# ClassDoio vs Authenticator app

The clearest difference is device support: Authenticator app at 4 against ClassDoio's 2. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. ClassDoio sells 2 in-app purchases, starting at $5.99 per 7 days and Authenticator app sells 1 in-app purchase, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | ClassDoio | Authenticator app |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Size | 16 MB | 12 MB |
| Requires iOS | **15** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Jake's Quiz Ltd](https://appshunter.io/developer/1838668168) | [AttestNet](https://appshunter.io/developer/1896768336) |

## What reviewers say

### ClassDoio

[App page](https://appshunter.io/ios/app/classdoio-assistant-school/id6756572584)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClassDoio Pro | $5.99 | per 7 days |
| ClassDoio Trial | $5.99 | per 7 days |


### Authenticator app

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-mfa/id6781687744)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CardVault Weekly 3 days Trial | $9.99 | per 7 days |


## Frequently asked questions

### Is ClassDoio free?

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

### Is Authenticator app free?

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

### Do ClassDoio or Authenticator app have ads?

Neither ClassDoio nor Authenticator app shows ads.

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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.*