Dozen vs Ominomicon
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Dozen
A challenging memory card game where you compete against your iPhone to test and improve your memorization skills. Flip cards, match pairs, and score points before the device outmaneuvers you. Engage in fast-paced, addictive gameplay anytime, anywhere.
- Memory card game
- Compete against iPhone
- Memorize card locations
- Score pairing points
- Fast-paced gameplay
- Sharpen memory
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Dozen is a new kind of memory card game, one in which you play against the iPhone© to prove your memorizing abilities. Flip cards, memorize their locations, and score pairing points before the iPhone© beats you to it. Challenge your mind, sharpen your memory, and engage in fast-paced gameplay that is addictive, right from your pocket. Take Dozen with you wherever you go, pairing off cards as you race against your iPhone©. It’s a great way to travel, unwind after a long day, or simply take a break from the work or studying at hand.
Ominomicon
A unique falling-block puzzle game that blends roguelite elements with score-attack gameplay. Collect data fragments to purchase cursed relic cards that alter gameplay, and adapt to increasingly challenging and unpredictable piece selections and board mechanics.
- Roguelite score-attack gameplay
- Cursed relic cards to bend rules
- Hand survives death, board resets
- Unstable gravity with inverted fields
- 29 unique block shapes
- Global leaderboards
- One-thumb portrait controls
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Stranger, not faster. Blocks fall. Lines clear. You already know this game - until the bag starts changing. Every cleared row earns credits, and credits buy cursed relic-cards that bend the rules of the game itself. Your hand of relics survives death; only the board resets. (That's the roguelite part.) Most block games get harder by speeding up. Ominomicon gets harder by changing what falls: every level introduces a stranger piece and quietly retires a familiar one. By the deep game you're stacking nothing but pentominoes - on a board that periodically flips upside down. FREE TO PLAY, PROPERLY The free version is a complete game: 12 of the 20 relic-cards, every mechanic, endless runs, global leaderboards One small purchase unlocks all 20 cards, forever - shareable with your family No ads, no subscriptions, no energy timers, nothing consumable. Ever. THE RULES ARE FOR SALE 20 relic-cards: bombs, second holds, bag exorcisms, time running backwards Exclusive pairs force real choices - no two runs build alike Your hand carries through death; only the board resets UNSTABLE GRAVITY Every minute or so, gravity inverts and pieces fall upward The power grid flickers just before it hits - learn to read the lights Counter it with Gravitonics or ride it with Surge Rider for a triple score multiplier A ROSTER, NOT A SPEEDOMETER 29 shapes: from the humble monomino to the full pentomino bestiary Level 1 gives you twelve friendly pieces; the endgame is eighteen pentominoes only Speed only climbs after the roster finishes mutating POLISHED TO THE LAST PIXEL Global leaderboards via Game Center - all-time and weekly, every score cryptographically sealed Dark synthwave soundtrack; the board glows on the beat One-thumb portrait controls with haptic feedback Every visual effect - flicker, shake, glow - is adjustable or can be turned off entirely No tracking. Fully playable offline, always. Free to try. One purchase to own. Play forever.
Screenshots
Verdict
The clearest difference is in-app purchases: Dozen at none against Ominomicon's 1. Dozen also leads on ratings volume (21 vs 2) and iOS requirement (15.0 vs 18.0). Ominomicon's advantage is update cadence (every 3 weeks vs every 5 months). On price, rating, ads 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. Ominomicon sells 1 one-off in-app purchase. Dozen asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Dozen against 5.0 for Ominomicon. That said, the two scores are not equally well evidenced: Dozen has 21 ratings behind it against 2, so its average is the more settled of the two.
Dozen ships an update every 5 months, Ominomicon every 3 weeks. Both last shipped on October 25, 2026.
| Parameter | Dozen | Ominomicon |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (21 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 96.6% of reviews | — |
| Number of ratings | 21 — better | 2 |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 29 MB | 5 MB |
| Age rating | 17+ | 4+ |
| Developer | Igor Fedorov | Christopher Douglas Reynolds |
Customer experience
Dozen
Ominomicon
In-app purchases
Dozen
No in-app purchases
Ominomicon
- Unlock All Cards$0.99









