# aRacerOBD vs Tech2

The clearest difference is update cadence: Tech2 at every 3 months against aRacerOBD's every 8 months. aRacerOBD's advantage is iOS requirement (10.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

aRacerOBD ships an update every 8 months, Tech2 every 3 months. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | aRacerOBD | Tech2 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 17 MB | 52 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ARACER SPEEDTEK INC.](https://appshunter.io/developer/1218691866) | [ECU=SHOP](https://appshunter.io/developer/1389703440) |

## What reviewers say

### aRacerOBD

[App page](https://appshunter.io/ios/app/aracerobd/id1448664407)

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

**In-app purchases:** none


### Tech2

[App page](https://appshunter.io/ios/app/tech2/id6479217144)

This utility app offers real-time tuning and configuration for various operational modes. It provides advanced customization options for ignition timing, fuel, and compensation, along with anti-theft protection and analysis features.

**Highlights:** Real-time tuning, Anti-theft protection, Multiple operation modes, Injector tuning, Ignition timing tuning, BARO compensation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is aRacerOBD free?

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

### Is Tech2 free?

Tech2 is free to download, with no in-app purchases.

### Do aRacerOBD or Tech2 have ads?

Neither aRacerOBD nor Tech2 shows ads.

### Which is updated more often, aRacerOBD or Tech2?

aRacerOBD ships an update every 8 months, and Tech2 every 3 months. Most recently, aRacerOBD was updated on October 10, 2026 and Tech2 on September 30, 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.*