# Unlock Jam vs Mathstack

The clearest difference is in-app purchases: Unlock Jam at none against Mathstack's 3. Unlock Jam also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Mathstack sells 3 in-app purchases, starting at $1.99 per 7 days. Unlock Jam asks for nothing beyond the download.

## The numbers

| Metric | Unlock Jam | Mathstack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mathstack-sequence-puzzle/id6748113494/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 11 days |
| Monetization | — | Free with in-app purchases |
| Size | 114 MB | 31 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Mehmet Fatih Sahin](https://appshunter.io/developer/1700697055) | [Hazerim Interactive Entertainment, UAB](https://appshunter.io/developer/1804702752) |

## What reviewers say

### Unlock Jam

[App page](https://appshunter.io/ios/app/unlock-jam/id6566186181)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mathstack

[App page](https://appshunter.io/ios/app/mathstack-sequence-puzzle/id6748113494)

A unique number puzzle game where you stack cards to form sequences. Strategically use temporary slots to clear the board and uncover hidden cards. Offers three difficulty levels for a tailored challenge.

**Highlights:** Sequence building gameplay, Strategic card stacking, Temporary slot management, Three difficulty levels, Uncover hidden cards

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads (Weekly) | $1.99 | per 7 days |
| No Ads (Monthly) | $5.99 | per month |
| No Ads (Lifetime) | $19.99 | one-time |


## Frequently asked questions

### Is Unlock Jam free?

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

### Is Mathstack free?

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

### Do Unlock Jam or Mathstack have ads?

Both Unlock Jam and Mathstack show 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.*