notaduo vs ThreeNote
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
notaduo
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Notaduo is an app where you can create and work on a note on different devices.Ā These notes can be retrieved using unique Note IDs.Ā You can retrieve your notes using the Notaduo app on different devices. In order to use Notaduo you do not need to login or register, simply share and retrieve a note on a different device. Notaduo comes in handy when working with to-do lists for group projects or when having a shared grocery list for example.
ThreeNote
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Your Personal Knowledge Forest Tired of scattered notes and disorganized thoughts? TreeNote is here to help you cultivate a thriving ecosystem of ideas. With its intuitive tree-like structure, TreeNote allows you to: Create Hierarchies: Organize your notes in a logical, branching structure. Link Related Concepts: Connect ideas across different branches with ease. Quick Navigation: Zoom in and out of your knowledge tree effortlessly. Mobile-Friendly: Access your ideas anytime, anywhere on your iOS device. Secure: Keep your thoughts safe with local storage. Easy Sharing: Export your data for backup or sharing. Key Features: ⢠Unlimited nested levels for complex hierarchies ⢠Rich text editing for detailed notes ⢠Quick add for rapid idea capture ⢠Search functionality to find information fast ⢠Customizable themes to suit your style Data Export and Backup: ⢠Export your entire database as a SQLite file for comprehensive backups ⢠Generate a human-readable text file of your notes' structure and content ⢠Email both SQLite and text files directly from the app for easy sharing and safekeeping Whether you're a student organizing study materials, a professional managing projects, or a creative mind mapping out stories, TreeNote adapts to your needs. Start planting your ideas today and watch your knowledge grow!
Screenshots
Verdict
The clearest difference is update cadence: ThreeNote at daily against notaduo's fortnightly. notaduo's advantage is iOS requirement (12.4 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
notaduo ships an update fortnightly, ThreeNote daily. The most recent releases landed on September 20, 2026 and September 14, 2026 respectively.
| Parameter | notaduo | ThreeNote |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Daily ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPad |
| Requires iOS | 12.4 ā better | 16.6 |
| Further details ā not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonathan Fritz | Jouni Erola |
In-app purchases
notaduo
No in-app purchases
ThreeNote
No in-app purchases









