# Fuel vs APR PCU

The clearest difference is iOS requirement: Fuel at 13.4 against APR PCU's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Fuel ships an update every 10 months, APR PCU every 5 months. The most recent releases landed on October 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Fuel | APR PCU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (33 ratings)](https://appshunter.io/ios/app/fuel-it-eca/id1004246767/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 20 MB | 141 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [Holley Performance Products](https://appshunter.io/developer/1175069390) |

## What reviewers say

### Fuel

[App page](https://appshunter.io/ios/app/fuel-it-eca/id1004246767)

Monitor your vehicle's ethanol concentration and fuel temperature in real-time. This app wirelessly connects to a compatible Bluetooth module, freeing up your device's port for simultaneous charging and monitoring. It includes an ethanol fill-up concentration calculator and customizable display views.

**Highlights:** Real-time ethanol concentration monitoring, Real-time fuel temperature monitoring, Wireless Bluetooth connectivity, Ethanol fill-up concentration calculator, Fahrenheit or Celsius display options, Two display views

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

**In-app purchases:** none


### APR PCU

[App page](https://appshunter.io/ios/app/apr-pcu/id6462687757)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fuel free?

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

### Is APR PCU free?

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

### Do Fuel or APR PCU have ads?

Neither Fuel nor APR PCU shows ads.

### Which is updated more often, Fuel or APR PCU?

Fuel ships an update every 10 months, and APR PCU every 5 months. Most recently, Fuel was updated on October 24, 2026 and APR PCU 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.*