# Fuel vs Diode Dynamics

The clearest difference is review sentiment: Fuel at 50% against Diode Dynamics's 26%. Fuel also leads on update cadence (every 10 months vs every 34 months) and rating (3.1 vs 2.9). Diode Dynamics's advantage is iOS requirement (11.0 vs 13.4). On price, ratings volume, 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 holds the better App Store score, 3.1 against 2.9. Both are backed by a comparable volume of ratings — 33 and 56 respectively. Written reviews point the same way: 50% of Fuel's written reviews are positive against 26% of Diode Dynamics's.

Fuel ships an update every 10 months, Diode Dynamics every 34 months. The most recent releases landed on August 27, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Fuel | Diode Dynamics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (33 ratings)](https://appshunter.io/ios/app/fuel-it-eca/id1004246767/reviews)** | [2.9 (56 ratings)](https://appshunter.io/ios/app/diode-dynamics/id1282220386/reviews) |
| Number of ratings | 33 | **56** |
| Positive reviews | **50.0% of reviews** | 25.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 34 months |
| Monetization | Free | Free |
| Size | 20 MB | 17 MB |
| Requires iOS | 13.4 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [Diode Dynamics LLC](https://appshunter.io/developer/1282220385) |

## 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


### Diode Dynamics

[App page](https://appshunter.io/ios/app/diode-dynamics/id1282220386)

Control Bluetooth-enabled LED lighting with a wide range of customization. Choose from an unlimited color palette, create dynamic lighting effects like fades and strobes, or sync your lights to music. Manage multiple controllers individually or group them for a unified look.

**Highlights:** Unlimited color selection, Custom fade, strobe, and flash modes, Music synchronization, Control multiple controllers, Group controllers for unified control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fuel free?

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

### Is Diode Dynamics free?

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

### Which has better reviews, Fuel or Diode Dynamics?

Fuel is rated higher. Fuel averages 3.1 out of 5 from 33 ratings, while Diode Dynamics averages 2.9 from 56 ratings.

### Do Fuel or Diode Dynamics have ads?

Neither Fuel nor Diode Dynamics shows ads.

### Which is updated more often, Fuel or Diode Dynamics?

Fuel ships an update every 10 months, and Diode Dynamics every 34 months. Most recently, Fuel was updated on August 27, 2026 and Diode Dynamics on September 22, 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.*