# GPS Master Pro vs OBDocker

The clearest difference is in-app purchases: GPS Master Pro at none against OBDocker's 7. OBDocker's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OBDocker sells 7 in-app purchases, starting at $2.99 per month. GPS Master Pro asks for nothing beyond the download.

GPS Master Pro ships an update every 3 weeks, OBDocker fortnightly. The most recent releases landed on September 18, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | GPS Master Pro | OBDocker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (17 ratings)](https://appshunter.io/ios/app/obdocker-obd2-car-scanner/id6466999549/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 48.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 68 MB | 238 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Josue Moreno](https://appshunter.io/developer/1615979486) | [Motorsure. Inc](https://appshunter.io/developer/1707281085) |

## What reviewers say

### GPS Master Pro

[App page](https://appshunter.io/ios/app/gps-master-pro/id1615979484)

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

**In-app purchases:** none


### OBDocker

[App page](https://appshunter.io/ios/app/obdocker-obd2-car-scanner/id6466999549)

This app acts as a professional OBD2 car scanner, enabling users to diagnose, service, and customize their vehicles. It offers comprehensive diagnostic modes, real-time data monitoring, and various service functions like oil resets and battery registration.

**Highlights:** Triple-mode diagnostics (Full-Systems, Multi-Systems, Quick Scan), Triple-mode live data monitoring (Health, Engine, Dash), Full-cycle service functions (Emissions Pre-Check, Control Tests, Oil Reset, Battery Registration), One-click car setting adjustments and retrofits, Supports a wide range of car brands and models

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBD Pro (Monthly) | $2.99 | per month |
| OBD Pro Max (Monthly) | $7.99 | per month |
| OBD2 Pro (6 Months) | $14.99 | per 6 months |
| OBD Pro (Annual) | $17.99 | per year |
| Mechanic Access (Quarterly) | $19.99 | per 3 months |
| OBD Pro Max (Annual) | $47.99 | per year |
| OBD Pro Max (Permanent) | $119.99 | one-time |


## Frequently asked questions

### Is GPS Master Pro free?

GPS Master Pro is free to download, with no in-app purchases.

### Is OBDocker free?

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

### Do GPS Master Pro or OBDocker have ads?

Neither GPS Master Pro nor OBDocker shows ads.

### Which is updated more often, GPS Master Pro or OBDocker?

GPS Master Pro ships an update every 3 weeks, and OBDocker fortnightly. Most recently, GPS Master Pro was updated on September 18, 2026 and OBDocker on September 22, 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.*