# Gretio vs Cold Bore

The clearest difference is rating: Gretio at 3.8 against Cold Bore's 3.0. Gretio also leads on ratings volume (23 vs 2) and update cadence (fortnightly vs monthly). Cold Bore's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Gretio sells 4 in-app purchases, starting at $19.99 per year and Cold Bore sells 1 in-app purchase, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

Gretio holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: Gretio has 23 ratings behind it against 2, so its average is the more settled of the two.

Gretio ships an update fortnightly, Cold Bore monthly. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Gretio | Cold Bore |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (23 ratings)](https://appshunter.io/ios/app/gretio/id1498320180/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/cold-bore/id6757907438/reviews) |
| Number of ratings | **23** | 2 |
| Positive reviews | 68.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 47 MB | 46 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Surreal Development LLC](https://appshunter.io/developer/1498320179) | [Michael Remington](https://appshunter.io/developer/1865398725) |

## What reviewers say

### Gretio

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

This app enables advanced vehicle diagnostics and service functions when paired with specific OBD-II hardware. It allows users to analyze extensive data points, look up trouble codes across various vehicle modules, and perform specialized maintenance tasks. Designed for DIY enthusiasts, it requires adherence to vehicle manufacturer guidelines.

**Highlights:** Advanced vehicle diagnostics, Analyze thousands of data points, Diagnostic trouble code lookup, Perform service functions (DPF regen, SCR tests), Program vehicle features, Supports diesel, gas, electric, hybrid 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 | $34.99 | one-time |
| Gretio RPO Pack 2 | $34.99 | one-time |
| RPO Pack 3 | $34.99 | one-time |


### Cold Bore

[App page](https://appshunter.io/ios/app/cold-bore/id6757907438)

This app helps precision shooters log performance, manage gear, and make informed decisions. It offers session logging, cold-bore tracking, ballistic tools, and maintenance records in a streamlined workflow.

**Highlights:** Session logging with weather and notes, Cold-bore impact tracking, Rifle and ammo management, Ballistic estimates, DOPE management, Maintenance records, Shot timer and audio counter

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cold Bore Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is Gretio free?

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

### Is Cold Bore free?

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

### Which has better reviews, Gretio or Cold Bore?

Gretio is rated higher. Gretio averages 3.8 out of 5 from 23 ratings, while Cold Bore averages 3.0 from 2 ratings.

### Do Gretio or Cold Bore have ads?

Neither Gretio nor Cold Bore shows ads.

### Which is updated more often, Gretio or Cold Bore?

Gretio ships an update fortnightly, and Cold Bore monthly. Most recently, Gretio was updated on November 11, 2026 and Cold Bore on November 5, 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.*