# KENNOL vs Advancer AD20

The clearest difference is ads: Advancer AD20 at none against KENNOL's shown. Advancer AD20 also leads on update cadence (monthly vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

KENNOL ships an update every 6 months, Advancer AD20 monthly. Both last shipped on October 12, 2026.

## The numbers

| Metric | KENNOL | Advancer AD20 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.4 (62 ratings)](https://appshunter.io/ios/app/advancer-ad20/id6444664990/reviews)** |
| Number of ratings | — | **62** |
| Positive reviews | — | 13.9% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | — | Free |
| Size | 41 MB | 496 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [KENNOL Performance Oil](https://appshunter.io/developer/1230953709) | [深圳市云伽未来智能技术有限公司](https://appshunter.io/developer/1638728786) |

## What reviewers say

### KENNOL

[App page](https://appshunter.io/ios/app/kennol/id690126350)

**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

**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 KENNOL free?

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

### Is Advancer AD20 free?

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

### Do KENNOL or Advancer AD20 have ads?

KENNOL shows ads; Advancer AD20 does not.

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

KENNOL ships an update every 6 months, and Advancer AD20 monthly. Most recently, KENNOL was updated on October 12, 2026 and Advancer AD20 on October 12, 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.*