Comparison

Planetary Idle vs IMUNO

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

Head to head
About

Planetary Idle

Explore planets with a retro sci-fi idle theme. Hire scientists for passive income, tap for boosts, and research expeditions for discoveries. Prestige to reset with permanent upgrades and unlock perks with rare QBits.

Highlights
  • Hire Scientists for passive income
  • Tap to boost active income
  • Research expeditions for discoveries
  • Prestige system with permanent upgrades
  • Earn QBits for powerful perks
  • Offline progress for 6 hours
Features
Read full description

Discover planets with a retro sci-fi idle theme with Planetary Idle! • Hire Scientists - Generate steady passive income and scale your operation. • Tap to Boost - Tap for extra cash when you’re active. • Research Expeditions - Spend money and brave scientists on one-way missions for discoveries and income bonuses! • Prestige - Reset, keep permanent upgrades, blast past your previous best. • QBits & Upgrades - Earn rare QBits and unlock powerful perks. • Play Your Pace - Short bursts or long idles; progress for 6 hours when offline. • Game Center - Many achievements to unlock!

About

IMUNO

Features
Read full description

Your body is the factory. Eight immune cells feed each other in a chain that never stops: Neutrophils make cytokines, Macrophages make Neutrophils, and so on up to the Stem Cell. Buy one cell and the whole chain runs faster, awake or asleep. IMUNO is a long idle game. Not a week long. Years. FIGHT SOMETHING REAL Every Immune Response is a fight against one invader, and you pick it. A Bacterium is quick. A Parasite takes five hundred times the cytokines and pays far more Memory Points. The Virus grows harder the longer you watch it, so it rewards being there. Three invaders are on the board at a time, and the choice is yours every single response. RESOLVE, AND START AGAIN STRONGER When the infection is beaten, Resolve. Cells and cytokines reset; Memory Points stay. Spend them on the organ trees, on permanently unlocking the top four cells, or save them for the next organ. The game tells you what the next Resolution will cost and roughly how long it will take, before you commit. ORGANS, NOT MENUS The Bone Marrow is only the first layer. Each organ has its own rank, its own install grid, its own clones, and its own Hypertrophy that resets the organ for a permanent multiplier. The Thymus makes every upgrade cheaper and stronger. More organs arrive over time, each with one new mechanic. OFFLINE THAT ACTUALLY WORKS Close the app and your cells keep producing, capped and always reported honestly: what you earned, and what the cap cost you. No fake timers. FAIR BY DESIGN No loot boxes. No gacha. No random purchases of any kind. Rewarded ads are optional and give Boost Tokens; the shop sells convenience and permanent multipliers, each described in one sentence that says exactly what you get. Nothing you buy is random, and nothing gates progress behind payment. No account. No sign-up. Open it and play.

Screenshots

Planetary Idle4 screens
IMUNO4 screens

Verdict

The call

The clearest difference is in-app purchases: IMUNO at none against Planetary Idle's 3. On price, update cadence, ads 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. Planetary Idle sells 3 one-off in-app purchases. IMUNO asks for nothing beyond the download.

UpkeepUpdate frequency

Planetary Idle ships an update weekly, IMUNO every 5 days. The most recent releases landed on November 3, 2026 and October 26, 2026 respectively.

Scorecard1 real difference · 9 level
Planetary Idle versus IMUNO: the parameters behind the verdict, then further details
ParameterPlanetary IdleIMUNO
PriceFreeFree
Rating4.8 (81 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings81 — better—
Update frequencyWeeklyEvery 5 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS1717.0
Further details — not scored
Size112 MB270 MB
Age rating4++4
DeveloperRoberto Frias NerioClinica Medica Sampaio e Goncalves LTDA

In-app purchases

3 purchases

Planetary Idle

One-time3
  • Booster Pack$0.99
  • Research Pack$2.99
  • Quantum Pack$6.99
None

IMUNO

No in-app purchases

Questions

Is Planetary Idle free?
Planetary Idle is free to download, with in-app purchases available.
Is IMUNO free?
IMUNO is free to download, with no in-app purchases.
Do Planetary Idle or IMUNO have ads?
Both Planetary Idle and IMUNO show ads.
Which is updated more often, Planetary Idle or IMUNO?
Planetary Idle ships an update weekly, and IMUNO every 5 days. Most recently, Planetary Idle was updated on November 3, 2026 and IMUNO on October 26, 2026.

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