# Nova vs OTN

The clearest difference is ads: Nova at none against OTN's shown. Nova also leads on iOS requirement (15.1 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Nova sells 1 in-app purchase, starting at $4.99 per month and OTN sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Nova | OTN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 days |
| Size | 38 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Cai Yan Zhu](https://appshunter.io/developer/1855679013) | [SeokHui Lee](https://appshunter.io/developer/1129769874) |

## What reviewers say

### Nova

[App page](https://appshunter.io/ios/app/nova-ai-notebook/id6756199980)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nova Pro | $4.99 | per month |


### 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 Nova free?

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

### Is OTN free?

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

### Do Nova or OTN have ads?

OTN shows ads; Nova 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.*