# Fuel Lock® vs Maintenance Tracker

The clearest difference is in-app purchases: Fuel Lock® at none against Maintenance Tracker's 1. Fuel Lock® also leads on ads (none vs shown). Maintenance Tracker's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. Maintenance Tracker sells 1 one-off in-app purchase. Fuel Lock® asks for nothing beyond the download.

Fuel Lock® ships an update every 5 weeks, Maintenance Tracker every 3 weeks. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Fuel Lock® | Maintenance Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 33 MB | 54 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IntraGrain Technologies Inc](https://appshunter.io/developer/985769003) | [Ryan Knisley](https://appshunter.io/developer/1867434341) |

## 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


### Maintenance Tracker

[App page](https://appshunter.io/ios/app/maintenance-tracker/id6757522265)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Fuel Lock® free?

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

### Is Maintenance Tracker free?

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

### Do Fuel Lock® or Maintenance Tracker have ads?

Maintenance Tracker shows ads; Fuel Lock® does not.

### Which is updated more often, Fuel Lock® or Maintenance Tracker?

Fuel Lock® ships an update every 5 weeks, and Maintenance Tracker every 3 weeks. Most recently, Fuel Lock® was updated on September 8, 2026 and Maintenance Tracker on September 18, 2026.

---

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