Comparison

Leaf Note vs 1dea

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Leaf Note

A secure, elegant note-taking app supporting Markdown, end-to-end encryption, and multi-device sync via WebDAV or iCloud. It offers features like flashcards, knowledge base organization, and AI-assisted writing for enhanced productivity.

Highlights
  • End-to-end encryption
  • WebDAV and iCloud sync
  • Markdown and multimedia notes
  • Knowledge base and flashcard modes
  • AI-assisted writing
  • Elegant design and themes
  • Biometric app lock
Read full description

Welcome to "Leaf Note" — A dual-platform app focused on Markdown note-taking and knowledge management, supporting WebDAV / iCloud sync, end-to-end encryption, and fully offline functionality. 1. Elegant Design & Personalized Themes Upon opening "Leaf Note" for the first time, you'll be immediately drawn to its minimalist and elegant interface—from smooth interactive animations to delicate card-based layouts, every detail is meticulously polished. We offer multiple themes, whether it's the eye-protecting mode for late-night creation or the bright theme for daytime work, all designed to create an immersive note-taking experience. 2. Bank-Level Security: Dual Encryption for Notes & App Security is at the core of our design philosophy: - Note Encryption: Uses AES 256-bit encryption algorithm with user-defined passwords to protect your private content from prying eyes; - App Lock: Lock the app with biometric verification to prevent unauthorized access. Even if your phone is lost, your knowledge assets are fully protected. 3. Multi-Device Sync: Access Your Note Universe Anytime, Anywhere Break free from device limitations with support for two major cloud services: - iCloud: Automatic syncing, perfect for users accustomed to iCloud storage; - WebDAV: Supports private clouds (e.g., Synology, Nextcloud) to meet advanced user needs. All sync processes use TLS encrypted transmission to ensure secure flow of notes between the cloud and local devices. 4. All-Type Notes: Boundless Recording Methods Whether for text creation or multimedia inspiration capture, "Leaf Note" has you covered: - Markdown Notes: Supports basic syntax like headers, tables, and code blocks, with built-in MathJax formula editing (ideal for science students writing papers) and Mermaid flowcharts/mind maps (efficiently organize logic); - Multimedia Notes: Directly insert images, audio recordings, and hand-drawn sketches; - Web-to-Markdown: One-tap parsing of copied web links, making it easier to save online articles. 5. From Personal Knowledge Base to Flashcard Notes: Flexibly Adapt to Learning Scenarios - Knowledge Base Mode: Build your exclusive knowledge tree with infinite hierarchical directories + tag systems; - Flashcard Note Mode: Single notes support "quick recording," allowing fragmented ideas to spark creative insights. Whether organizing postgraduate exam materials, writing reading notes, or recording entrepreneurial ideas, find the perfect recording method for every need. 6. Powerful Search: Locate Any Note Content in 3 Seconds Enter keywords to quickly and accurately locate notes among vast collections, significantly improving search efficiency. 7. AI-Assisted Writing: Elevate Creative Efficiency Built-in intelligent writing assistant helps break through creative blocks, polishing sentences, distilling key points, and expanding content—say goodbye to writer's block. -------------------- Start Your Creative Journey Now Tap the "New Note" button to begin your first record! For any questions, tap "Help Center" to access detailed tutorials or contact customer service. Build your knowledge palace with "Leaf Note"—let every record be a stepping stone to growth.

About

1dea

Features
Read full description

Ideas never make an appointment. 1dea catches them in a second, files them without effort, and hands them back just when you had forgotten them. Made for people who write, teach, research or simply think: aphorisms, quotes, talk outlines, hypotheses, reading notes, projects. CAPTURE • From the app, from the Share button of any other app, or with Siri and Shortcuts ("Add an idea"). • Markdown formatting: headings, bold, italic, highlight, lists, quotes, code, links. • LaTeX equations, on their own line or in the middle of a sentence. • The place where the idea came to you, added automatically if you wish. FIND • Search by words, or by meaning: 1dea finds related ideas even when they share no word. • Coloured categories, tags and one-to-three-star ratings to filter in one tap. • Related ideas and links between notes to weave your thinking together. • A world map of your notes. REREAD • Home Screen widget: a random idea, from the categories you choose, refreshed anywhere from every 15 minutes to once a day. • "Random idea" in Siri and Shortcuts as well. • Project note: gather several ideas into one working draft. MEASURE • Statistics by month, year, category and rating. • Vocabulary tools: how many words you have written, how many are still ahead of you (Chao2 estimator), and how varied your vocabulary is (Shannon entropy). SHARE • Copy or share an idea as a quote, with your signature. • JSON export and import of your whole library. YOUR NOTES STAY YOURS • No account to create: sync goes through your own iCloud, across iPhone, iPad and Apple silicon Mac. • Search by meaning and statistics are computed on the device. • Lock with Face ID, Touch ID or passcode. Free, no ads, no in-app purchases. In English and French.

Screenshots

Leaf Note4 screens
1dea4 screens

Verdict

The call

The clearest difference is in-app purchases: 1dea at none against Leaf Note's 2. 1dea also leads on update cadence (every 6 days vs every 3 weeks). Leaf Note's advantage is iOS requirement (15.0 vs 18.6). On price, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Leaf Note sells 2 one-off in-app purchases. 1dea asks for nothing beyond the download.

UpkeepUpdate frequency

Leaf Note ships an update every 3 weeks, 1dea every 6 days. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 6 level
Leaf Note versus 1dea: the parameters behind the verdict, then further details
ParameterLeaf Note1dea
PriceFreeFree
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.6
Further details — not scored
Size43 MB7 MB
Age rating4+4+
Developer守恒 王1O1IN

In-app purchases

2 purchases

Leaf Note

One-time2
  • One Year Pro$3.99
  • Lifetime Pro$24.99
None

1dea

No in-app purchases

Questions

Is Leaf Note free?
Leaf Note is free to download, with in-app purchases available.
Is 1dea free?
1dea is free to download, with no in-app purchases.
Do Leaf Note or 1dea have ads?
Neither Leaf Note nor 1dea shows ads.
Which is updated more often, Leaf Note or 1dea?
Leaf Note ships an update every 3 weeks, and 1dea every 6 days. Most recently, Leaf Note was updated on October 13, 2026 and 1dea on October 8, 2026.

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