Comparison

Ah! Monster vs ForbiddenEgg

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

Head to head
About

Ah! Monster

Discover and collect a variety of mysterious, funny monsters by strategically using different perfumes. Earn coins and eggs by interacting with monsters to upgrade perfumes and develop new ones, luring even rarer creatures. The ultimate goal is to encounter and catalog every unique monster.

Highlights
  • Attract monsters with perfumes
  • Collect coins and eggs
  • Upgrade perfume levels
  • Develop new perfumes
  • Discover and catalog monsters
  • Time-based monster appearances
Features
Read full description

Wow! There are weird monsters!!!! Mysterious monsters living in a mysterious world. What were they born for? What do they live for? Still, no one knows. . . ------- About this world ------- Somehow, a mysterious perfume ball is hanging from the sky. And mysterious monsters who prefer the perfume come together. There are many kinds of perfume ball. There are monsters that prefer each perfume. Perfumes have their own level, and you can raise the level. As the level of perfume rises, more unusual monsters will come together. What you need to raise the level of perfumes are coins. Coins can be obtained by touching and destroying mysterious monsters. You can develop new perfumes. If you want to develop new perfumes, you need to gather eggs that are necessary materials for development. Eggs can be obtained by touching and destroying mysterious monsters. You already understand? To know this world deeply, you should repeat the process below. 1. Hanging a perfume. 2. Get coins and eggs from mysterious monsters. 3. Raise the level of perfume with coins, and develop new perfumes with eggs. 4. Change a perfume and lure new monsters. By repeating these, you can encounter more and more unknown monsters. There are many monsters in this world. It is the purpose of this game to meet all monsters and reveal all the collections. The secret of each monsters is stated on the collections. Now, from today you are a resident of this mysterious world. Please do not return to the original world until you know everything. Here we go! ■ TIPS 1 The point to advance the game is to develop new perfumes. Check the "Develop perfume" menu in advance, and know the types of egg to be required for development. ■ TIPS 2 If you touch a image of monster on the collections, you can see the information of monsters. There is a description about the monster appearance time zone. This means that some monsters only appear at a certain time! The time is linked with the real world, and the color of sky changes with time! ■ TIPS 3 When a perfume level is maximized (Lv.6), something weird will happen!

About

ForbiddenEgg

Help an egg named Toshio become a handsome man and achieve his dream of getting a girlfriend. Tap to collect roses, which are used to gradually transform the egg into a more attractive individual. It's a simple, casual game perfect for short bursts of play.

Highlights
  • Transform an egg into a handsome man
  • Collect roses to increase handsomeness
  • Simple tap-to-play mechanics
  • Casual gameplay for free moments
  • Help Toshio get a girlfriend
Features
Read full description

My name is Toshio. My dream is to get a girlfriend. Please help me become a handsome guy! [Game Description] This is an app where you turn an egg into a handsome guy! Collect roses and gradually make your egg more and more handsome. ■ How to Play ■ Tap to collect roses and raise your egg into a handsome guy. That's all! A simple game you can enjoy anytime in your free moments.

Screenshots

Ah! Monster4 screens
ForbiddenEgg4 screens

Verdict

The call

The clearest difference is update cadence: Ah! Monster at every 5 months against ForbiddenEgg's every 20 months. Ah! Monster also leads on review sentiment (85% vs 73%). ForbiddenEgg's advantage is monetization model (ad-supported vs free with in-app purchases) and iOS requirement (12.0 vs 15.0). On price, rating, ratings volume 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. 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 Ah! Monster against 4.8 for ForbiddenEgg. Both are backed by a comparable volume of ratings — 15 and 42 respectively. Written reviews are what separate them: 85% of Ah! Monster's written reviews are positive against 73% of ForbiddenEgg's.

UpkeepUpdate frequency

Ah! Monster ships an update every 5 months, ForbiddenEgg every 20 months. The most recent releases landed on August 31, 2026 and September 22, 2026 respectively.

Scorecard4 real differences · 6 level
Ah! Monster versus ForbiddenEgg: the parameters behind the verdict, then further details
ParameterAh! MonsterForbiddenEgg
PriceFreeFree
Rating4.9 (15 ratings) — better4.8 (42 ratings)
Positive reviews84.7% of reviews — better72.6% of reviews
Number of ratings1542 — better
Update frequencyEvery 5 months — betterEvery 20 months
AdsYesYes
In-app purchasesNoNo
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size45 MB45 MB
Age rating4+12+
DeveloperKAZUYA KAMIOKAOMOSHIRO KAKUMEI CAPSULE PLUS, K.K.

Customer experience

Ah! Monster

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews85 reviews
Positive84.7%
Neutral4.7%
Negative10.6%

ForbiddenEgg

All ratings42 ratings
Positive95.2%
Neutral0.0%
Negative4.8%
Written reviews84 reviews
Positive72.6%
Neutral7.1%
Negative20.2%

In-app purchases

None

Ah! Monster

No in-app purchases

None

ForbiddenEgg

No in-app purchases

Questions

Is Ah! Monster free?
Ah! Monster is free to download, with no in-app purchases.
Is ForbiddenEgg free?
ForbiddenEgg is free to download, with no in-app purchases.
Which has better reviews, Ah! Monster or ForbiddenEgg?
Ah! Monster is rated higher. Ah! Monster averages 4.9 out of 5 from 15 ratings, while ForbiddenEgg averages 4.8 from 42 ratings.
Do Ah! Monster or ForbiddenEgg have ads?
Both Ah! Monster and ForbiddenEgg show ads.
Which is updated more often, Ah! Monster or ForbiddenEgg?
Ah! Monster ships an update every 5 months, and ForbiddenEgg every 20 months. Most recently, Ah! Monster was updated on August 31, 2026 and ForbiddenEgg on September 22, 2026.

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