Planetary Idle vs IMUNO
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- 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
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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!
IMUNO
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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
Verdict
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
Both are free to download. Planetary Idle sells 3 one-off in-app purchases. IMUNO asks for nothing beyond the download.
Planetary Idle ships an update weekly, IMUNO every 5 days. The most recent releases landed on November 3, 2026 and October 26, 2026 respectively.
| Parameter | Planetary Idle | IMUNO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (81 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 81 — better | — |
| Update frequency | Weekly | Every 5 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17 | 17.0 |
| Further details — not scored | ||
| Size | 112 MB | 270 MB |
| Age rating | 4+ | +4 |
| Developer | Roberto Frias Nerio | Clinica Medica Sampaio e Goncalves LTDA |
In-app purchases
Planetary Idle
- Booster Pack$0.99
- Research Pack$2.99
- Quantum Pack$6.99
IMUNO
No in-app purchases









