Comparison

Infectonator vs Realm Grinder

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

Head to head
About

Infectonator

Unleash a global zombie apocalypse by strategically infecting countries. Upgrade your undead army, unlock special abilities, and turn the world into your personal zombie playground. Enjoy vibrant pixel art and a humorous take on the zombie genre.

Highlights
  • Worldwide zombie infection
  • Zombie virus upgrades
  • Unlock special undead
  • Infect unique countries
  • Pixel art graphics
  • Humorous gameplay
Features
Read full description

Tired of killing zombies? How about turning people into zombies instead! "Best Game of the Year 2012" - Armor Games "Best Browser Strategy & Simulation 2012" - JayisGames "Carnage Was Never So Cute" - JayisGames "Guaranteed to bring mayhem fun" - Indigo Entertainment "This Game is Epic" - AstralX7 "Infectonator is made more robust" - IGN "Great Pixel Art Graphics" - AppAdvice They said you were crazy. They said you were inhuman. Well, you're assembling a lab full of zombies to take over the world by turning everyone into zombies, so they were probably right. Infectonator is over-the-top arcade action where you drop your undead virus into unsuspecting countries and reap the rewards. Upgrade your zombies with powerful enhancements, unlock special undead and chow down on celebrities, and infect each unique country by giving a whole new meaning to "going green". With bright pixel graphics and a sense of humor, Infectonator is a fun and casual zombie game for everyone.

About

Realm Grinder

Build a vast kingdom from humble beginnings, earning wealth even offline. Explore deep strategic choices by aligning with diverse factions, unlocking hundreds of upgrades, and discovering new game systems. Enjoy frequent events and collect numerous achievements.

Highlights
  • Kingdom building and offline wealth generation
  • Deep strategic choices with multiple factions
  • Hundreds of upgrades and unique buildings
  • Unlock new game systems and content
  • Collect hundreds of achievements
  • Frequent in-game events
Features
Read full description

Grow your kingdom, build alliances, and explore one of the deepest idle RPG's ever! Use your money and influence to grow your kingdom from a single farm to a huge realm that earns wealth even while you're not online! In Realm Grinder, the player is given an incredible array of choices in how they build forge their new kingdom. KEY FEATURES: *Deep Strategy - Choose to align yourself with a dozen different factions, each of which has their own distinct play style. Will you align with the elves, who reward tapping for treasure, or the demons, who give massive bonuses to the most powerful structures? *Hundreds of Upgrades - Further fine tune your strategy by choosing unique upgrades, buildings, and spells to invest in. *Tons of Content - Continue to unlock new and exciting systems like new factions, research, reincarnations, excavations, and way more. Months and months of unique content! *Collect Hundreds of Achievements - Achievement hunters will be delighted with the broad range and depth of the achievement system. And it's not just eye candy! Many strategies rely on collecting trophies in order to boost certain upgrades. *Frequent Events - Beyond the expansive base content in the game, there are frequent events where players can enjoy unique mechanics and exciting bonuses. Please Note: Realm Grinder is a free-to-play game, but some extra game items can be purchased for real money. You can disable in-app purchases in your device's settings.

Screenshots

Infectonator4 screens
Realm Grinder4 screens

Verdict

The call

The clearest difference is ads: Infectonator at none against Realm Grinder's shown. Infectonator also leads on review sentiment (82% vs 64%) and rating (4.7 vs 4.5). On price, ratings volume, in-app purchases and monetization model 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. Infectonator sells 4 one-off in-app purchases and Realm Grinder sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Infectonator holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 1.9K and 3.1K respectively. Written reviews point the same way: 82% of Infectonator's written reviews are positive against 64% of Realm Grinder's.

UpkeepUpdate frequency

Infectonator ships an update every 2 weeks, Realm Grinder every 6 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Infectonator versus Realm Grinder: the parameters behind the verdict, then further details
ParameterInfectonatorRealm Grinder
PriceFreeFree
Rating4.7 (1.9K ratings) — better4.5 (3.1K ratings)
Positive reviews81.9% of reviews — better63.8% of reviews
Number of ratings1.9K3.1K — better
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better13.0
Further details — not scored
Size171 MB53 MB
Age rating9+9+
DeveloperArmor Games Studios IncKongregate

Customer experience

Infectonator

All ratings1,918 ratings
Positive94.7%
Neutral1.8%
Negative3.5%
Written reviews757 reviews
Positive81.9%
Neutral4.0%
Negative14.1%

Realm Grinder

All ratings3,114 ratings
Positive89.0%
Neutral4.6%
Negative6.3%
Written reviews726 reviews
Positive63.8%
Neutral10.3%
Negative25.9%

User reviews

Infectonator

From 1.9K App Store ratings

What we love

  • 👍 Fun and addictive gameplay
  • 🚀 Engaging retro-style graphics
  • 💡 Unique zombie-themed strategy
  • 👍 No intrusive ads or microtransactions

Room to improve

  • 🐛 Crashes and bugs on some devices
  • 🐛 Unresponsive controls or tutorial issues
  • 🐛 Difficulty balancing concerns

Realm Grinder

From 3.1K App Store ratings

What we love

  • 🚀 Fantastic game, getting even better
  • 🚀 Best idle game imo
  • 🚀 Really Good!
  • 🚀 Great game, just hard to read the text
  • 🚀 Amazing, Addicting, Creative, and Addicting Game!

Room to improve

  • 🐛 Scry not working - no response from support team
  • 🐛 Crashes constantly
  • 🐛 Impossible to read/play on iPhone 12
  • 🐛 Impossible to read/play on iPhone 12
  • 🐛 Broke

Bugs and requests

Infectonator

Reported bugs

3 issues
  • Game crashes on startup
  • Tutorial gets stuck and can't progress
  • Zombies not behaving as expected

Requested features

3 requests
  • More zombie types and upgrades
  • Sandbox/custom mode
  • Improved audio settings

Realm Grinder

Reported bugs

10 issues
  • Scry not working since last release
  • Crashes constantly
  • Impossible to read/play on iPhone 12
  • Impossible to read/play on iPhone 12
  • Can't collect lava stone, only holy symbols
Show 5 more
  • No lava stones
  • UI bad
  • Crashes every time it connects to Game Center
  • Spells cast not counting
  • Can't purchase anything

Requested features

5 requests
  • Have to add some faction wars
  • Change the screen bigger for newer iPhone models please
  • Please add Chinese
  • Please add Chinese
  • Suggestion

In-app purchases

4 purchases

Infectonator

One-time4
  • 10.000 Coins!$0.99
  • 100.000 Coins!$4.99
  • Unlock All Zombies!$9.99
Show 1 more
  • 1.000.000 Coins!$24.99
9 purchases

Realm Grinder

One-time9
  • Gift of the Heroes$4.99
  • Small Pack of Rubies$4.99
  • Gift of the Kings$9.99
Show 6 more
  • Medium Pack of Rubies$9.99
  • Gift of the Faithful$9.99
  • Gift of the Myths$14.99
  • Gift of the Gods$19.99
  • Large Pack of Rubies$19.99
  • Huge Pack of Rubies$49.99

Questions

Is Infectonator free?
Infectonator is free to download, with in-app purchases available.
Is Realm Grinder free?
Realm Grinder is free to download, with in-app purchases available.
Which has better reviews, Infectonator or Realm Grinder?
Infectonator is rated higher. Infectonator averages 4.7 out of 5 from 1.9K ratings, while Realm Grinder averages 4.5 from 3.1K ratings.
Do Infectonator or Realm Grinder have ads?
Realm Grinder shows ads; Infectonator does not.
Which is updated more often, Infectonator or Realm Grinder?
Infectonator ships an update every 2 weeks, and Realm Grinder every 6 weeks. Most recently, Infectonator was updated on October 26, 2026 and Realm Grinder on October 24, 2026.

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