# Gretio vs CODO Group Lists

The clearest difference is update cadence: Gretio at fortnightly against CODO Group Lists's every 5 weeks. CODO Group Lists's advantage is iOS requirement (14.0.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Gretio sells 4 in-app purchases, starting at $19.99 per year and CODO Group Lists sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Gretio ships an update fortnightly, CODO Group Lists every 5 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Gretio | CODO Group Lists |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (22 ratings)](https://appshunter.io/ios/app/gretio/id1498320180/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 72.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 58 MB |
| Requires iOS | 18.0 | **14.0.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Surreal Development LLC](https://appshunter.io/developer/1498320179) | [Khaled Elabhar](https://appshunter.io/developer/1767368617) |

## What reviewers say

### Gretio

[App page](https://appshunter.io/ios/app/gretio/id1498320180)

This app enables advanced vehicle diagnostics and service functions for General Motors vehicles using an OBDLINK MX+ device. It analyzes data points, looks up trouble codes, and performs service procedures like DPF regenerations.

**Highlights:** Advanced diagnostic functions, Analyze thousands of data points, Look up diagnostic trouble codes, Perform advanced service functions, Exclusive for General Motors vehicles

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gretio All Access | $19.99 | per year |
| Gretio RPO Pack 1 | $29.99 | one-time |
| Gretio RPO Pack 2 | $29.99 | one-time |
| RPO Pack 3 | $29.99 | one-time |


### CODO Group Lists

[App page](https://appshunter.io/ios/app/codo-group-lists/id6756808913)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Codo Pro upgrade | $4.99 | one-time |


## Frequently asked questions

### Is Gretio free?

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

### Is CODO Group Lists free?

CODO Group Lists is free to download, with in-app purchases available.

### Do Gretio or CODO Group Lists have ads?

Neither Gretio nor CODO Group Lists shows ads.

### Which is updated more often, Gretio or CODO Group Lists?

Gretio ships an update fortnightly, and CODO Group Lists every 5 weeks. Most recently, Gretio was updated on October 10, 2026 and CODO Group Lists 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.*