# FOBD vs ZDOBD

The clearest difference is rating: FOBD at 5.0 against ZDOBD's 2.0. FOBD also leads on review sentiment (25% vs 0%) and monetization model (free vs free with in-app purchases). ZDOBD's advantage is update cadence (monthly vs every 3 months) and ratings volume (4 vs 1). 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.

FOBD holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 25% of FOBD's written reviews are positive against 0% of ZDOBD's.

FOBD ships an update every 3 months, ZDOBD monthly. The most recent releases landed on October 3, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | FOBD | ZDOBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fobd/id1444576506/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/zdobd/id6449920963/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 48 MB | 22 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市爱夫卡科技有限公司](https://appshunter.io/developer/980516490) | [深圳市正德友邦科技有限公司](https://appshunter.io/developer/1691030696) |

## What reviewers say

### FOBD

[App page](https://appshunter.io/ios/app/fobd/id1444576506)

This app functions as a diagnostic scan tool, trip computer, logger, and real-time performance monitor for vehicles. It offers features like OBD-II diagnostics, HUD display, DTC code lookup, and oil reset. Supports English, Spanish, and Russian languages.

**Highlights:** OBD-II Diagnostics, Trip Computer, Data Logger, Real-time Performance Monitor, DTC Code Lookup, Oil Reset

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is FOBD free?

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

### Is ZDOBD free?

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

### Which has better reviews, FOBD or ZDOBD?

FOBD is rated higher. FOBD averages 5.0 out of 5 from 1 ratings, while ZDOBD averages 2.0 from 4 ratings.

### Do FOBD or ZDOBD have ads?

Neither FOBD nor ZDOBD shows ads.

### Which is updated more often, FOBD or ZDOBD?

FOBD ships an update every 3 months, and ZDOBD monthly. Most recently, FOBD was updated on October 3, 2026 and ZDOBD on September 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.*