# iRaceWeigh vs Spark ECU

The clearest difference is review sentiment: iRaceWeigh at 100% against Spark ECU's 0%. iRaceWeigh also leads on rating (3.0 vs 1.0) and iOS requirement (15.6 vs 18.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

iRaceWeigh holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of iRaceWeigh's written reviews are positive against 0% of Spark ECU's.

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on November 1, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | iRaceWeigh | Spark ECU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/iraceweigh/id427048138/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/spark-ecu/id6453165199/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | Free | Free |
| Size | 10 MB | 129 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Intercomp](https://appshunter.io/developer/427048141) | [AIM tech SRL](https://appshunter.io/developer/1187892995) |

## What reviewers say

### iRaceWeigh

[App page](https://appshunter.io/ios/app/iraceweigh/id427048138)

This app connects to specific weighing systems and pressure gauges via Bluetooth or Wi-Fi to display live weights and tire pressures. Users can manually enter, view, and save vehicle weight statistics and tire pressure data, exporting it to spreadsheets.

**Highlights:** Connect to Intercomp scales via Bluetooth/Wi-Fi, Display live weights, View and save tire pressures, Calculate weight statistics (Front, Rear, Cross Totals), Export data to CSV files, Connect to RFX Wireless Indicators

**Features:** macOS Compatibility

**In-app purchases:** none


### Spark ECU

[App page](https://appshunter.io/ios/app/spark-ecu/id6453165199)

View live engine data from your vehicle in real-time. Connect your smartphone via Bluetooth to access telemetry, receive diagnostic alerts, and adjust fuel settings. Easily switch between engine maps with an intuitive interface.

**Highlights:** Live engine data telemetry, Diagnostic fault alerts, Fuel adjustment settings, Engine map switching, Bluetooth connectivity, Automatic device pairing

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

**In-app purchases:** none


## Frequently asked questions

### Is iRaceWeigh free?

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

### Is Spark ECU free?

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

### Which has better reviews, iRaceWeigh or Spark ECU?

iRaceWeigh is rated higher. iRaceWeigh averages 3.0 out of 5 from 2 ratings, while Spark ECU averages 1.0 from 1 ratings.

### Do iRaceWeigh or Spark ECU have ads?

Neither iRaceWeigh nor Spark ECU shows ads.

### Which is updated more often, iRaceWeigh or Spark ECU?

iRaceWeigh ships an update every 7 months, and Spark ECU every 7 months. Most recently, iRaceWeigh was updated on November 1, 2026 and Spark ECU on October 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.*