Comparison

QuickNotion vs 2sBrain

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

Head to head
About

QuickNotion

Features
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QuickNotion: Rapid Capture for Notion Your quick-capture companion for Notion that lets you instantly save ideas, notes, and thoughts to your Notion databases. Key Features - Lightning Fast: Instantly capture notes to Notion without waiting for the main app to load - Focus on Capture: Streamlined interface optimized for quick text entry - Rich Text Support: Write in Markdown with support for: - Headings (#, ##, ###) - Bullet lists (-) - Numbered lists (1. 2. 3.) - Multiple Databases: Connect and switch between different Notion databases - Custom Properties: Add custom text properties that match your database structure Why QuickNotion? Notion is powerful but can be slow to load when you just want to quickly capture an idea. QuickNotion solves this by providing: - Instant Access: Launch and start typing in under a second - Offline First: Capture now, sync later - Focus Mode: Distraction-free interface for pure note taking - Quick Organization: Easily assign properties and select target databases - Reliable Sync: Posts reliably sync to your Notion workspace Download QuickNotion now and supercharge your note-taking workflow! Licensed application end user license aggrement(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

2sBrain

Features
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2sBrain — Your second brain, powered by AI. You read a lot but remember little? Documents, books, and notes scattered everywhere, slowly forgotten? 2sBrain turns them all into a personal knowledge base: AI reads for you, summarizes, connects knowledge across documents, and answers any question — based on exactly what you've added. ADD DOCUMENTS FROM ANY SOURCE • Scan books and paper documents with your camera — capture multiple pages in a row, AI analyzes instantly • Upload PDFs and many other file formats • Write notes in a rich text editor, insert images, one tap for AI analysis CHAT WITH YOUR OWN KNOWLEDGE BASE • Talk to the AI Assistant about your documents: summarize, explain, compare • Every answer comes with document sources and related concepts • Save valuable insights so your knowledge keeps growing and evolving over time KNOWLEDGE WIKI — CONNECTED KNOWLEDGE • AI extracts core concepts from each document • Concepts are cross-linked between documents into your personal knowledge graph • The more you add, the smarter your second brain becomes ANNOTATE & SIGN PDFS DIRECTLY • Highlight key passages and draw freely with a full pen kit: pencil, ink pen, marker, eraser, ruler, and custom colors • Add your signature to documents — sign contracts and forms right on your phone, no printing needed • Insert text notes anywhere on the page • Undo, erase, and edit freely; every change is saved right into the document • Feels like writing on real paper — but never gets lost LEARN LANGUAGES FROM WHAT YOU READ • Tap any word while reading for an instant definition, without leaving the page • Smart dictionary auto-detects the language: English, Chinese, Japanese, Korean, German, Vietnamese • Save words to vocabulary notebooks by topic • Review with flashcards — flip and swipe through your words SYNC ACROSS ALL YOUR DEVICES • Use it instantly without an account; your data stays safe on your device • Sign in to sync documents, notebooks, and chat history across devices 2sBrain is for students preparing for exams, engineers reading technical docs, language learners, and anyone who wants what they read to actually stick. Download 2sBrain for free — and start building your second brain today.

Screenshots

QuickNotion4 screens
2sBrain4 screens

Verdict

The call

The clearest difference is in-app purchases: 2sBrain at none against QuickNotion's 1. 2sBrain also leads on ads (none vs shown). QuickNotion's advantage is update cadence (daily vs weekly). On price, device support and iOS requirement 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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. QuickNotion sells 1 in-app purchase, starting at $0.99 per month. 2sBrain asks for nothing beyond the download.

UpkeepUpdate frequency

QuickNotion ships an update daily, 2sBrain weekly. The most recent releases landed on September 10, 2026 and September 24, 2026 respectively.

Scorecard3 real differences Ā· 3 level
QuickNotion versus 2sBrain: the parameters behind the verdict, then further details
ParameterQuickNotion2sBrain
PriceFreeFree
Update frequencyDaily — betterWeekly
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.1 — better15.5
Further details — not scored
Size23 MB66 MB
Age rating4+4+
Developersanghwa parkNguyen Nhu Vuong

In-app purchases

1 purchases

QuickNotion

Subscriptions1
  • 1 Month Pro$0.991 Month
None

2sBrain

No in-app purchases

Questions

Is QuickNotion free?
QuickNotion is free to download, with in-app purchases available.
Is 2sBrain free?
2sBrain is free to download, with no in-app purchases.
Do QuickNotion or 2sBrain have ads?
QuickNotion shows ads; 2sBrain does not.
Which is updated more often, QuickNotion or 2sBrain?
QuickNotion ships an update daily, and 2sBrain weekly. Most recently, QuickNotion was updated on September 10, 2026 and 2sBrain on September 24, 2026.

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