# Advancer AD20 vs Firstnum

The clearest difference is review sentiment: Firstnum at 100% against Advancer AD20's 14%. Firstnum also leads on rating (3.0 vs 2.4). Advancer AD20's advantage is ratings volume (62 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Firstnum holds the better App Store score, 3.0 against 2.4. That said, the two scores are not equally well evidenced: Advancer AD20 has 62 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 14% of Advancer AD20's written reviews are positive against 100% of Firstnum's.

Advancer AD20 ships an update monthly, Firstnum every 5 weeks. The most recent releases landed on September 17, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Advancer AD20 | Firstnum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (62 ratings)](https://appshunter.io/ios/app/advancer-ad20/id6444664990/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/firstnum/id6751943843/reviews)** |
| Number of ratings | **62** | 2 |
| Positive reviews | 13.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 496 MB | 88 MB |
| Requires iOS | **12.0** | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [深圳市云伽未来智能技术有限公司](https://appshunter.io/developer/1638728786) | [ShangHai Stoneoim Intelligent Technology Co.,Ltd](https://appshunter.io/developer/1620996149) |

## 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

**In-app purchases:** none


### Firstnum

[App page](https://appshunter.io/ios/app/firstnum/id6751943843)

This utility app is designed for managing device access and logins. It helps users securely log in to control their devices.

**Highlights:** Device login management, Secure access control, User authentication

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

**In-app purchases:** none


## Frequently asked questions

### Is Advancer AD20 free?

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

### Is Firstnum free?

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

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

Firstnum is rated higher. Advancer AD20 averages 2.4 out of 5 from 62 ratings, while Firstnum averages 3.0 from 2 ratings.

### Do Advancer AD20 or Firstnum have ads?

Neither Advancer AD20 nor Firstnum shows ads.

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

Advancer AD20 ships an update monthly, and Firstnum every 5 weeks. Most recently, Advancer AD20 was updated on September 17, 2026 and Firstnum on September 3, 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.*