# Letter Jam! vs Doublets

The clearest difference is in-app purchases: Letter Jam! at none against Doublets's 3. Letter Jam! also leads on update cadence (every 3 weeks vs every 9 months) and iOS requirement (12.0 vs 17.0). Doublets's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Doublets sells 3 in-app purchases, starting at $0.99 per month. Letter Jam! asks for nothing beyond the download.

Letter Jam! ships an update every 3 weeks, Doublets every 9 months. The most recent releases landed on October 4, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Letter Jam! | Doublets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/doublets/id6737807177/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Monetization | — | Freemium |
| Size | 95 MB | 11 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Can Hulagu](https://appshunter.io/developer/1629006728) | [Thomas DiZoglio](https://appshunter.io/developer/1672699438) |

## What reviewers say

### Letter Jam!

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Doublets

[App page](https://appshunter.io/ios/app/doublets/id6737807177)

A word puzzle game where you transform one word into another by changing one letter at a time. Each step must result in a valid dictionary word, following the rules of the classic word ladder game.

**Highlights:** Word ladder gameplay, Change one letter at a time, Valid dictionary words, Classic word puzzle, Single-player game

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Doublets Monthly Subscription | $0.99 | per month |
| Doublets Yearly Subscription | $9.99 | per year |
| Doublets Free Download | Free | one-time |


## Frequently asked questions

### Is Letter Jam! free?

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

### Is Doublets free?

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

### Do Letter Jam! or Doublets have ads?

Letter Jam! shows ads; Doublets does not.

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

Letter Jam! ships an update every 3 weeks, and Doublets every 9 months. Most recently, Letter Jam! was updated on October 4, 2026 and Doublets on October 21, 2026.

---

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