# OBDII Trouble Codes Lite vs Plier

The clearest difference is review sentiment: Plier at 100% against OBDII Trouble Codes Lite's 31%. Plier also leads on rating (4.6 vs 2.1) and ads (none vs shown). OBDII Trouble Codes Lite's advantage is monetization model (ad-supported vs free with in-app purchases). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. OBDII Trouble Codes Lite sells 1 one-off in-app purchase and Plier sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Plier holds the better App Store score, 4.6 against 2.1. Both are backed by a comparable volume of ratings — 7 and 15 respectively. Written reviews point the same way: 31% of OBDII Trouble Codes Lite's written reviews are positive against 100% of Plier's.

OBDII Trouble Codes Lite ships an update every 25 months, Plier weekly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | OBDII Trouble Codes Lite | Plier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (7 ratings)](https://appshunter.io/ios/app/obdii-trouble-codes-lite/id688952518/reviews) | **[4.6 (15 ratings)](https://appshunter.io/ios/app/plier-car-maintenance-tracker/id6742336175/reviews)** |
| Number of ratings | 7 | **15** |
| Positive reviews | 31.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 25 months | **Weekly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 54 MB | 54 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Chumakov](https://appshunter.io/developer/688892120) | [Heap Labs LLC](https://appshunter.io/developer/840318089) |

## What reviewers say

### OBDII Trouble Codes Lite

[App page](https://appshunter.io/ios/app/obdii-trouble-codes-lite/id688952518)

Access a comprehensive database of OBD II diagnostic trouble codes. Quickly look up definitions for generic and manufacturer-specific codes without an internet connection. Easily copy and share code descriptions.

**Highlights:** Extensive OBD II code definitions, Offline access, No car model selection needed, Copy and share descriptions, Supports generic and manufacturer codes

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


### Plier

[App page](https://appshunter.io/ios/app/plier-car-maintenance-tracker/id6742336175)

Transform your iPhone into an AI-powered car diagnostic tool. Connect to your vehicle via an OBD2 device to understand its health, diagnose issues, and estimate repair costs.

**Highlights:** AI-driven diagnostic reports, Real-time OBD2 data and graphs, Check engine light insights, Repair cost estimation, ELM327 Bluetooth compatibility, Troubleshoot engine codes

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Weekly) | $6.99 | per 7 days |
| Pro ( 1 Year ) | $49.99 | per year |


## Frequently asked questions

### Is OBDII Trouble Codes Lite free?

OBDII Trouble Codes Lite is free to download, with in-app purchases available.

### Is Plier free?

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

### Which has better reviews, OBDII Trouble Codes Lite or Plier?

Plier is rated higher. OBDII Trouble Codes Lite averages 2.1 out of 5 from 7 ratings, while Plier averages 4.6 from 15 ratings.

### Do OBDII Trouble Codes Lite or Plier have ads?

OBDII Trouble Codes Lite shows ads; Plier does not.

### Which is updated more often, OBDII Trouble Codes Lite or Plier?

OBDII Trouble Codes Lite ships an update every 25 months, and Plier weekly. Most recently, OBDII Trouble Codes Lite was updated on November 1, 2026 and Plier on November 4, 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.*