Comparison

iOBD2 vs NexzScan

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iOBD2

Transform your iPhone or iPod touch into a powerful vehicle diagnostic tool for VW, SKODA, AUDI, and SEAT cars. Read and clear fault codes with model-specific explanations, accessing more data than standard OBD readers.

Highlights
  • Vehicle diagnostic tool
  • Read fault codes
  • Clear fault codes
  • Model-specific explanations
  • Access all compatible ECUs
  • In-depth car checks
Features
Read full description

iOBD2-VW is an app for your VW/SKODA/AUDI/SEAT car. It makes your iPhone/iPod touch into a cool vehicle diagnostic tool to read VW/SKODA/AUDI/SEAT car data. With this app you can read out VW/SKODA/AUDI/SEAT fault codes like the experts. While OBD Readers are limited to a small number of electronic control units and even a smaller number of fault codes, this app reads out practically all compatible electronic control units. Normally this is only possible with very expensive expert equipment. Now you can check your car yourself in-depth! It provides model specific fault code explanations, and you can even clear the stored VW/SKODA/AUDI/SEAT fault codes - not just OBD! Note: This software can only work with the iOBD2 interface which was activated successfully from XTooltech Company. For more details, please contact the seller.Thanks! Visit the iOBD2 product page for more info: www.iobd2.com

About

NexzScan

This tool helps diagnose car engine issues by connecting to your vehicle's OBD port. It provides detailed reports on error codes, their causes, and live data, making car repair more efficient and accessible. The app offers a user-friendly interface and comprehensive vehicle support.

Highlights
  • Read and clear engine codes
  • Detailed diagnosis reports
  • Customized live data display
  • Powerful DTC definition database
  • One-key app updates
  • Bluetooth 4.2 connection
Features
Read full description

NexzScan OBD2 Scanner is a high cost-effective, portable and professional tool which supports almost all gasoline cars after 2000 till now, making car repair easier. It is designed with VCI+ FREE App with powerful database and detailed diagnosis report, offering you not only the code definition, but a list of possible causes, greatly increases the repair efficiency. It is easy to operate, just plug the sensor to the OBD port and pair it with your phone through Bluetooth 4.2. From then on, do no need to worry about the Check Engine Light on anymore. Highlight: - High Cost-effective Device: Compared with the handheld tools and other scanners, NexzScan is designed with the character of higher cost-effective, more customized and user-friendly, saving you both time and money. - Enhanced OBD Diagnosis: Fully covers OBD diagnosis Modes, not only includes read & clear codes, freeze frame, but O2 sensor, Smog Check, Battery Test, MIL Status, etc. all available. - Detailed Diagnosis Report: For each DTC, the code definition as well as possible causes are listed clearly by simple and easy-to-understand explanation instead of confusing terms. - Powerful Database: Exclusively provides nearly 40K kinds DTC definition & vehicle information query, leading the industry. - Customized Live Data: Diversified live data display method: digital, dashboard and graph display. Meanwhile, you can merge multi-parameters in one graph and see how they affect each other. - Data Mange: Provides the platform to review the stored data in time, both images and videos. - One-Key Update in App: No PC, no USB, no SD card are needed. Click the upgrade information and update it into the latest version within the App in time. Features: -Bluetooth 4.2 fast and stable connection. -Support all standard OBD2 protocols: SAE_J1850(PWM,VPW), ISO_9141-2, ISO_14230-4(KWP, KWP-FAST), ISO_15765-4(CAN, CAN-B,CAN-C,CAN-D), SAE_J1939(CAN), USER1,USER2. -Wide vehicle coverage: Works on any gasoline car (Japan, Canada, US, EU, etc.)with standard OBD2 DLC,including 57 brands. -Codes reading: retrieves confirmed codes, pending codes and current codes. -Supports multi ECU code reading: from 7E8 to 7EF(including Engine, Transmission and other control modules). -Enhanced DTC analysis: code definition, code description, code symptoms, code causes listed clearly . -Clear and visualized UI: provides you with easy-to-operate guide, no confusing terms. Function: -Read and Clear Codes: Read and clear engine codes. -Freeze Frame: A snapshot of the vehicle when the code is stored. -Live Data: DIY diversified PID display methods and multi-parameters comparison. -O2 Sensor: Check the vehicle O2 sensor values. -Smog Check: Check if the vehicle is ready for a smog or emissions test. -MIL Status: Diagnose the car when the Malfunction Indicator Lamp is on. -Mode 6: Advanced test results (like misfire counts) for on-board diagnostic system monitors. -Battery Test: Show battery voltage and comment battery status.

Screenshots

iOBD24 screens
NexzScan3 screens

Verdict

The call

The clearest difference is update cadence: NexzScan at every 3 weeks against iOBD2's every 3 months. NexzScan also leads on ratings volume (27 vs 9). iOBD2's advantage is review sentiment (17% vs 7%) and iOS requirement (7.0 vs 15.6). On price, rating, ads 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

iOBD2 holds the better App Store score, 2.3 against 2.1. Both are backed by a comparable volume of ratings — 9 and 27 respectively. Written reviews point the same way: 17% of iOBD2's written reviews are positive against 7% of NexzScan's.

UpkeepUpdate frequency

iOBD2 ships an update every 3 months, NexzScan every 3 weeks. The most recent releases landed on July 24, 2026 and September 19, 2026 respectively.

Scorecard4 real differences · 6 level
iOBD2 versus NexzScan: the parameters behind the verdict, then further details
ParameteriOBD2NexzScan
PriceFreeFree
Rating2.3 (9 ratings) — better2.1 (27 ratings)
Positive reviews16.7% of reviews — better7.1% of reviews
Number of ratings927 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.6
Further details — not scored
Size40 MB141 MB
Age rating4+4+
Developer翔宇 金美泉 黄

Customer experience

iOBD2

All ratings9 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews42 reviews
Positive16.7%
Neutral4.8%
Negative78.6%

NexzScan

All ratings27 ratings
Positive25.9%
Neutral3.7%
Negative70.4%
Written reviews14 reviews
Positive7.1%
Neutral0.0%
Negative92.9%

In-app purchases

None

iOBD2

No in-app purchases

None

NexzScan

No in-app purchases

Questions

Is iOBD2 free?
iOBD2 is free to download, with no in-app purchases.
Is NexzScan free?
NexzScan is free to download, with no in-app purchases.
Which has better reviews, iOBD2 or NexzScan?
iOBD2 is rated higher. iOBD2 averages 2.3 out of 5 from 9 ratings, while NexzScan averages 2.1 from 27 ratings.
Do iOBD2 or NexzScan have ads?
Neither iOBD2 nor NexzScan shows ads.
Which is updated more often, iOBD2 or NexzScan?
iOBD2 ships an update every 3 months, and NexzScan every 3 weeks. Most recently, iOBD2 was updated on July 24, 2026 and NexzScan on September 19, 2026.

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