# Authenticator & Notes vs Secret Notes

The clearest difference is iOS requirement: Authenticator & Notes at 18.6 against Secret Notes's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Authenticator & Notes sells 3 in-app purchases, starting at $1.99 per month and Secret Notes sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Authenticator & Notes ships an update every 3 weeks, Secret Notes every 2 weeks. The most recent releases landed on October 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Authenticator & Notes | Secret Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 71 MB | 9 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Luiz Antonio Rosa Cardoso](https://appshunter.io/developer/1815372392) | [Lukasz Macczak](https://appshunter.io/developer/1475437697) |

## What reviewers say

### Authenticator & Notes

[App page](https://appshunter.io/ios/app/authenticator-and-notes-lockat/id6761867295)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lockat Pro Monthly | $1.99 | per month |
| Lockat Pro Yearly | $19.99 | per year |
| Lockat Pro Lifetime | $29.99 | one-time |


### Secret Notes

[App page](https://appshunter.io/ios/app/secret-notes-trove/id6771124197)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Secure Notes - Weekly | $2.99 | per 7 days |
| SecureNotes Monthly | $9.99 | per month |


## Frequently asked questions

### Is Authenticator & Notes free?

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

### Is Secret Notes free?

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

### Do Authenticator & Notes or Secret Notes have ads?

Neither Authenticator & Notes nor Secret Notes shows ads.

### Which is updated more often, Authenticator & Notes or Secret Notes?

Authenticator & Notes ships an update every 3 weeks, and Secret Notes every 2 weeks. Most recently, Authenticator & Notes was updated on October 10, 2026 and Secret Notes on October 31, 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.*