# SDPROG vs Steer

The clearest difference is in-app purchases: SDPROG at none against Steer's 2. SDPROG also leads on update cadence (every 9 days vs every 2 months) and iOS requirement (14.0 vs 26.1). Steer's advantage is review sentiment (40% vs 25%). On price, ads and device support there is nothing between them.

Both are free to download. Steer sells 2 in-app purchases, starting at $9.99 per month. SDPROG asks for nothing beyond the download.

SDPROG ships an update every 9 days, Steer every 2 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | SDPROG | Steer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sdprog/id1020589879/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | **40.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | **Free** | Freemium |
| Size | 85 MB | 26 MB |
| Requires iOS | **14.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NexDiag Sp z o. o.](https://appshunter.io/developer/1316943345) | [Smarters Engineered](https://appshunter.io/developer/1821193944) |

## What reviewers say

### SDPROG

[App page](https://appshunter.io/ios/app/sdprog/id1020589879)

This advanced diagnostic tool allows for comprehensive vehicle system analysis, including emission filters and real-time parameter monitoring. It supports cars, motorcycles, ATVs, hybrids, and electric vehicles, offering detailed insights into engine and onboard modules.

**Highlights:** Comprehensive OBD2 and service diagnostics, Advanced emission filter analysis (DPF, FAP, GPF, PEF), Real-time vehicle parameter monitoring, DTC reading and clearing, Support for cars, motorcycles, ATVs, hybrids, and EVs

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

**In-app purchases:** none


### Steer

[App page](https://appshunter.io/ios/app/steer-obd2-car-scanner/id6461049378)

Transform your smartphone into a powerful OBD2 diagnostic tool. Read and clear fault codes, monitor real-time performance metrics, and test your vehicle's acceleration and emissions. Compatible with a wide range of car brands and OBD2 scanners.

**Highlights:** Universal OBD2 scanner compatibility, Read and erase fault codes, Real-time performance metrics, Acceleration and performance testing, Emission compliance checks, Supports various car brands

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBD2 Pro | $9.99 | per month |
| OBD2 Pro | $19.99 | per year |


## Frequently asked questions

### Is SDPROG free?

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

### Is Steer free?

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

### Do SDPROG or Steer have ads?

Neither SDPROG nor Steer shows ads.

### Which is updated more often, SDPROG or Steer?

SDPROG ships an update every 9 days, and Steer every 2 months. Most recently, SDPROG was updated on October 24, 2026 and Steer on October 20, 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.*