# KnowItOwl! vs NoteOS

KnowItOwl! and NoteOS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. KnowItOwl! sells 3 one-off in-app purchases and NoteOS sells 11 in-app purchases, starting at $39.99 per year. Whichever you choose, the download price is not the number that matters.

KnowItOwl! ships an update every 5 weeks, NoteOS every 2 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | KnowItOwl! | NoteOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (27 ratings)](https://appshunter.io/ios/app/noteos-voice-notes-and-tasks/id6761012123/reviews)** |
| Number of ratings | — | **27** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 23 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Jaime Reyes](https://appshunter.io/developer/1876999823) | [Abdullah YILMAZ](https://appshunter.io/developer/1636324967) |

## What reviewers say

### KnowItOwl!

[App page](https://appshunter.io/ios/app/knowitowl/id6759131642)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard (30 Credits) | $6.99 | one-time |
| Popular (60 Credits) | $12.99 | one-time |
| Power (120 Credits) | $24.99 | one-time |


### NoteOS

[App page](https://appshunter.io/ios/app/noteos-voice-notes-and-tasks/id6761012123)

Capture thoughts, organize your day, and build routines with an AI-powered productivity app. It unifies note-taking, voice capture, to-dos, and habit tracking into a single, fast workflow, reducing friction between ideas and actions.

**Highlights:** Text and voice note-taking, AI note processing and summarization, Task and priority tracking, Habit building and tracking, Unified workspace for ideas and plans, Fast capture for on-the-go thoughts

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NoteOS Plus Yearly | $39.99 | per year |
| NoteOS Business Monthly | $49.99 | per month |
| NoteOS Premium Yearly | $99.99 | per year |
| NoteOS Business Yearly | $399.99 | per year |
| NoteOS 1 Hour AI Credits | $0.99 | one-time |
| NoteOS 500MB AI Credits | $0.99 | one-time |
| NoteOS 2GB AI Credits | $2.99 | one-time |
| NoteOS 5 Hour AI Credits | $3.99 | one-time |
| NoteOS 10GB AI Credits | $9.99 | one-time |
| NoteOS 20 Hour AI Credits | $12.99 | one-time |
| NoteOS Plus Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is KnowItOwl! free?

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

### Is NoteOS free?

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

### Do KnowItOwl! or NoteOS have ads?

Neither KnowItOwl! nor NoteOS shows ads.

### Which is updated more often, KnowItOwl! or NoteOS?

KnowItOwl! ships an update every 5 weeks, and NoteOS every 2 months. Most recently, KnowItOwl! was updated on October 13, 2026 and NoteOS on October 7, 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.*