# NoteFlow AI Notes vs Demon alarm

The clearest difference is iOS requirement: Demon alarm at 15.0 against NoteFlow AI Notes's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. NoteFlow AI Notes sells 2 in-app purchases, starting at $18.99 per 7 days and Demon alarm sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | NoteFlow AI Notes | Demon alarm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 58 MB | 48 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 9+ |
| Developer | [金叶 王](https://appshunter.io/developer/1872571914) | [letong he](https://appshunter.io/developer/6773952217) |

## What reviewers say

### NoteFlow AI Notes

[App page](https://appshunter.io/ios/app/noteflow-ai-notes/id6758418909)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Free Trial | $18.99 | per 7 days |
| Premium Member | $39.99 | per month |


### Demon alarm

[App page](https://appshunter.io/ios/app/demon-alarm/id6773952215)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Demon alarm premium | $4.99 | one-time |


## Frequently asked questions

### Is NoteFlow AI Notes free?

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

### Is Demon alarm free?

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

### Do NoteFlow AI Notes or Demon alarm have ads?

Neither NoteFlow AI Notes nor Demon alarm shows ads.

### Which is updated more often, NoteFlow AI Notes or Demon alarm?

NoteFlow AI Notes ships an update every 3 weeks, and Demon alarm every 3 weeks. Most recently, NoteFlow AI Notes was updated on October 25, 2026 and Demon alarm on October 8, 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.*