Summarizerrrr vs 2sBrain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Summarizerrrr
Condense information from various sources like YouTube videos, online courses, articles, and selected text. Choose from multiple AI providers or use local models for enhanced privacy. Features include side-by-side viewing, interactive Q&A, and customizable prompts.
- Summarize YouTube videos with transcripts
- Condense online courses and articles
- Summarize selected text
- Choose from multiple AI providers
- Use local AI models for privacy
- Interactive Q&A and custom actions
- Export video transcripts
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KEY FEATURES Multi-Platform Support - YouTube videos with transcript - Udemy and Coursera courses - Any website or article - Selected text summarization Choose Your AI Provider - Google Gemini, OpenAI (ChatGPT), DeepSeek, Groq, Cerebras, OpenRouter - Local AI with Ollama or LM Studio - your data never leaves your device - Fully customizable prompts Powerful Interface - Side Panel: Watch videos while reading summaries side-by-side - Floating Panel: Perfect for tablet users - Mobile Sheet: One-tap summaries on Safari Interactive Tools - Deep Dive: Ask follow-up questions about the content - Custom Actions: Analyze, Explain, or Debate any content - Transcript: Copy or download video transcripts as .srt files - Export/Import: Backup and restore your settings Premium Experience - Beautiful, modern UI built with Svelte 5 - Dark/Light mode with system sync - Customizable typography (font size and family) - 8 languages: English, Vietnamese, Spanish, Chinese, German, French, Japanese, Korean PRIVACY FIRST Your API keys are stored locally on your device. Use local AI models like Ollama for complete privacy - no data ever leaves your machine. Perfect for students, researchers, professionals, and lifelong learners who want to consume content more efficiently.
2sBrain
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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
Verdict
The clearest difference is in-app purchases: Summarizerrrr at none against 2sBrain's 3. 2sBrain's advantage is update cadence (weekly vs every 3 weeks). On price, ads, 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
Both are free to download. 2sBrain sells 3 in-app purchases, starting at $3.99 per month. Summarizerrrr asks for nothing beyond the download.
Summarizerrrr ships an update every 3 weeks, 2sBrain weekly. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.
| Parameter | Summarizerrrr | 2sBrain |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 19 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Le Nguyen | Nguyen Nhu Vuong |
In-app purchases
Summarizerrrr
No in-app purchases
2sBrain
- VIP Monthly$3.991 Month
- VIP Yearly3 Days trial$19.991 Year
- VIP Lifetime$39.99









