# Trailer SYNC vs Comp 2.0

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.

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.

## The numbers

| Metric | Trailer SYNC | Comp 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (6 ratings)](https://appshunter.io/ios/app/comp-20/id6450721506/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 11 months** |
| Monetization | — | Free |
| Size | 1 MB | 139 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Fort](https://appshunter.io/developer/1330023385) | [Holley Performance Products](https://appshunter.io/developer/1175069390) |

## What reviewers say

### Trailer SYNC

[App page](https://appshunter.io/ios/app/trailer-sync/id1643608907)

**In-app purchases:** none


### Comp 2.0

[App page](https://appshunter.io/ios/app/comp-20/id6450721506)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Trailer SYNC free?

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

### Is Comp 2.0 free?

Comp 2.0 is free to download, with no in-app purchases.

### Do Trailer SYNC or Comp 2.0 have ads?

Neither Trailer SYNC nor Comp 2.0 shows ads.

### Which is updated more often, Trailer SYNC or Comp 2.0?

Trailer SYNC ships an update every 12 months, and Comp 2.0 every 11 months. Most recently, Trailer SYNC was updated on October 4, 2026 and Comp 2.0 on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*