# PredatorX vs Decode RPO

The clearest difference is rating: Decode RPO at 4.8 against PredatorX's 2.1. Decode RPO also leads on in-app purchases (none vs 3) and update cadence (every 5 days vs every 3 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. PredatorX sells 3 one-off in-app purchases. Decode RPO asks for nothing beyond the download.

Decode RPO holds the better App Store score, 4.8 against 2.1. Both are backed by a comparable volume of ratings — 30 and 22 respectively.

PredatorX ships an update every 3 weeks, Decode RPO every 5 days. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PredatorX | Decode RPO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (30 ratings)](https://appshunter.io/ios/app/predatorx/id6502660468/reviews) | **[4.8 (22 ratings)](https://appshunter.io/ios/app/decode-rpo/id6759104746/reviews)** |
| Number of ratings | **30** | 22 |
| Positive reviews | 28.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 124 MB | 66 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Holley Performance Products](https://appshunter.io/developer/1175069390) | [Vyacheslav Kravchina](https://appshunter.io/developer/1738469819) |

## What reviewers say

### PredatorX

[App page](https://appshunter.io/ios/app/predatorx/id6502660468)

This application enables vehicle tuning through the DS-MFD module. It provides a direct interface for adjusting vehicle performance parameters.

**Highlights:** Vehicle tuning, DS-MFD module integration, Performance adjustment

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Throttle Booster | $29.95 | one-time |
| FlashPaq | $124.99 | one-time |
| PCM Cross Ship | $274.99 | one-time |


### Decode RPO

[App page](https://appshunter.io/ios/app/decode-rpo/id6759104746)

Instantly decode GM vehicle RPO codes by scanning the QR code on your vehicle's label. Get a clear list of factory options installed on your car, making it easy to understand its specifications. Supports 2017 and newer model years.

**Highlights:** Scan GM vehicle QR codes, Decode RPO (Regular Production Option) codes, Get clear descriptions of factory options, Supports 2017+ model years, Simple and intuitive interface

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

**In-app purchases:** none


## Frequently asked questions

### Is PredatorX free?

PredatorX is free to download, with in-app purchases available.

### Is Decode RPO free?

Decode RPO is free to download, with no in-app purchases.

### Which has better reviews, PredatorX or Decode RPO?

Decode RPO is rated higher. PredatorX averages 2.1 out of 5 from 30 ratings, while Decode RPO averages 4.8 from 22 ratings.

### Do PredatorX or Decode RPO have ads?

Neither PredatorX nor Decode RPO shows ads.

### Which is updated more often, PredatorX or Decode RPO?

PredatorX ships an update every 3 weeks, and Decode RPO every 5 days. Most recently, PredatorX was updated on October 8, 2026 and Decode RPO on October 9, 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.*