# Advancer AD20 vs Chainsaw Chain Finder

The clearest difference is in-app purchases: Advancer AD20 at none against Chainsaw Chain Finder's 1. Advancer AD20 also leads on iOS requirement (13.0 vs 16.4). Chainsaw Chain Finder's advantage is update cadence (daily vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Chainsaw Chain Finder sells 1 one-off in-app purchase. Advancer AD20 asks for nothing beyond the download.

Advancer AD20 ships an update monthly, Chainsaw Chain Finder daily. The most recent releases landed on October 30, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Advancer AD20 | Chainsaw Chain Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (65 ratings)](https://appshunter.io/ios/app/advancer-ad20/id6444664990/reviews)** | — |
| Number of ratings | **65** | — |
| Positive reviews | 13.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free | — |
| Size | 533 MB | 37 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [深圳市云伽未来智能技术有限公司](https://appshunter.io/developer/1638728786) | [EVREN YUCEBAS](https://appshunter.io/developer/6782353474) |

## What reviewers say

### 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


### Chainsaw Chain Finder

[App page](https://appshunter.io/ios/app/chainsaw-chain-finder/id6805040134)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $4.99 | one-time |


## Frequently asked questions

### Is Advancer AD20 free?

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

### Is Chainsaw Chain Finder free?

Chainsaw Chain Finder is free to download, with in-app purchases available.

### Do Advancer AD20 or Chainsaw Chain Finder have ads?

Neither Advancer AD20 nor Chainsaw Chain Finder shows ads.

### Which is updated more often, Advancer AD20 or Chainsaw Chain Finder?

Advancer AD20 ships an update monthly, and Chainsaw Chain Finder daily. Most recently, Advancer AD20 was updated on October 30, 2026 and Chainsaw Chain Finder on October 4, 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.*