# AutoDoctor vs 2FA.Authenticator

The clearest difference is update cadence: 2FA.Authenticator at fortnightly against AutoDoctor's every 5 months. AutoDoctor's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. AutoDoctor sells 1 in-app purchase, starting at $4.99 per 7 days and 2FA.Authenticator sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

AutoDoctor ships an update every 5 months, 2FA.Authenticator fortnightly. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | AutoDoctor | 2FA.Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/autodoctor-obd2-car-scanner/id6753275707/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Subscription | — |
| Size | 42 MB | 6 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Gowalk - Fzco](https://appshunter.io/developer/1701769855) | [Murat Dikenci](https://appshunter.io/developer/1840677360) |

## What reviewers say

### AutoDoctor

[App page](https://appshunter.io/ios/app/autodoctor-obd2-car-scanner/id6753275707)

Transform your smartphone into a powerful car diagnostic tool. Connect to your OBD2 scanner to read fault codes, clear warning lights, and monitor real-time engine data. Ideal for car enthusiasts and those looking to save on repair costs.

**Highlights:** Connect via Bluetooth/Wi-Fi OBD2 adapters, Read and clear fault codes, View live engine parameters, Detailed diagnostics, Works with most OBD2 vehicles, Real-time diagnostics, Advanced performance metrics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $4.99 | per 7 days |


### 2FA.Authenticator

[App page](https://appshunter.io/ios/app/2faauthenticator-securekey/id6755472545)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Pro | $4.99 | per 7 days |
| Authenticator Pro | $39.99 | per year |


## Frequently asked questions

### Is AutoDoctor free?

AutoDoctor is free to download, with in-app purchases available.

### Is 2FA.Authenticator free?

2FA.Authenticator is free to download, with in-app purchases available.

### Do AutoDoctor or 2FA.Authenticator have ads?

Neither AutoDoctor nor 2FA.Authenticator shows ads.

### Which is updated more often, AutoDoctor or 2FA.Authenticator?

AutoDoctor ships an update every 5 months, and 2FA.Authenticator fortnightly. Most recently, AutoDoctor was updated on October 11, 2026 and 2FA.Authenticator on October 2, 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.*