Comp 2.0 vs GACRacing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Comp 2.0
Enhance your 1998.5-2002 24V Cummins diesel engine's performance with on-the-fly adjustments. Fine-tune fueling, accelerator pedal response, and timing for significant power gains.
- On-the-fly adjustability via Bluetooth
- Fine-tune low boost fueling
- Adjust fuel delivery based on pedal position
- Optimize timing for power curves
- Gains of 40-150 HP and 150-380 TQ
- Supports aftermarket injectors and turbos
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The COMP box has dominated the 1998.5-2002 24V Cummins market for two decades and put Edge Products on the map in the early diesel performance era. With so many VP44 trucks still on the road, we’ve revamped our COMP to offer dominating performance gains with the industry’s latest technology. Our all-new Bluetooth wireless switch offers on-the-fly adjustability giving complete control over the driving experience. The mobile App offers fine tuning adjustment for low boost fueling, fuel delivery based on Accelerator Pedal Position, and timing to dial in your power curve for aftermarket injectors and larger turbo combinations. Breathing new life into your 5.9L Cummins, COMP offers gains from 40-150 HP, 150-380 TQ, even more RPM, and power available for heavily modified applications.
GACRacing
This application is an Electronic Speed Controller (ESC) designed for crawler cars. It offers exceptional low-speed control and broad compatibility with sensorless brushless motors. Users can switch between crawler and normal operating modes via PWM channels.
- Super smooth low-speed control
- Compatible with 99% of sensorless brushless motors
- Two operating modes: crawler and normal
- Mode switching via PWM channels
- Designed for crawler cars
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This is an ESC developed for crawler car, with a super smooth low speed and compatibility with 99% of sensorless brushless motors. It has two operating modes: crawler mode and normal mode。 G40 ESc：Running mode can be switched through AUX channel G40 Pro ESC：Real time adjustment of drag braking force through AUX channel
Screenshots
Verdict
The clearest difference is rating: GACRacing at 5.0 against Comp 2.0's 3.8. GACRacing also leads on update cadence (every 2 months vs every 11 months) and iOS requirement (13.0 vs 15.0). Comp 2.0's advantage is ratings volume (6 vs 2). On price, ads, in-app purchases and monetization model 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.
GACRacing holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 6 and 2 respectively.
Comp 2.0 ships an update every 11 months, GACRacing every 2 months. The most recent releases landed on September 11, 2026 and July 6, 2026 respectively.
| Parameter | Comp 2.0 | GACRacing |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (6 ratings) | 5.0 (2 ratings) — better |
| Number of ratings | 6 — better | 2 |
| Update frequency | Every 11 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 139 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Holley Performance Products | 琪 赵 |
Customer experience
Comp 2.0
GACRacing
In-app purchases
Comp 2.0
No in-app purchases
GACRacing
No in-app purchases
