# BAS2 RRC vs Troodon OBD

The clearest difference is update cadence: Troodon OBD at every 3 weeks against BAS2 RRC's every 47 months. BAS2 RRC's advantage is iOS requirement (9.0 vs 15.0). 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.

BAS2 RRC ships an update every 47 months, Troodon OBD every 3 weeks. The most recent releases landed on September 19, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | BAS2 RRC | Troodon OBD |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 25 MB | 27 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bell Auto Services Ltd](https://appshunter.io/developer/791753350) | [DevCom spol. s r.o.](https://appshunter.io/developer/1725153456) |

## What reviewers say

### BAS2 RRC

[App page](https://appshunter.io/ios/app/bas2-rrc/id994176921)

Control an engine diagnostic tool for CAN-based cars. Read and clear fault codes, view live engine data graphically or numerically, and perform ECU service tests. Access ECU information and more through your iPhone or iPad.

**Highlights:** Fault code reading and clearing, Engine live data (numerical/graphical), ECU service tests, ECU information, Bluetooth Smart control

**Features:** macOS Compatibility

**In-app purchases:** none


### Troodon OBD

[App page](https://appshunter.io/ios/app/troodon-obd/id6475777811)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BAS2 RRC free?

BAS2 RRC is free to download, with no in-app purchases.

### Is Troodon OBD free?

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

### Do BAS2 RRC or Troodon OBD have ads?

Neither BAS2 RRC nor Troodon OBD shows ads.

### Which is updated more often, BAS2 RRC or Troodon OBD?

BAS2 RRC ships an update every 47 months, and Troodon OBD every 3 weeks. Most recently, BAS2 RRC was updated on September 19, 2026 and Troodon OBD on September 13, 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.*