# USB Run! vs Melt and Fill

The clearest difference is rating: Melt and Fill at 4.4 against USB Run!'s 3.6. Melt and Fill also leads on ratings volume (616 vs 11). USB Run!'s advantage is in-app purchases (none vs 10) and review sentiment (50% vs 27%). On price, ads and device support there is nothing between them.

Both are free to download. Melt and Fill sells 10 one-off in-app purchases. USB Run! asks for nothing beyond the download.

Melt and Fill holds the better App Store score, 4.4 against 3.6. That said, the two scores are not equally well evidenced: Melt and Fill has 616 ratings behind it against 11, so its average is the more settled of the two. Written reviews complicate that: 50% of USB Run!'s written reviews are positive against 27% of Melt and Fill's, so the app with the better star average is not the one people write more warmly about.

USB Run! ships an update weekly, Melt and Fill monthly. Both last shipped on November 7, 2026.

## The numbers

| Metric | USB Run! | Melt and Fill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (11 ratings)](https://appshunter.io/ios/app/usb-run/id1588608302/reviews) | **[4.4 (616 ratings)](https://appshunter.io/ios/app/melt-and-fill/id6465749961/reviews)** |
| Number of ratings | 11 | **616** |
| Positive reviews | **50.0% of reviews** | 26.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 111 MB | 274 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Rike Games](https://appshunter.io/developer/1478430278) | [Voodoo](https://appshunter.io/developer/714804730) |

## What reviewers say

### USB Run!

[App page](https://appshunter.io/ios/app/usb-run/id1588608302)

Stack your USB drive as high as possible by collecting data like games, documents, and photos. Manage your storage carefully, or upload to the cloud. Aim for the jackpot in the clouds for a fun and thrilling experience.

**Highlights:** Intuitive swipe controls, Satisfying stack mechanic, Data collection (Games, Docs, Music, Photos), Cloud upload feature, Jackpot discovery, Popping sounds, Haptic feedback

**Features:** Vision Pro support

**In-app purchases:** none


### Melt and Fill

[App page](https://appshunter.io/ios/app/melt-and-fill/id6465749961)

Engage in a satisfying melting and filling experience. Slice, cook, and chop various items to fill bottles and earn in-game profit. Upgrade your equipment to melt faster and unlock new substances.

**Highlights:** Melt various items, Slice, cook, and chop ingredients, Fill bottles for profit, Upgrade melting machine, Upgrade bottles, Unlock new substances

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auto Sell | $0.99 | one-time |
| Speed Booster | $0.99 | one-time |
| Auto Add | $0.99 | one-time |
| Auto Tap | $0.99 | one-time |
| Coins Small Amount | $1.99 | one-time |
| Coins Medium Amount | $3.99 | one-time |
| Coins High Amount | $6.99 | one-time |
| Starter Pack | $6.99 | one-time |
| Remove Ads | $7.99 | one-time |
| Starter Pack | $9.99 | one-time |

**What reviewers like**

- 🎮 Satisfying gameplay
- 🕰️ Good time-waster
- 🎨 Visually appealing

**What reviewers complain about**

- 🐛 Frequent glitches and bugs
- 💰 Inconsistent pricing
- 📺 Excessive ads
- 🔄 Progress resets on app close

**Reported bugs**

- Stuck/missing objects
- Knife/tool malfunctions
- Pricing issues after app close

**Requested features**

- More level variety
- Improved save/load functionality
- Better ad management


## Frequently asked questions

### Is USB Run! free?

USB Run! is free to download, with no in-app purchases.

### Is Melt and Fill free?

Melt and Fill is free to download, with in-app purchases available.

### Which has better reviews, USB Run! or Melt and Fill?

Melt and Fill is rated higher. USB Run! averages 3.6 out of 5 from 11 ratings, while Melt and Fill averages 4.4 from 616 ratings.

### Do USB Run! or Melt and Fill have ads?

Both USB Run! and Melt and Fill show ads.

### Which is updated more often, USB Run! or Melt and Fill?

USB Run! ships an update weekly, and Melt and Fill monthly. Most recently, USB Run! was updated on November 7, 2026 and Melt and Fill on November 7, 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.*