# Decode RPO vs Skydive Sim Instructor

The clearest difference is update cadence: Decode RPO at every 5 days against Skydive Sim Instructor's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Decode RPO ships an update every 5 days, Skydive Sim Instructor every 4 weeks. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Decode RPO | Skydive Sim Instructor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (22 ratings)](https://appshunter.io/ios/app/decode-rpo/id6759104746/reviews)** | — |
| Number of ratings | **22** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 4 weeks |
| Monetization | Ad-supported | — |
| Size | 66 MB | 87 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Vyacheslav Kravchina](https://appshunter.io/developer/1738469819) | [Skydive Sim](https://appshunter.io/developer/6804445232) |

## What reviewers say

### 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


### Skydive Sim Instructor

[App page](https://appshunter.io/ios/app/skydive-sim-instructor/id6804445230)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decode RPO free?

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

### Is Skydive Sim Instructor free?

Skydive Sim Instructor is free to download, with no in-app purchases.

### Do Decode RPO or Skydive Sim Instructor have ads?

Neither Decode RPO nor Skydive Sim Instructor shows ads.

### Which is updated more often, Decode RPO or Skydive Sim Instructor?

Decode RPO ships an update every 5 days, and Skydive Sim Instructor every 4 weeks. Most recently, Decode RPO was updated on October 9, 2026 and Skydive Sim Instructor on October 6, 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.*