# KairoProject vs Notal Pro

The clearest difference is update cadence: KairoProject at every 5 days against Notal Pro's every 5 months. KairoProject also leads on iOS requirement (18.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KairoProject sells 2 in-app purchases, starting at $8.99 per month and Notal Pro sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

KairoProject ships an update every 5 days, Notal Pro every 5 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | KairoProject | Notal Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 months |
| Size | 27 MB | 6 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Matthieu Guillon](https://appshunter.io/developer/1789846223) | [Samuel Molina](https://appshunter.io/developer/1847938952) |

## What reviewers say

### KairoProject

[App page](https://appshunter.io/ios/app/kairoproject/id6748902716)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $8.99 | per month |
| Premium Annual subscription | $89.99 | per year |


### Notal Pro

[App page](https://appshunter.io/ios/app/notal-pro-quick-notes/id6754342414)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $14.99 | per year |
| Notal Pro Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is KairoProject free?

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

### Is Notal Pro free?

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

### Do KairoProject or Notal Pro have ads?

Neither KairoProject nor Notal Pro shows ads.

### Which is updated more often, KairoProject or Notal Pro?

KairoProject ships an update every 5 days, and Notal Pro every 5 months. Most recently, KairoProject was updated on October 6, 2026 and Notal Pro on October 3, 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.*