Letter Jam! vs Doublets
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Letter Jam!
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Embark on a brain-teasing journey with a physics-based word challenge! Strategically remove screws to unveil letters and construct words on the bench. Choose screws and letters in a right order to clean the board and create words to complete the levels. Test yourself with amazing brain teaser!
Doublets
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.
- Word ladder gameplay
- Change one letter at a time
- Valid dictionary words
- Classic word puzzle
- Single-player game
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Doublets (also known as word ladder) is a word puzzle game invented by Lewis Carroll where the objective is to turn one dictionary word into another by changing one letter at a time. At each step, one letter may be changed, and the resulting word must be a valid dictionary word. Terms of Service: https://virgilsoftware.com/terms-and-conditions
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Letter Jam! | Doublets |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 3 weeks — better | Every 9 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 95 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Can Hulagu | Thomas DiZoglio |
In-app purchases
Letter Jam!
No in-app purchases
Doublets
- Doublets Monthly Subscription$0.991 Month
- Doublets Yearly Subscription$9.991 Year
- Doublets Free DownloadFree
