Comparison

Calculator Quest vs Monster Feeder

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

Head to head
About

Calculator Quest

This app merges a functional calculator with role-playing game elements. It offers a "Calc mode" for standard calculations, a fast-typing number game, and a mental arithmetic challenge.

Highlights
  • Standard calculator functionality
  • Fast-typing number game
  • Mental arithmetic time attack
  • RPG elements
Features
Read full description

A calculator and an RPG combine to form a miraculous hybrid! Includes bonus quick-typing game and math game! ※Rest assured, this app also works as a calculator. - Use for regular calculator operations! Calc mode! - Type the numbers and symbols as fast as you can! Quickdraw Colosseum! - Try your hand at the “mental arithmetic” time attack mode in Mental Math Kingdom!

About

Monster Feeder

Feed hungry monsters by giving them the correct food in this fast-paced arcade game. Unlock new monsters and themes as you climb the leaderboards and share your achievements. Enjoy retro graphics and simple one-handed controls.

Highlights
  • Feed carnivorous and herbivorous monsters
  • Unlockable monsters and themes
  • Leaderboards and achievements
  • Retro-style graphics
  • Simple one-handed controls
  • Social media sharing
Features
Read full description

-==THE COOLEST INSTANT GAME ON THE APP STORE==- Ever wanted to feed hungry monsters? Here’s your chance! Monster Feeder is an old-school arcade style casual game. Become a Monster Feeder and feed your monsters with fresh meat and vegetables! Unlock awesome themes and famous-like monsters, then go up to the top of the leaderboard and share your success on the net. "10/10 would play again" [Wouldplayagain129745] "Great, fast-paced addiction." [Connor Smith] "Fun, addictive gameplay" [Lollpplppolofat] Monster Feeder grants instant fun while it is packed with more than a dozen monsters, a fistful of themes, a couple of leaderboards, several achievements and who knows how many hours of fun! Don’t let your monsters starve! "A+ SINCE THE UPDATE!" [by Fwymommy] "Grand" [Punkylass] "Addicting and fun" [Lillybobbob] Monster Feeder is available as a FREE download. Contents: - Retro-style pixellated graphics and chiptune soundtrack - 22 unlockable monsters - 7 themes - 23 achievements - Game Center support (leaderboards & achievements) - Social media support (facebook, twitter, youtube) Monster Feeder explained: The player takes the role of a Monster Feeder, who's task is to feed his monsters with the appropriate food: meat for the carnivorous, and vegetables for the herbivorous. The task is simple, but the challenge is high due to the random order of meal and urgent time limit. The game rewards both one time success and long-term engagement as extras can be unlocked based upon top & total scores. Users can unlock more than a dozen famous-like monsters and new themes as they progress through the game. Every result can be shared through the usual social network channels like facebook, twitter and youtube. There are leaderboards and achievements as well via Game Center. Ads can be disabled and contents can be unlocked with in-app purchases. It's a quick fix game which can be enjoyed in really short bursts as one session could last for a couple of seconds. The controls are extremely simple as the game mechanic needs only swiping and this can be achieved with one hand too. So it's ideal for all kinds of mobile players on the go. Monster Feeder is a cool instant game featuring pop-cultural references, superfast-paced gameplay and retro-themed presentation.

Screenshots

Calculator Quest4 screens
Monster Feeder4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator Quest at none against Monster Feeder's 3. Monster Feeder's advantage is ads (none vs shown) and rating (4.6 vs 4.1). On price 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. Monster Feeder sells 3 one-off in-app purchases. Calculator Quest asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Monster Feeder holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: Monster Feeder has 223 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 72% of Calculator Quest's written reviews are positive against 91% of Monster Feeder's.

UpkeepUpdate frequency

Calculator Quest ships an update every 4 months, Monster Feeder every 4 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard8 real differences · 2 level
Calculator Quest versus Monster Feeder: the parameters behind the verdict, then further details
ParameterCalculator QuestMonster Feeder
PriceFreeFree
Rating4.1 (14 ratings)4.6 (223 ratings) — better
Positive reviews72.3% of reviews90.9% of reviews — better
Number of ratings14223 — better
Update frequencyEvery 4 monthsEvery 4 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.07.0 — better
Further details — not scored
Size9 MB11 MB
Age rating4+4+
DeveloperMasakazu YoneharaIstom Games Kft.

Customer experience

Calculator Quest

All ratings14 ratings
Positive71.4%
Neutral14.3%
Negative14.3%
Written reviews65 reviews
Positive72.3%
Neutral10.8%
Negative16.9%

Monster Feeder

All ratings223 ratings
Positive90.6%
Neutral5.8%
Negative3.6%
Written reviews715 reviews
Positive90.9%
Neutral7.6%
Negative1.5%

User reviews

Calculator Quest

From 14 App Store ratings

What we love

  • 💡 Unique RPG calculator concept
  • 👍 Fun and engaging gameplay
  • 🎨 Cute and retro graphics
  • 🎮 Good for learning math
  • ✨ Original and interesting idea

Room to improve

  • 😠 Intrusive ads
  • 📉 Lack of RPG depth
  • 🚫 No offline play option
  • 👎 Ads block numbers
  • 🤷‍♂️ Unclear RPG elements

Monster Feeder

From 223 App Store ratings

What we love

  • 👍 Addictive and fun gameplay
  • 🚀 Simple yet challenging
  • 💡 Unique monster-feeding concept
  • 👍 Retro-style graphics and animations

Room to improve

  • 🐛 Occasional crashes and freezes
  • 🔋 Can be resource-intensive
  • 👎 Some users find the monsters unappealing

Bugs and requests

Calculator Quest

Reported bugs

4 issues
  • App crashes immediately after killing monsters
  • Ads showing up on the top blocking off numbers
  • App needs to be updated for iOS 11
  • Can't use on new iPhone

Requested features

13 requests
  • Pay to remove ads option
  • Offline play option
  • More games to play
  • Increase calculation level
  • Add different calculation types (add, subtract, multiply, divide)
Show 8 more
  • Add maps and companions for RPG elements
  • Make game the main focus, not calculator
  • Add hidden command games
  • More gameplay features
  • Enhance calculation function
  • Make questions harder with progression
  • Add items like skipping problems
  • Update for newer iOS versions

Monster Feeder

Reported bugs

2 issues
  • Login screen freezes
  • Compatibility issues with older devices

Requested features

3 requests
  • Update to support latest iOS versions
  • Ability to select different game themes
  • More monster variety and customization options

In-app purchases

None

Calculator Quest

No in-app purchases

3 purchases

Monster Feeder

One-time3
  • Disable ads$0.99
  • Donate a buck$0.99
  • Unlock all monsters$1.99

Questions

Is Calculator Quest free?
Calculator Quest is free to download, with no in-app purchases.
Is Monster Feeder free?
Monster Feeder is free to download, with in-app purchases available.
Which has better reviews, Calculator Quest or Monster Feeder?
Monster Feeder is rated higher. Calculator Quest averages 4.1 out of 5 from 14 ratings, while Monster Feeder averages 4.6 from 223 ratings.
Do Calculator Quest or Monster Feeder have ads?
Calculator Quest shows ads; Monster Feeder does not.
Which is updated more often, Calculator Quest or Monster Feeder?
Calculator Quest ships an update every 4 months, and Monster Feeder every 4 weeks. Most recently, Calculator Quest was updated on November 1, 2026 and Monster Feeder on November 6, 2026.

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