# Fuel Lock® vs Viaesys InstallTrack

The clearest difference is update cadence: Fuel Lock® at every 5 weeks against Viaesys InstallTrack's every 26 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Fuel Lock® ships an update every 5 weeks, Viaesys InstallTrack every 26 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Fuel Lock® | Viaesys InstallTrack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 26 months |
| Size | 33 MB | 27 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IntraGrain Technologies Inc](https://appshunter.io/developer/985769003) | [Viaesys Inc.](https://appshunter.io/developer/1100781721) |

## What reviewers say

### Fuel Lock®

[App page](https://appshunter.io/ios/app/fuel-lock/id1405120861)

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

**In-app purchases:** none


### Viaesys InstallTrack

[App page](https://appshunter.io/ios/app/viaesys-installtrack/id6451205906)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fuel Lock® free?

Fuel Lock® is free to download, with no in-app purchases.

### Is Viaesys InstallTrack free?

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

### Do Fuel Lock® or Viaesys InstallTrack have ads?

Neither Fuel Lock® nor Viaesys InstallTrack shows ads.

### Which is updated more often, Fuel Lock® or Viaesys InstallTrack?

Fuel Lock® ships an update every 5 weeks, and Viaesys InstallTrack every 26 months. Most recently, Fuel Lock® was updated on October 26, 2026 and Viaesys InstallTrack on November 3, 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.*