# ZDOBD vs Proformance Link

The clearest difference is review sentiment: Proformance Link at 100% against ZDOBD's 0%. Proformance Link also leads on rating (4.0 vs 2.0) and monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and ads there is nothing between them.

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

Proformance Link holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 0% of ZDOBD's written reviews are positive against 100% of Proformance Link's.

ZDOBD ships an update monthly, Proformance Link every 2 weeks. The most recent releases landed on September 8, 2026 and July 24, 2026 respectively.

## The numbers

| Metric | ZDOBD | Proformance Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/zdobd/id6449920963/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/proformance-link/id6755274184/reviews)** |
| Number of ratings | 4 | 4 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 22 MB | 94 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [深圳市正德友邦科技有限公司](https://appshunter.io/developer/1691030696) | [Proformance Diagnostics LLC](https://appshunter.io/developer/1852904316) |

## What reviewers say

### ZDOBD

[App page](https://appshunter.io/ios/app/zdobd/id6449920963)

This diagnostic tool connects to portable diesel vehicle devices via Bluetooth to perform comprehensive vehicle checks. It allows users to view ECU information, diagnose and clear faults, monitor real-time data, and conduct specific tests like DPF regeneration.

**Highlights:** Bluetooth connectivity, ECU version information, Vehicle fault diagnosis and clearing, Real-time data flow monitoring, DPF regeneration, SCR testing

**Features:** macOS Compatibility

**In-app purchases:** none


### Proformance Link

[App page](https://appshunter.io/ios/app/proformance-link/id6755274184)

This diagnostic tool connects to trucks via Bluetooth to read and clear fault codes, monitor data streams, and perform DPF regeneration and speed limit calibration. It supports various popular truck engine models and offers real-time updates for advanced functions.

**Highlights:** Bluetooth connectivity, Fault code lookup and clearing, Data stream viewing, DPF regeneration and reset, Speed limit calibration, Supports multiple engine models

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

**In-app purchases:** none


## Frequently asked questions

### Is ZDOBD free?

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

### Is Proformance Link free?

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

### Which has better reviews, ZDOBD or Proformance Link?

Proformance Link is rated higher. ZDOBD averages 2.0 out of 5 from 4 ratings, while Proformance Link averages 4.0 from 4 ratings.

### Do ZDOBD or Proformance Link have ads?

Neither ZDOBD nor Proformance Link shows ads.

### Which is updated more often, ZDOBD or Proformance Link?

ZDOBD ships an update monthly, and Proformance Link every 2 weeks. Most recently, ZDOBD was updated on September 8, 2026 and Proformance Link on July 24, 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.*