iRaceWeigh vs Spark ECU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iRaceWeigh
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.
- 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
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Intercomp’s iRaceWeigh™ is designed to work with Intercomp’s line of weighing systems and pressure gauges. - Mobile devices can use Bluetooth® to connect to Intercomp XBT scales in Expert Weigh and Classic Weigh systems as well as Intercomp RFX™ Wireless Indicators (SW650RFX™, SW777RFX™, or SW888™) produced after Jan. 1, 2020 to display live weights. - An Intercomp Wi-Fi Module with the app in Wi-Fi Module mode can connect to the RFX™ Wireless Weighing Systems. - iRaceWeigh™ allows the user to manually enter, view and save weights along with the vehicle weight statistics like Front, Rear, Left, Right and Cross Totals with Percents. - Connect to an Intercomp Digital Memory Air Pressure Gauge using Bluetooth® to view and save the cold/out and hot/in pressures from the gauges saved memory banks and calculate the gain. - The saved weight and pressure sessions can be exported to spreadsheet via email (.csv file). iRaceWeigh™ combines Intercomp’s industry leading RFX™ Wireless Weighing Technology with a convenient iOS mobile app.
Spark ECU
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.
- Live engine data telemetry
- Diagnostic fault alerts
- Fuel adjustment settings
- Engine map switching
- Bluetooth connectivity
- Automatic device pairing
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SPARK app gives you a smart, intuitive interface to view all the live data from your engine in real time. Connect your smartphone via Bluetooth to the Taipan and Yarara ECU in two ways: • Via the CAN-BT Module, for instant access to main engine data and real-time telemetry. • Using the XLog, if you want to collect data while driving as well. The app provides you with live dash telemetry, warning and alerts for diagnostic faults and fuel adjustments. Furthermore, with SPARK app you can switch maps just using the scrollbar on your phone. Thanks to the automatic pairing, you just need to connect your device once!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | iRaceWeigh | Spark ECU |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 7 months | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 10 MB | 129 MB |
| Age rating | 4+ | 4+ |
| Developer | Intercomp | AIM tech SRL |
Customer experience
iRaceWeigh
Spark ECU
In-app purchases
iRaceWeigh
No in-app purchases
Spark ECU
No in-app purchases









