# AIOBD13 vs Advancer AD20

The clearest difference is rating: Advancer AD20 at 2.4 against AIOBD13's 1.0. Advancer AD20 also leads on ratings volume (64 vs 2) and update cadence (monthly vs every 2 months). AIOBD13's advantage is review sentiment (50% vs 14%) and iOS requirement (7.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Advancer AD20 holds the better App Store score, 2.4 against 1.0. That said, the two scores are not equally well evidenced: Advancer AD20 has 64 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of AIOBD13's written reviews are positive against 14% of Advancer AD20's, so the app with the better star average is not the one people write more warmly about.

AIOBD13 ships an update every 2 months, Advancer AD20 monthly. The most recent releases landed on September 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | AIOBD13 | Advancer AD20 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/aiobd13/id958457297/reviews) | **[2.4 (64 ratings)](https://appshunter.io/ios/app/advancer-ad20/id6444664990/reviews)** |
| Number of ratings | 2 | **64** |
| Positive reviews | **50.0% of reviews** | 13.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 52 MB | 533 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [翔宇 金](https://appshunter.io/developer/528881861) | [深圳市云伽未来智能技术有限公司](https://appshunter.io/developer/1638728786) |

## What reviewers say

### AIOBD13

[App page](https://appshunter.io/ios/app/aiobd13/id958457297)

Connects to your vehicle's diagnostic system via Bluetooth to read and log engine data on iOS devices. Monitor your car's performance and driving habits to improve MPG and maintain optimal operation.

**Highlights:** Bluetooth diagnostic system connection, Reads and logs engine data, Monitors vehicle conditions, Improves MPG tracking, Tracks driving habits, Supports OBDII/EOBD compliant vehicles since 1996

**Features:** macOS Compatibility

**In-app purchases:** none


### Advancer AD20

[App page](https://appshunter.io/ios/app/advancer-ad20/id6444664990)

This app connects to a smart OBD dongle to provide vehicle health checks, diagnosis, and real-time monitoring. It helps identify fault codes, analyze driving habits, and offers maintenance reminders for enhanced driving safety.

**Highlights:** OBD-II Diagnosis, In-depth system check, Live vehicle data monitoring, Maintenance light reset, Trip recorder, Driving habits analysis

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy installation and pairing
- 👍 Straightforward iPad pairing
- 👍 Full diagnostic capabilities
- 👍 Satisfied with results
- 👍 Works as expected for some users

**What reviewers complain about**

- 🐛 Cannot connect to device
- 🐛 Scanner tied to another account
- 🐛 Required account creation
- 🐛 Invalid email for account creation
- 🐛 Does not connect to specific car models

**Reported bugs**

- Cannot connect to scanner
- Scanner tied to another account
- Account creation issues (invalid email)
- Device stops working after registration
- Login timeouts

**Requested features**

- Add more languages, including Chinese
- Improve information availability for various car models
- Fix issues with iOS updates
- Improve app layout and navigation
- Increase text size and contrast


## Frequently asked questions

### Is AIOBD13 free?

AIOBD13 is free to download, with no in-app purchases.

### Is Advancer AD20 free?

Advancer AD20 is free to download, with no in-app purchases.

### Which has better reviews, AIOBD13 or Advancer AD20?

Advancer AD20 is rated higher. AIOBD13 averages 1.0 out of 5 from 2 ratings, while Advancer AD20 averages 2.4 from 64 ratings.

### Do AIOBD13 or Advancer AD20 have ads?

Neither AIOBD13 nor Advancer AD20 shows ads.

### Which is updated more often, AIOBD13 or Advancer AD20?

AIOBD13 ships an update every 2 months, and Advancer AD20 monthly. Most recently, AIOBD13 was updated on September 25, 2026 and Advancer AD20 on October 27, 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.*