Key memos vs ThreeNote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Key memos
This app helps you store hints for your passwords and login information for various online services. It allows for organized storage in folders and offers optional PIN code protection and iCloud synchronization.
- Store password hints and login details
- Organize with folders
- Optional PIN code protection
- iCloud synchronization
- Hide cards and folders
- Export and restore data
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This app is for those who still remember their passwords, but there are so many of them that sometimes you need hints to remember. And for those who keep their passwords in Notes, then this app will definitely be the best place to store them. There are no subscriptions or in-app purchases. IT IS IMPORTANT TO REMEMBER: The information inside is NOT encrypted. Write down only the hints that you understand here! CARDS The application stores cards with password hints and other information for logging into various online services. In each card, you can write: - name, - a note, - url or website address, - login or login prompt, - password hint opportunities: + Create new folders without restrictions + Add cards to folders without restrictions + The ability to use without a PIN code + You can still add a PIN code and expand the functionality of the application. + Synchronization via iCloud - Your data will not be lost when you change your device (you can disable this in the settings) + You can hide both folders with cards and each card separately from prying eyes. + If you do not use iCloud, it is possible to output all the application data in a separate file, save it and then restore this data from the file. This file is not readable by normal means.
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 price: ThreeNote at Free against Key memos's $0.99. ThreeNote also leads on update cadence (daily vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
ThreeNote is free to download; Key memos costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Key memos ships an update every 6 months, ThreeNote daily. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Key memos | ThreeNote |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Evgeny Turchaninov | Jouni Erola |
In-app purchases
Key memos
No in-app purchases
ThreeNote
No in-app purchases









