# Plato vs OTN

The clearest difference is in-app purchases: Plato at none against OTN's 1. Plato also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. OTN sells 1 one-off in-app purchase. Plato asks for nothing beyond the download.

## The numbers

| Metric | Plato | OTN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 days |
| Size | 1 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Wonmo Seong](https://appshunter.io/developer/1625011193) | [SeokHui Lee](https://appshunter.io/developer/1129769874) |

## What reviewers say

### Plato

[App page](https://appshunter.io/ios/app/plato-disappearing-notes/id6761697919)

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

**In-app purchases:** none


### OTN

[App page](https://appshunter.io/ios/app/otn-one-time-note/id6793473020)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OTN Pro | $0.99 | one-time |


## Frequently asked questions

### Is Plato free?

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

### Is OTN free?

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

### Do Plato or OTN have ads?

OTN shows ads; Plato does not.

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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.*