# SPRING Cube vs Fuelsystem

SPRING Cube and Fuelsystem are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SPRING Cube ships an update fortnightly, Fuelsystem every 10 days. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SPRING Cube | Fuelsystem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Size | 66 MB | 23 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SPRING s.r.l.](https://appshunter.io/developer/1499980148) | [Tecno Srl](https://appshunter.io/developer/1464181133) |

## What reviewers say

### SPRING Cube

[App page](https://appshunter.io/ios/app/spring-cube/id1621707702)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fuelsystem

[App page](https://appshunter.io/ios/app/fuelsystem/id6467641471)

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

**In-app purchases:** none


## Frequently asked questions

### Is SPRING Cube free?

SPRING Cube is free to download, with no in-app purchases.

### Is Fuelsystem free?

Fuelsystem is free to download, with no in-app purchases.

### Do SPRING Cube or Fuelsystem have ads?

Neither SPRING Cube nor Fuelsystem shows ads.

### Which is updated more often, SPRING Cube or Fuelsystem?

SPRING Cube ships an update fortnightly, and Fuelsystem every 10 days. Most recently, SPRING Cube was updated on October 12, 2026 and Fuelsystem on October 4, 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.*