# Fuel vs WetRuler

The clearest difference is rating: WetRuler at 5.0 against Fuel's 3.1. Fuel's advantage is update cadence (every 10 months vs every 43 months) and ratings volume (33 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

WetRuler holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Fuel has 33 ratings behind it against 1, so its average is the more settled of the two.

Fuel ships an update every 10 months, WetRuler every 43 months. The most recent releases landed on August 27, 2026 and June 20, 2026 respectively.

## The numbers

| Metric | Fuel | WetRuler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (33 ratings)](https://appshunter.io/ios/app/fuel-it-eca/id1004246767/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wetruler/id1445381420/reviews)** |
| Number of ratings | **33** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 43 months |
| Monetization | Free | Free |
| Size | 20 MB | 1 MB |
| Requires iOS | **13.4** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [Robert Werner](https://appshunter.io/developer/1445381419) |

## 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


### WetRuler

[App page](https://appshunter.io/ios/app/wetruler/id1445381420)

This augmented reality application measures and weighs fish using your device's camera. Simply place your catch on a surface, select the fish type, and the app will estimate its length and approximate weight. It also records a photo of your catch with the measurements displayed.

**Highlights:** AR measurement grid, Fish type selection, Approximate weight and length calculation, Records catch photos with data, Works in water for catch and release, Supports large fish up to 10 feet

**In-app purchases:** none


## Frequently asked questions

### Is Fuel free?

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

### Is WetRuler free?

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

### Which has better reviews, Fuel or WetRuler?

WetRuler is rated higher. Fuel averages 3.1 out of 5 from 33 ratings, while WetRuler averages 5.0 from 1 ratings.

### Do Fuel or WetRuler have ads?

Neither Fuel nor WetRuler shows ads.

### Which is updated more often, Fuel or WetRuler?

Fuel ships an update every 10 months, and WetRuler every 43 months. Most recently, Fuel was updated on August 27, 2026 and WetRuler on June 20, 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.*