# Steelmate TPMS vs OBDocker

The clearest difference is rating: OBDocker at 3.9 against Steelmate TPMS's 1.5. OBDocker also leads on update cadence (fortnightly vs every 4 months) and review sentiment (47% vs 25%). Steelmate TPMS's advantage is in-app purchases (none vs 7) and iOS requirement (5.1.1 vs 13.0). On price, ratings volume, 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. Steelmate TPMS asks for nothing beyond the download.

OBDocker holds the better App Store score, 3.9 against 1.5. Both are backed by a comparable volume of ratings — 6 and 17 respectively. Written reviews point the same way: 25% of Steelmate TPMS's written reviews are positive against 47% of OBDocker's.

Steelmate TPMS ships an update every 4 months, OBDocker fortnightly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Steelmate TPMS | OBDocker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (6 ratings)](https://appshunter.io/ios/app/steelmate-tpms/id582186291/reviews) | **[3.9 (17 ratings)](https://appshunter.io/ios/app/obdocker-obd2-car-scanner/id6466999549/reviews)** |
| Number of ratings | 6 | **17** |
| Positive reviews | 24.5% of reviews | **46.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 61 MB | 238 MB |
| Requires iOS | **5.1.1** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gizwits IoT Technology Co., Ltd.](https://appshunter.io/developer/1468450527) | [Motorsure. Inc](https://appshunter.io/developer/1707281085) |

## What reviewers say

### Steelmate TPMS

[App page](https://appshunter.io/ios/app/steelmate-tpms/id582186291)

Monitor your car's tire pressure and temperature in real-time using your iPhone. Receive instant alerts for low/high pressure, leaks, or high temperatures to ensure safe driving.

**Highlights:** Real-time tire pressure and temperature monitoring, Wireless transmission, Audio and visual warning alerts, Easy DIY installation (TPMS-8886), Configurable language and units (Bar, Psi, Kgf/cm2, ℃, ℉)

**Features:** macOS Compatibility

**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 Steelmate TPMS free?

Steelmate TPMS is free to download, with no in-app purchases.

### Is OBDocker free?

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

### Which has better reviews, Steelmate TPMS or OBDocker?

OBDocker is rated higher. Steelmate TPMS averages 1.5 out of 5 from 6 ratings, while OBDocker averages 3.9 from 17 ratings.

### Do Steelmate TPMS or OBDocker have ads?

Neither Steelmate TPMS nor OBDocker shows ads.

### Which is updated more often, Steelmate TPMS or OBDocker?

Steelmate TPMS ships an update every 4 months, and OBDocker fortnightly. Most recently, Steelmate TPMS was updated on October 8, 2026 and OBDocker on October 24, 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.*