4.2
39.7K reviews
10M+
Downloads
Content rating
Everyone
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About this app

Tired of disorganized paper notes, inefficient PDF reading, and missing key points in classes? Kilonotes is an all-in-one digital note-taking solution for students and professionals. Besides natural handwritten input, PDF annotation, image and video insertion, it features a powerful built-in AI Assistant to help you record, learn and review more efficiently. Whether it’s taking class notes, learning online courses, extracting reading key points or organizing knowledge, Kilonotes is your perfect paperless companion to boost study and work efficiency.

šŸ“ Natural Handwriting, Beyond Paper Limits
• Natural handwriting experience with smooth and clear strokes
• Multiple brush effects: ballpoint pen, fountain pen, paintbrush and more
• Freely move, zoom and rotate handwritten content for flexible editing
• Undo/redo and adjustable eraser size for effortless writing
• Unlimited virtual paper, no limits to your notes
• Insert images and record audio, never miss key points while listening
• Flashcard feature to build your personalized knowledge base quickly
• OCR text extraction, convert images to editable text efficiently
• Global quick browse, locate needed content with one click

🧠 AI Assistant, Boost Your Efficiency
• AI Q&A & Chat: Chat with AI anytime to ask about note key points, generate mind maps, outline essays and get intelligent content interpretation
• AI Problem Solving: Snap or type in questions, AI provides instant explanations and solutions, conquer math, physics and chemistry problems, say goodbye to blind practice

šŸ“– Professional PDF Reading & Annotation
• Global PDF search, find literature content quickly
• Outline navigation and page jump for efficient reading
• Multiple reading modes: Eye Protection, Dark Mode, Vision Care
• Foreign literature translation and key point extraction, study without barriers
• Flexible PDF annotation extension, seamless reading and writing

šŸŽØ Professional Brushes, Create Freely
• Custom brush colors and color picker tool
• Adjustable brush width for writing, marking and drawing scenarios
• Rich brush strokes with doodle pen, make your notes vivid and beautiful

šŸ“’ Customizable Notebooks
• Abundant notebook covers and paper templates: blank, dot grid, square grid, Cornell and more
• Built-in exquisite sticker resources for aesthetic notes and digital bullet journals
• Import PDFs directly and take notes freely in your personalized notebooks
• Build a consistent and personalized learning knowledge base

For suggestions or questions, feel free to contact us:
business@top-stack.com

About Subscription
Pricing may vary by region. Subscription fees will be deducted from your Google Play account-bound credit card. Paid accounts will auto-renew upon expiration. You may cancel auto-renewal at least 24 hours before the end of the current billing period. Subscriptions cannot be cancelled or refunded unless stated otherwise in the Kilonotes Terms of Service. Manage your subscription in your Account Settings after purchase.

Privacy Policy: https://www.top-stack.com/page/Kilonotes_Privacy_Policy_En.html
Terms of Service: https://www.top-stack.com/page/Kilonotes_Terms_of_use_En.html
Updated on
Mar 31, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.2
20.3K reviews
Molten Lefty
May 7, 2025
Ok I'll admit it's a good notes app, but it doesn't have syncing, & your lifetime membership doesn't move over to other devices. CS tried too help, but nothing came of it. They just gave me a refund & told me to get the lifetime membership again, but they've upped the price, & I'm not going to my an extra $5 when it's not guaranteed that I'll get the lifetime on my other devices. It's a great app if you want to use it for a single device, but sucks if you want to use it for multiple devices.
75 people found this review helpful
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Kacie
March 21, 2024
This app is amazing it has tons of stickers and templates for only a small price. The only thing I don't like is that there's not a sync across devices option.If I make a notebook on my phone, it won't be on my tablet. There is an import and export feature, but it gets annoying to have to constantly do between devices. I would love to see that added. Also some stickers are still in the year 2023 and I would like to see those changed to the current year so I can use them.
161 people found this review helpful
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Amber
September 9, 2022
It's a great app and I do like it but I don't recommend it for Samsung tablets or phones since I've noticed that a lot of stuff are limited on Android than on iPad. You can't really change the style of the pen unlike iPad where it has different ones like a gel pen, fountain pen, marker, a doodle pen with cute stamps and they give you a lot more free, cute and colorful book covers There's more but I can't list it all here!! I wish that they made it the same instead of limiting it for Android. :(
322 people found this review helpful
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What’s new

Bug fixed.

App support

Phone number
+8615556955227
About the developer
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business@top-stack.com
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+86 155 5695 5227

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