Trailer SYNC vs Comp 2.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trailer SYNC
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This App allows the user to view status from a bluetooth connected Trailer SYNC device. The state of trailer lights are displays on the main screen and a diagnostic screen displays detailed voltage and current for each light.
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.
Screenshots
Verdict
Trailer SYNC and Comp 2.0 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Trailer SYNC ships an update every 12 months, Comp 2.0 every 11 months. Both last shipped on October 4, 2026.
| Parameter | Trailer SYNC | Comp 2.0 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.8 (6 ratings) — better |
| Number of ratings | — | 6 — better |
| Update frequency | Every 12 months | Every 11 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 139 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Fort | Holley Performance Products |
In-app purchases
Trailer SYNC
No in-app purchases
Comp 2.0
No in-app purchases
