# OBDSTAR vs TopScan Pad

The clearest difference is rating: TopScan Pad at 4.4 against OBDSTAR's 1.5. TopScan Pad also leads on ads (none vs shown) and monetization model (free vs ad-supported). OBDSTAR's advantage is device support (3 vs 1). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

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

TopScan Pad holds the better App Store score, 4.4 against 1.5. Both are backed by a comparable volume of ratings — 4 and 5 respectively.

OBDSTAR ships an update every 6 months, TopScan Pad every 4 months. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | OBDSTAR | TopScan Pad |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (4 ratings)](https://appshunter.io/ios/app/obdstar/id6447170127/reviews) | **[4.4 (5 ratings)](https://appshunter.io/ios/app/topscan-pad/id6476964730/reviews)** |
| Number of ratings | 4 | **5** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Ad-supported | **Free** |
| Size | 122 MB | 2.2 GB |
| Requires iOS | 15.5 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 4+ |
| Developer | [深圳市轩宇车鼎科技有限公司](https://appshunter.io/developer/1680461221) | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) |

## What reviewers say

### OBDSTAR

[App page](https://appshunter.io/ios/app/obdstar/id6447170127)

A handheld maintenance database for technicians, offering technical support, data queries, video viewing, and after-sales consultation. It provides a comprehensive database for automotive, motorcycle, and marine maintenance, aiming for efficient and professional service.

**Highlights:** Handheld maintenance database, Technical support, Data query, Video viewing, After-sales consultation, Comprehensive maintenance data

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

**In-app purchases:** none


### TopScan Pad

[App page](https://appshunter.io/ios/app/topscan-pad/id6476964730)

Transform your tablet into a powerful vehicle diagnostic tool with this app. It offers comprehensive system scans, bi-directional controls, and special maintenance functions for over 100 car brands. Easily identify and resolve vehicle issues with detailed reports and a repair data library.

**Highlights:** Full-system diagnosis, Bi-directional controls, AutoVIN vehicle identification, Special maintenance functions, Wireless Bluetooth 5.0 connection, Diagnostic report generation, Repair data library

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

**In-app purchases:** none


## Frequently asked questions

### Is OBDSTAR free?

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

### Is TopScan Pad free?

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

### Which has better reviews, OBDSTAR or TopScan Pad?

TopScan Pad is rated higher. OBDSTAR averages 1.5 out of 5 from 4 ratings, while TopScan Pad averages 4.4 from 5 ratings.

### Do OBDSTAR or TopScan Pad have ads?

OBDSTAR shows ads; TopScan Pad does not.

### Which is updated more often, OBDSTAR or TopScan Pad?

OBDSTAR ships an update every 6 months, and TopScan Pad every 4 months. Most recently, OBDSTAR was updated on October 9, 2026 and TopScan Pad on October 16, 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.*