Comparison

Dozen vs UFO Annihilator

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Memory card game
  • Compete against iPhone
  • Memorize card locations
  • Score pairing points
  • Fast-paced gameplay
  • Sharpen memory
Features
Read full description

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.

About

UFO Annihilator

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
Read full description

Aliens are invading! Tap fast, think faster, and blast them out of the sky! UFO Annihilator is a fast-paced arcade shooter where every second counts. Take down waves of incoming UFOs, chain together explosive combos, and race the clock across four increasingly brutal levels before facing down a boss battle finale. HOW TO PLAY Tap UFOs to destroy them and rack up points Grab the blue clock for bonus time, but watch out for the red one! Drop a bomb to clear the skies around you Deploy an auto-firing turret to thin the swarm Freeze the action with an ice cube when things get too hectic ARMORED ENEMIES As your score climbs, tougher UFOs start showing up: tinted orange, red, and (rarely) purple. The brighter the color, the more hits it takes to bring it down. Keep tapping! FOUR LEVELS + A BOSS BATTLE Survive Level 1 through Level 4, each wave faster and more relentless than the last, then take on the Boss Battle. Chip its health bar down to zero to win. Chase your high score across every run Simple one-tap controls, endless replayability A quick in-game tutorial gets you playing in seconds UFO Annihilator is free to play and supported by ads between levels. Prefer an uninterrupted run? A one-time purchase removes ads completely. Ready to defend the skies? Download now and start annihilating.

Screenshots

Dozen2 screens
UFO Annihilator3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Dozen versus UFO Annihilator: the parameters behind the verdict, then further details
ParameterDozenUFO Annihilator
PriceFreeFree
Rating4.9 (21 ratings)5.0 (1 ratings) — better
Positive reviews96.6% of reviews—
Number of ratings21 — better1
Update frequencyEvery 5 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size29 MB34 MB
Age rating17+9+
DeveloperIgor FedorovLinda Felgenhauer

Customer experience

Dozen

All ratings21 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews29 reviews
Positive96.6%
Neutral0.0%
Negative3.4%

UFO Annihilator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Dozen

No in-app purchases

None

UFO Annihilator

No in-app purchases

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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