 9 days vs every 3 weeks). On ads, device support and iOS requirement there is nothing between them.

Quick Math Jam is free to download; 19×19 costs $2.99 up front. Quick Math Jam sells 3 in-app purchases, starting at $0.99 per month. 19×19 asks for nothing beyond the download.

Quick Math Jam ships an update every 3 weeks, 19×19 every 9 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Quick Math Jam | 19×19 |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 44 MB | 7 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Guizhou Vanilla Information Technology Co., Ltd.](https://appshunter.io/developer/1870144710) | [JINGZHE JIANG](https://appshunter.io/developer/1888097689) |

## What reviewers say

### Quick Math Jam

[App page](https://appshunter.io/ios/app/quick-math-jam/id6789366751)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QuickMath Pro Monthly | $0.99 | per month |
| QuickMath Pro Annual | $5.99 | per year |
| QuickMath Pro Lifetime | $12.99 | one-time |


### 19×19

[App page](https://appshunter.io/ios/app/1919/id6815097266)

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

**In-app purchases:** none


## Frequently asked questions

### Is Quick Math Jam free?

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

### Is 19×19 free?

19×19 costs $2.99, with no in-app purchases.

### Do Quick Math Jam or 19×19 have ads?

Neither Quick Math Jam nor 19×19 shows ads.

### Which is updated more often, Quick Math Jam or 19×19?

Quick Math Jam ships an update every 3 weeks, and 19×19 every 9 days. Most recently, Quick Math Jam was updated on October 28, 2026 and 19×19 on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*