# Upload Simulator 2 vs IdleSphere

The clearest difference is price: IdleSphere at Free against Upload Simulator 2's $3.99. Upload Simulator 2's advantage is rating (4.4 vs 3.8) and in-app purchases (none vs 6). On ratings volume and device support there is nothing between them.

IdleSphere is free to download; Upload Simulator 2 costs $3.99 up front. IdleSphere sells 6 one-off in-app purchases. Upload Simulator 2 asks for nothing beyond the download.

Upload Simulator 2 holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 18 and 32 respectively. Written reviews point the same way: 80% of Upload Simulator 2's written reviews are positive against 47% of IdleSphere's.

Upload Simulator 2 ships an update every 2 days, IdleSphere every 8 days. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Upload Simulator 2 | IdleSphere |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.4 (18 ratings)](https://appshunter.io/ios/app/upload-simulator-2/id6474804328/reviews)** | [3.8 (32 ratings)](https://appshunter.io/ios/app/idlesphere/id6480509205/reviews) |
| Number of ratings | 18 | **32** |
| Positive reviews | **80.0% of reviews** | 46.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 8 days |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 125 MB | 224 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EnigmaDev Studios](https://appshunter.io/developer/1722551461) | [Idle System, Inc.](https://appshunter.io/developer/1727483319) |

## What reviewers say

### Upload Simulator 2

[App page](https://appshunter.io/ios/app/upload-simulator-2/id6474804328)

Simulate the process of uploading data to earn credits, upgrade your hardware, and research new technologies. Discover unique artifacts, craft modules, and customize your operating system with themes and wallpapers.

**Highlights:** GPU mining for credits, Upgrade hardware setup, Research new technologies, Craft modules, Customize OS with themes, Discover unique artifacts

**Features:** macOS Compatibility

**In-app purchases:** none


### IdleSphere

[App page](https://appshunter.io/ios/app/idlesphere/id6480509205)

Experience a visually stunning incremental game centered around spheres. Watch countless spheres come to life with synchronized graphics and in-game currency. Enjoy intuitive upgrades, a deep prestige system, and a wealth of content in this mesmerizing adventure.

**Highlights:** Visually stunning sphere graphics, Synchronized in-game currency and visuals, Intuitive upgrade system, Extensive prestige system, Zoom in and out functionality, Wealth of content

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chaotics 200 | $1.99 | one-time |
| Chaotics 1000 | $6.99 | one-time |
| Orbit Pack | $7.99 | one-time |
| Permanent Bonus | $9.99 | one-time |
| Digital Winter | $19.99 | one-time |
| Chaotics 5000 | $29.99 | one-time |


## Frequently asked questions

### Is Upload Simulator 2 free?

Upload Simulator 2 costs $3.99, with no in-app purchases.

### Is IdleSphere free?

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

### Which has better reviews, Upload Simulator 2 or IdleSphere?

Upload Simulator 2 is rated higher. Upload Simulator 2 averages 4.4 out of 5 from 18 ratings, while IdleSphere averages 3.8 from 32 ratings.

### Do Upload Simulator 2 or IdleSphere have ads?

IdleSphere shows ads; Upload Simulator 2 does not.

### Which is updated more often, Upload Simulator 2 or IdleSphere?

Upload Simulator 2 ships an update every 2 days, and IdleSphere every 8 days. Most recently, Upload Simulator 2 was updated on October 1, 2026 and IdleSphere on October 11, 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.*