Comparison

Rex vs Crazy Kaiju

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

Head to head
About

Rex

Match three prehistoric creatures to evolve them into a more powerful form. Then, use your evolved dinosaurs to battle against another team in this strategic puzzle game.

Highlights
  • Match-3 evolution mechanic
  • Dinosaur-themed gameplay
  • Team-based battles
  • Strategic puzzle elements
  • Prehistoric creature evolution
Features
Read full description

Match 3 dinosaurs to create one and challenge an other team!

About

Crazy Kaiju

Control giant monsters and unleash destruction across a city. Utilize unique abilities to smash buildings, vehicles, and opponents. Compete in various modes to climb leaderboards and become the ultimate kaiju.

Highlights
  • Control giant monsters
  • Destroy buildings and vehicles
  • Fight other monsters
  • Multiple game modes (classic, arena, destroy)
  • Choose and upgrade monsters
  • Battle royale survival
Features
Read full description

Crazy Kaiju 3D is an addictive IO game in which you play as huge monsters destroying the city. Your task is to destroy all buildings and enemies using your unique abilities and strength. Climb to the top of the rankings and manage to create maximum destruction in the allotted time! Smash your opponents and become the biggest monster in town! Destroy everything in your path Your monster can destroy buildings, throw cars into the air, shoot down helicopters, and even fight other monsters. You need to use your abilities and tactics to win each level and become the real king of the city. Fight in different modes The game features several actual modes where you can truly unleash your inner kaiju! In classic mode, you have to defeat all your opponents. In arena mode - eat all your opponents and remain the only survivor of the royal battle. And in destroy mode you have to destroy the whole city in the allotted time. Choose what you like best and have fun together with your kaiju in this arcade game! Choose your monster There are several different monsters available in this IO game, each with their own strengths and weaknesses. Choose the one that suits you best and begin your destructive mission. Immerse yourself in the atmosphere of the apocalypse The graphics in the game are very colorful and detailed, and the sound effects and music create an atmosphere of real disaster. You'll enjoy every moment of the game as your monster destroys everything in its path. Game Features Choose your monster and upgrade it Fight in different modes Destroy the entire city to the ground Survive in a battle royal Immerse yourself in the post-apocalyptic atmosphere Crazy Kaiju 3D is a great IO game for those who love action and destruction. Be the biggest monster this city ever saw or smash all the surroundings in a time limit! Unlock every character and enjoy all the smooth animations If you want to feel like a real monster, this game is exactly for you. What are you waiting for? Download and play! And don't forget - this is just a game, so have fun!

Screenshots

Rex3 screens
Crazy Kaiju4 screens

Verdict

The call

The clearest difference is rating: Crazy Kaiju at 4.5 against Rex's 3.8. Crazy Kaiju also leads on ratings volume (1.8K vs 8). On price, review sentiment, update cadence and ads 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. Rex sells 11 one-off in-app purchases and Crazy Kaiju sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Crazy Kaiju holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Crazy Kaiju has 1.8K ratings behind it against 8, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on October 30, 2026.

Scorecard2 real differences · 8 level
Rex versus Crazy Kaiju: the parameters behind the verdict, then further details
ParameterRexCrazy Kaiju
PriceFreeFree
Rating3.8 (8 ratings)4.5 (1.8K ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings81.8K — better
Update frequencyEvery 3 monthsEvery 3 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size197 MB282 MB
Age rating4+4+
DeveloperYso CorpMAD PIXEL

Customer experience

Rex

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Crazy Kaiju

All ratings1,754 ratings
Positive89.2%
Neutral5.5%
Negative5.2%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

11 purchases

Rex

One-time11
  • Speed Pack$1.99
  • Remove Ads$2.99
  • MegaBrachio$3.99
Show 8 more
  • MegaSarco$3.99
  • MegaSpino$3.99
  • MegaRex$3.99
  • Speed Pack Plus$3.99
  • Pack MegaSarco$5.99
  • Pack MegaSpino$5.99
  • Pack MegaRex$5.99
  • Master Pack$17.99
1 purchases

Crazy Kaiju

One-time1
  • ADS FREE$2.99

Questions

Is Rex free?
Rex is free to download, with in-app purchases available.
Is Crazy Kaiju free?
Crazy Kaiju is free to download, with in-app purchases available.
Which has better reviews, Rex or Crazy Kaiju?
Crazy Kaiju is rated higher. Rex averages 3.8 out of 5 from 8 ratings, while Crazy Kaiju averages 4.5 from 1.8K ratings.
Do Rex or Crazy Kaiju have ads?
Both Rex and Crazy Kaiju show ads.
Which is updated more often, Rex or Crazy Kaiju?
Rex ships an update every 3 months, and Crazy Kaiju every 3 months. Most recently, Rex was updated on October 30, 2026 and Crazy Kaiju on October 30, 2026.

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