OBDSTAR vs TopScan Pad
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OBDSTAR
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.
- Handheld maintenance database
- Technical support
- Data query
- Video viewing
- After-sales consultation
- Comprehensive maintenance data
Read full descriptionHide full description
"OBDSTAR" APP is a handheld maintenance database designed for maintenance technicians. It is a service APP that can bring more convenient, efficient and professional services to end-users, integrating technical support, data query, video viewing, after-sales consultation, feedback and other multi-functions. It supports a comprehensive maintenance data query database for automobiles, motorcycles, ships, etc. With powerful functions and excellent experience, it is a practical service platform for maintenance technicians to solve their problems.
TopScan Pad
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.
- Full-system diagnosis
- Bi-directional controls
- AutoVIN vehicle identification
- Special maintenance functions
- Wireless Bluetooth 5.0 connection
- Diagnostic report generation
- Repair data library
Read full descriptionHide full description
Connect the TopScan to your Tablet via Bluetooth and turn your devices into a smart and powerful diagnostic tool! The Bluetooth OBDII scan tool is loaded with essential features such as full OBDII functionality, full system diagnosis, bi-directional controls, autoVIN, automatic diagnostic reports, and more. Maintenance service functions and coverage for 100+ vehicle brands make the Topscan a versatile and portable auto scanner for technicians. Key Features: 1. Full-system diagnosis: Engine, Transmission, Airbag, ABS, ESP, TPMS, Immobilizer, Gateway, Steering, Radio, Air Conditioning and more. 2. All-system diagnostic basic functions: access ECU info, read fault codes, clear fault codes, read data stream. 3. Special functions: Oil reset, throttle adaptation, EPB reset, BMS reset, and more. 4. Bi-directional control to target problems easily. 4. AutoVIN for automatic vehicle identification and quick diagnosis. 5. Wireless connection, Bluetooth 5.0 with a range of 33 feet/10m. Works on iOS 11.0 or above, compact and portable. 6. Repair data library: DTC repair guide, technical service bulletin, DLC location, warning light library. 7. Graph, value and dashboard-like data display for easy interpretation. 8. Generate diagnostic reports for system, fault Codes, or data streams. 9. Feedback function enables users to submit issues and requests to us in a convenient way.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | OBDSTAR | TopScan Pad |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (4 ratings) | 4.4 (5 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 | 5 — better |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 15.5 | 11.0 — better |
| Further details — not scored | ||
| Size | 122 MB | 2.2 GB |
| Age rating | 17+ | 4+ |
| Developer | 深圳市轩宇车鼎科技有限公司 | HK TOPDON TECHNOLOGY Co., LIMITED |
Customer experience
OBDSTAR
TopScan Pad
In-app purchases
OBDSTAR
No in-app purchases
TopScan Pad
No in-app purchases









