# Letter Jam! vs Stack Merge

Letter Jam! and Stack Merge are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Letter Jam! ships an update every 3 weeks, Stack Merge every 2 weeks. The most recent releases landed on October 4, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Letter Jam! | Stack Merge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 95 MB | 103 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Can Hulagu](https://appshunter.io/developer/1629006728) | [Rasel Hossain](https://appshunter.io/developer/1474211749) |

## What reviewers say

### Letter Jam!

[App page](https://appshunter.io/ios/app/letter-jam/id6477922296)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack Merge

[App page](https://appshunter.io/ios/app/stack-merge/id6478578678)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Letter Jam! free?

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

### Is Stack Merge free?

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

### Do Letter Jam! or Stack Merge have ads?

Both Letter Jam! and Stack Merge show ads.

### Which is updated more often, Letter Jam! or Stack Merge?

Letter Jam! ships an update every 3 weeks, and Stack Merge every 2 weeks. Most recently, Letter Jam! was updated on October 4, 2026 and Stack Merge on September 24, 2026.

---

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