Crazy John vs Dozen
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Crazy John
Embark on a post-apocalyptic journey as a lone survivor fighting mutated zombies in underground tunnels. Upgrade weapons and stats, utilize power-ups, and battle bosses across eerie landscapes in a retro pixel art style.
- Creepy-cool pixel art style
- Unlimited levels
- Four eerie landscapes
- Full weapon upgrade system
- Full stat upgrade system
- Awesome power-ups and vehicles
- Crazy bosses
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*NOW FREE for a LIMITED TIME!* ZOMBIES roam the EARTH... HUMANITY takes REFUGE UNDERGROUND... ONE MAN makes a STAND... ▶▶▶ [2046] In the aftermath of total global nuclear warfare, humanity abandoned the surface of the earth, and relocated to a network of underground tunnels… Those few that remained above were contaminated by radioactive dust. The results were… horrifying… One man wasn't about to give up on the place he still called home. They called him crazy… Crazy John... ▶▶▶ • creepy-COOL pixel STYLE • UNLIMITED levels • 4 EERIE landscapes • FULL weapon UPGRADE sytem • FULL stat UPGRADE system • AWESOME power-ups and VEHICLES • FANTASTIC sound-track • CRAZY BOSSES! ▶▶▶ http://twitter.com/TRINITIgames http://facebook.com/TRINITIgames
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.
Screenshots
Verdict
The clearest difference is rating: Dozen at 4.9 against Crazy John's 3.8. Dozen also leads on in-app purchases (none vs 1) and review sentiment (97% vs 66%). Crazy John's advantage is update cadence (every 4 weeks vs every 5 months) and ratings volume (126 vs 21). On price, 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. Crazy John sells 1 one-off in-app purchase. Dozen asks for nothing beyond the download.
Dozen holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: Crazy John has 126 ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 66% of Crazy John's written reviews are positive against 97% of Dozen's.
Crazy John ships an update every 4 weeks, Dozen every 5 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.
| Parameter | Crazy John | Dozen |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (126 ratings) | 4.9 (21 ratings) — better |
| Positive reviews | 65.9% of reviews | 96.6% of reviews — better |
| Number of ratings | 126 — better | 21 |
| Update frequency | Every 4 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 3.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 27 MB | 29 MB |
| Age rating | 17+ | 17+ |
| Developer | Triniti Interactive Limited | Igor Fedorov |
Customer experience
Crazy John
Dozen
Bugs and requests
Crazy John
Reported bugs
3 issues- Incorrect coin/money rewards
- Crashes and freezes on certain devices
- Unresponsive controls at times
Requested features
5 requests- More enemy types and boss battles
- Multiplayer and co-op modes
- Expanded level and mission variety
- Character customization options
- Difficulty settings
Dozen
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Crazy John
- Crazy John $450K Pack$0.99
Dozen
No in-app purchases
