Comparison

Immunity vs Pac.io

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

Head to head
About

Immunity

Features
Read full description

How to play - Our hero is 'Gurrrm the Germ'. It's a hard life being a germ trying to stay alive amongst all the other germs. - Gurrrm's immunity level is constantly draining. In order to increase Gurrrm's immunity and stay alive, Gurrrm must attack the other germs but only the germs he is immune to. - If Gurrrm touches germs he is not currently immune to his immunity meter is drained. - The colour of germ that Gurrrm is currently immune to is shown in the 'Immunity Colour Box'. The immunity colour is constantly changing. - Killing correct colour germs while aviod hostile germs ups your score multiplier! - Watch out for 'Worm Germs'. They will directly attack Gurrrm draining his immunity. Avoid them at all costs as they can not be killed. - Eating a 'Health Pill' will boost Gurrrm's immunity. - If Gurrrm's immunity reaches zero, its game over! Features - Universal app compatible with iPad, iPhone and iPod touch - Retina display optimised - Game Center achievements and top scores leaderboard supported - Facebook functionality supported

About

Pac.io

Engage in an addictive grid-battle by swiping to outsmart opponents and dominate the arena. Utilize a variety of power-ups and unlock unique skins to enhance your gameplay and rise through the ranks. Enjoy endless fun offline or online with intuitive controls.

Highlights
  • Swipe controls for movement
  • Strategic power-ups
  • Unlockable skins
  • Offline and online play
  • Intuitive gameplay
Features
Read full description

Pac.io – Swipe, Power Up, and Dominate the Grid! Dive into the ultimate io grid-battle! Swipe in four directions, outsmart your opponents, and become the King of the grid. Every move counts—strategize, dodge, and strike to stay on top! Unleash Epic Power-Ups Turn the tide of battle with incredible power-ups: Bomb, Ghost, 5x Multiplier, Magnet, Sword, Thunder, Freeze, Laser, and Speed Up. Eat bigger players, escape tricky situations, and crush your enemies with style. Use them wisely—power waits for no one! Unlock Legendary Skins Show off your legendary skins as you rise through the ranks. Each skin makes you look epic and adds extra flair while you dominate the battlefield. Game Highlights • Play anywhere—offline or online, anytime. • Smooth, intuitive swipe controls for lightning-fast moves. • Easy to learn, impossible to put down. • FREE to play with endless battles, power-ups, and epic fun! Swipe, power up, and conquer—become the ultimate legend in Pac.io!

Screenshots

Immunity4 screens
Pac.io4 screens

Verdict

The call

The clearest difference is price: Pac.io at Free against Immunity's $0.99. Pac.io also leads on update cadence (fortnightly vs every 9 months) and iOS requirement (13.0 vs 16.0). Immunity's advantage is in-app purchases (none vs 10) and ads (none vs shown). On 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

Pac.io is free to download; Immunity costs $0.99 up front. Pac.io sells 10 one-off in-app purchases. Immunity asks for nothing beyond the download.

UpkeepUpdate frequency

Immunity ships an update every 9 months, Pac.io fortnightly. The most recent releases landed on December 13, 2025 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
Immunity versus Pac.io: the parameters behind the verdict, then further details
ParameterImmunityPac.io
Price$0.99Free — better
Rating4.2 (297 ratings) — better
Positive reviews53.9% of reviews
Number of ratings297 — better
Update frequencyEvery 9 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size15 MB139 MB
Age rating4+12+
DeveloperPaul Andrew HerbertNomadic Bear Games

Bugs and requests

Immunity

Not enough reviews yet to summarise bugs or requests.

Pac.io

Reported bugs

7 issues
  • Ads crash game at end of video
  • Game freezes after ad completion
  • Pink screen ad that cannot be closed
  • Instant death upon spawning
  • Players getting stuck behind walls
Show 2 more
  • Power pellet duration inconsistencies
  • Game glitching and crashing frequently

Requested features

9 requests
  • Arrow buttons or D-pad controls instead of sliding
  • Ad-free premium version for purchase
  • Ability to disable ads with WiFi off
  • Friend list and private room creation
  • Real player names instead of randomized ones
Show 4 more
  • Grace period or invincibility after spawn
  • Sound effects and audio
  • New items, levels, and game updates
  • Revert to original 2024 version

In-app purchases

None

Immunity

No in-app purchases

10 purchases

Pac.io

One-time10
  • Small Coin Pack$0.99
  • Medium Coin Pack$4.99
  • Magnet$4.99
Show 7 more
  • Thunder$4.99
  • Sword$4.99
  • Big Coin Pack$9.99
  • No Ads$9.99
  • Large Coin Pack$19.99
  • Huge Coin Pack$49.99
  • Massive Coin Pack$99.99

Questions

Is Immunity free?
Immunity costs $0.99, with no in-app purchases.
Is Pac.io free?
Pac.io is free to download, with in-app purchases available.
Do Immunity or Pac.io have ads?
Pac.io shows ads; Immunity does not.
Which is updated more often, Immunity or Pac.io?
Immunity ships an update every 9 months, and Pac.io fortnightly. Most recently, Immunity was updated on December 13, 2025 and Pac.io on September 21, 2026.

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