# Comp 2.0 vs PeptideCalc Pro

The clearest difference is price: Comp 2.0 at Free against PeptideCalc Pro's $4.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Comp 2.0 is free to download; PeptideCalc Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Comp 2.0 | PeptideCalc Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| 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 11 months | — |
| Monetization | Free | — |
| Size | 139 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Holley Performance Products](https://appshunter.io/developer/1175069390) | [Aaron Voges](https://appshunter.io/developer/1866792993) |

## What reviewers say

### 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


### PeptideCalc Pro

[App page](https://appshunter.io/ios/app/peptidecalc-pro/id6757415669)

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

**In-app purchases:** none


## Frequently asked questions

### Is Comp 2.0 free?

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

### Is PeptideCalc Pro free?

PeptideCalc Pro costs $4.99, with no in-app purchases.

### Do Comp 2.0 or PeptideCalc Pro have ads?

Neither Comp 2.0 nor PeptideCalc Pro shows ads.

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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.*