DuoDom vs Shelf Jam
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
DuoDom
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DuoDom — the laid-back sliding puzzle in pixel-art retro style. A board fills with stones marked 1 to 6. Slide them across the empty squares so that two matching stones land right next to each other — they vanish as a pair. Clear the whole board to win. HOW TO PLAY • Tap a stone to select it. • Tap an empty neighbouring square to slide the stone there. • When two matching stones meet edge to edge, they disappear. • Clear the entire board — level done. Every puzzle is guaranteed solvable — a built-in solver verifies each level before you see it. No frustration, no dead ends. FEATURES • Hundreds of solver-checked puzzles • Pixel-art graphics in lovingly crafted retro style • Smooth animations at 60 FPS • Per-level highscores — how few moves can you do it in? • Trophy system for special achievements • Built-in tutorial • Pause with settings for volume and language • Synthesized sound effects straight from the game • Works in any screen size, portrait and landscape 20 LANGUAGES DuoDom auto-detects your device language and lets you switch live anytime: Deutsch, English, Français, Español, Italiano, Português, Nederlands, Polski, Čeština, Slovenčina, Magyar, Română, Türkçe, Русский, Українська, Ελληνικά, Svenska, Dansk, 日本語, 中文. Perfect for a coffee break, a train ride, or winding down after work. Slide, combine, win. DuoDom — side by side, gone for good.
Shelf Jam
Engage in a relaxing triple-match sorting puzzle set in a grocery store. Organize products on shelves, serve customers, and clear the store by matching three identical items. Navigate limited belt space and customer patience to complete challenging levels.
- Triple-match sorting gameplay
- Grocery store theme
- 120 challenging levels
- Customer order system
- Combo multipliers
- Offline play
- Boosters and daily bonuses
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Sort the shelves, serve the customers, clear the whole store. Shelf Jam is a relaxing triple-match sorting puzzle set in a busy little grocery store. Tap a product on the shelf and it slides onto the belt. Line up three of a kind and they pop. Sounds easy — until you notice that products hide behind one another, the belt only has five slots, and two customers are waiting at the counter with their patience running out. HOW TO PLAY • Tap any product on the front row to send it to the belt • Three identical products on the belt clear instantly • Products hide behind each other — take the front one to reveal the next • The belt has only 5 slots: fill it with no match and the level is over • Empty the whole shelf to complete the level FEATURES • 120 levels — the first 24 hand-tuned, then the difficulty keeps climbing • Every board is verified solvable before you ever see it • Combo multiplier: keep matching fast and score up to 5x • Customer orders with a patience timer — serve them for bonus coins • Star goals per level: finish it, beat the par time, complete the orders • 4 boosters: undo, hint, shuffle and an extra belt slot • Daily bonus streak, plus a high score and a personal time record per level • 14 hand-drawn products: bottles, jars, cans, chips, cupcakes and more • Puzzle levels play without a network connection — no account, no lives, no waiting between levels. Ads and optional purchases need a connection • 28 languages with full right-to-left support Whether you have thirty seconds in a queue or half an hour on the sofa, one shelf is always worth clearing. Contains ads. Optional in-app purchases for coins and an ad-free experience.
Screenshots
Verdict
The clearest difference is in-app purchases: DuoDom at none against Shelf Jam's 5. Shelf Jam's advantage is update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement 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. Shelf Jam sells 5 one-off in-app purchases. DuoDom asks for nothing beyond the download.
DuoDom ships an update monthly, Shelf Jam every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | DuoDom | Shelf Jam |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 1 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Josef Sejrek | Caymaz Soft |
In-app purchases
DuoDom
No in-app purchases
Shelf Jam
- 500 Coins$0.99
- Starter Pack$1.99
- 1,500 Coins$2.99
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- Remove Ads$3.99
- 4,000 Coins$6.99









