# Idle Space Manager vs Critical

The clearest difference is review sentiment: Idle Space Manager at 72% against Critical's 18%. Idle Space Manager also leads on rating (4.8 vs 4.4) and ratings volume (1.7K vs 147). Critical's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Idle Space Manager sells 10 one-off in-app purchases and Critical sells 17 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Idle Space Manager holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Idle Space Manager has 1.7K ratings behind it against 147, so its average is the more settled of the two. Written reviews point the same way: 72% of Idle Space Manager's written reviews are positive against 18% of Critical's.

Idle Space Manager ships an update every 2 months, Critical fortnightly. Both last shipped on October 21, 2026.

## The numbers

| Metric | Idle Space Manager | Critical |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.7K ratings)](https://appshunter.io/ios/app/idle-space-manager/id1436501824/reviews)** | [4.4 (147 ratings)](https://appshunter.io/ios/app/critical-incremental-reactor/id6446354857/reviews) |
| Number of ratings | **1.7K** | 147 |
| Positive reviews | **72.1% of reviews** | 18.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 166 MB | 99 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ColdFire Games](https://appshunter.io/developer/1115361886) | [WaffleStack Studio LLC](https://appshunter.io/developer/1523413949) |

## What reviewers say

### Idle Space Manager

[App page](https://appshunter.io/ios/app/idle-space-manager/id1436501824)

Build and manage an idle space company by automating spaceship fleets and collecting passive income. Research new ships, upgrade hangars, and expand your space tower to become the wealthiest tycoon in the galaxy. Enjoy offline gameplay and continuous earnings.

**Highlights:** Manage spaceship fleets and hangars, Automate idle processes, Earn idle cash offline, Upgrade incremental tower, Research new spaceships, Offline gameplay

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 80 Space Cash | $0.99 | one-time |
| REMOVE ADS PERMANENTLY | $2.99 | one-time |
| Enhanced Thruster | $4.99 | one-time |
| 2x Idle Credits | $4.99 | one-time |
| 500 Space Cash | $4.99 | one-time |
| Double Boost Bundle | $9.99 | one-time |
| 1200 Space Cash | $9.99 | one-time |
| REMOVE ADS PERMANENTLY | $10.99 | one-time |
| 2500 Space Cash | $19.99 | one-time |
| 14000 Space Cash | $99.99 | one-time |

**What reviewers like**

- 🚀 Fast progression
- 👍 Minimal ads
- 💎 Unique ship designs
- 🎨 Beautiful pixel art
- 🕹️ Addictive gameplay

**What reviewers complain about**

- 🐢 Repetitive gameplay
- 🤖 Lack of ship/pilot variety
- 🔍 Unclear pilot abilities
- 🔋 Battery draining
- 🤔 Lack of content/features

**Reported bugs**

- Crashes on older devices
- Inability to close ads
- Freezing issues

**Requested features**

- Add more planets/worlds to explore
- Implement a prestige/reset system
- Add more ship/pilot customization options
- Introduce player-vs-player battles
- Improve offline earnings


### Critical

[App page](https://appshunter.io/ios/app/critical-incremental-reactor/id6446354857)

Manage a reactor to prevent it from becoming critical by delivering water. Earn money over time to unlock permanent upgrades and improve your survival capabilities. Invest wisely to extend your runs and uncover secrets.

**Highlights:** Reactor management, Incremental income generation, Permanent upgrades, Research and secrets, Survival gameplay

**Features:** macOS Compatibility

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Gems | $2.99 | one-time |
| 100 Gems | $4.99 | one-time |
| Remove Ads | $7.99 | one-time |
| 225 Gems | $7.99 | one-time |
| Starter Pack | $9.99 | one-time |
| Remove All Ads | $9.99 | one-time |
| 225 Gems | $9.99 | one-time |
| 500 Gems | $9.99 | one-time |
| Pro Pack | $9.99 | one-time |
| Pro Pack | $14.99 | one-time |
| New Player Sale | $14.99 | one-time |
| 500 Gems | $14.99 | one-time |
| 1400 Gems | $19.99 | one-time |
| 800 Gems | $19.99 | one-time |
| 1400 Gems | $29.99 | one-time |
| 3000 Gems | $29.99 | one-time |
| 3000 Gems | $39.99 | one-time |


## Frequently asked questions

### Is Idle Space Manager free?

Idle Space Manager is free to download, with in-app purchases available.

### Is Critical free?

Critical is free to download, with in-app purchases available.

### Which has better reviews, Idle Space Manager or Critical?

Idle Space Manager is rated higher. Idle Space Manager averages 4.8 out of 5 from 1.7K ratings, while Critical averages 4.4 from 147 ratings.

### Do Idle Space Manager or Critical have ads?

Both Idle Space Manager and Critical show ads.

### Which is updated more often, Idle Space Manager or Critical?

Idle Space Manager ships an update every 2 months, and Critical fortnightly. Most recently, Idle Space Manager was updated on October 21, 2026 and Critical on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*