# OBDII Trouble Codes vs Barrier BY

The clearest difference is price: Barrier BY at Free against OBDII Trouble Codes's $3.99. Barrier BY also leads on update cadence (weekly vs every 25 months). OBDII Trouble Codes's advantage is iOS requirement (13.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Barrier BY is free to download; OBDII Trouble Codes costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OBDII Trouble Codes ships an update every 25 months, Barrier BY weekly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OBDII Trouble Codes | Barrier BY |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 21.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Weekly** |
| Monetization | Paid | — |
| Size | 54 MB | 33 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Chumakov](https://appshunter.io/developer/688892120) | [MF MEDIA LEND](https://appshunter.io/developer/1880392802) |

## What reviewers say

### OBDII Trouble Codes

[App page](https://appshunter.io/ios/app/obdii-trouble-codes/id688892117)

Access a comprehensive offline database of over 18,500 diagnostic trouble codes for cars. Simply enter a fault code to get detailed descriptions without needing an internet connection or car model selection.

**Highlights:** Offline OBD2/EOBD code database, Over 18,500 error descriptions, No internet connection required, Simple fault code entry, Supports generic and manufacturer-specific codes, Copy and paste error descriptions

**Features:** macOS Compatibility

**In-app purchases:** none


### Barrier BY

[App page](https://appshunter.io/ios/app/barrier-by/id6759730917)

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

**In-app purchases:** none


## Frequently asked questions

### Is OBDII Trouble Codes free?

OBDII Trouble Codes costs $3.99, with no in-app purchases.

### Is Barrier BY free?

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

### Do OBDII Trouble Codes or Barrier BY have ads?

Neither OBDII Trouble Codes nor Barrier BY shows ads.

### Which is updated more often, OBDII Trouble Codes or Barrier BY?

OBDII Trouble Codes ships an update every 25 months, and Barrier BY weekly. Most recently, OBDII Trouble Codes was updated on October 29, 2026 and Barrier BY on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*