# TC Tuner vs Comp 2.0

TC Tuner 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.

TC Tuner ships an update every 13 months, Comp 2.0 every 11 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TC Tuner | 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 13 months | **Every 11 months** |
| Monetization | — | Free |
| Size | 20 MB | 139 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edelbrock Corp](https://appshunter.io/developer/1579096297) | [Holley Performance Products](https://appshunter.io/developer/1175069390) |

## What reviewers say

### TC Tuner

[App page](https://appshunter.io/ios/app/tc-tuner/id1579604513)

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

**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 TC Tuner free?

TC Tuner 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 TC Tuner or Comp 2.0 have ads?

Neither TC Tuner nor Comp 2.0 shows ads.

### Which is updated more often, TC Tuner or Comp 2.0?

TC Tuner ships an update every 13 months, and Comp 2.0 every 11 months. Most recently, TC Tuner was updated on October 27, 2026 and Comp 2.0 on October 24, 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.*