# Dozen vs UFO Annihilator

The clearest difference is monetization model: Dozen at free against UFO Annihilator's paid. Dozen also leads on ads (none vs shown) and ratings volume (21 vs 1). UFO Annihilator's advantage is update cadence (every 6 days vs every 5 months). On price, rating, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for Dozen against 5.0 for UFO Annihilator. That said, the two scores are not equally well evidenced: Dozen has 21 ratings behind it against 1, so its average is the more settled of the two.

Dozen ships an update every 5 months, UFO Annihilator every 6 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Dozen | UFO Annihilator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (21 ratings)](https://appshunter.io/ios/app/dozen-memory-game/id1520158240/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ufo-annihilator/id6462839340/reviews)** |
| Number of ratings | **21** | 1 |
| Positive reviews | 96.6% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | **Free** | Paid |
| Size | 29 MB | 34 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 9+ |
| Developer | [Igor Fedorov](https://appshunter.io/developer/1520158242) | [Linda Felgenhauer](https://appshunter.io/developer/1702957400) |

## What reviewers say

### Dozen

[App page](https://appshunter.io/ios/app/dozen-memory-game/id1520158240)

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.

**Highlights:** Memory card game, Compete against iPhone, Memorize card locations, Score pairing points, Fast-paced gameplay, Sharpen memory

**Features:** macOS Compatibility

**In-app purchases:** none


### UFO Annihilator

[App page](https://appshunter.io/ios/app/ufo-annihilator/id6462839340)

Blast through waves of alien spaceships in a timed challenge. Compete against your own high scores and climb the leaderboards to become the ultimate space invader. Experience intense galactic combat.

**Highlights:** Space-blasting frenzy, Obliterate spaceships, Timed challenges, High score tracking, Leaderboard competition

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

**In-app purchases:** none


## Frequently asked questions

### Is Dozen free?

Dozen is free to download, with no in-app purchases.

### Is UFO Annihilator free?

UFO Annihilator is free to download, with no in-app purchases.

### Which has better reviews, Dozen or UFO Annihilator?

UFO Annihilator is rated higher. Dozen averages 4.9 out of 5 from 21 ratings, while UFO Annihilator averages 5.0 from 1 ratings.

### Do Dozen or UFO Annihilator have ads?

UFO Annihilator shows ads; Dozen does not.

### Which is updated more often, Dozen or UFO Annihilator?

Dozen ships an update every 5 months, and UFO Annihilator every 6 days. Most recently, Dozen was updated on October 25, 2026 and UFO Annihilator on October 24, 2026.

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