SecondBrain vs Sage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SecondBrain
This app automatically transcribes, titles, and files your spoken thoughts, creating a self-organizing note system. It can convert voice notes into calendar events, provide daily summaries, and allow you to chat with your saved information.
- Automatic transcription and titling
- AI-powered self-organizing notes
- Voice to calendar event creation
- Daily morning briefing summaries
- Chat with your notes for answers
- 3D brain graph visualization
- Full-text search
- Cross-app sharing
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Most of what you hear, think and plan today is gone by tomorrow. Speak your mind. SecondBrain writes it down, gives it a title, and files it for you. No folders to manage. No typing. Just talk, and your thoughts organize themselves. The AI note app for people who think out loud. WHY SECONDBRAIN • Capture in seconds: speak, type, or share a thought and it is saved instantly • Zero organizing: AI transcribes, titles, and files every note into a self-building folder tree • Voice to schedule: say "dentist Tuesday 4pm" and it creates real events in Calendar and Reminders • Morning briefing: wake up to a daily summary of your day and what matters • Ask your brain: chat with your notes and get answers from everything you have saved • Brain graph: explore your ideas as a living 3D map of connected notes • Search everything: full-text search finds any note in an instant • Share from anywhere: send text, links, images, or audio from any app into SecondBrain • 20+ languages: speak in your language and get replies in your language BUILT FOR BUSY MINDS Founder juggling clients, student capturing lectures, or just someone with too many thoughts to hold? SecondBrain is the frictionless place to put them all. Brain-dump on the go and let the AI do the filing. WORKS WHERE YOU DO Your notes sync to the web at app.secondbrain.icu. Pro users can connect SecondBrain as memory for AI assistants through the MCP connector. SECONDBRAIN PRO Go unlimited: unlimited notes, unlimited AI capture and answers, plus the AI assistant connector. Start with a free trial, then subscribe yearly or monthly. Cancel anytime. Payment is charged to your Apple ID. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://secondbrain.icu/privacy
Sage
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Sage is a place to capture a thought and get back to what you were doing. Type it, dictate it, or share it from another app. Add photos and files to keep the context together. Your entries stay in one chronological feed. CAPTURE WITHOUT THINKING • Save text, photos, files and links in one entry • Share content to Sage from other apps • Save notes offline; AI processing resumes when you reconnect • Dictate in English with on-device speech recognition SEE YOUR THOUGHTS TAKE SHAPE • Sage categorizes entries after you save them • One entry can belong to more than one category • Topic threads collect the relevant entries automatically • Edit entries and correct their categories at any time • Create personal categories for your topics and projects ANALYSE WHEN YOU'RE READY • Tap Analyse to generate an AI insight for each thread with new entries • Each analysis considers new entries and earlier AI insights, so progress builds over time • Read the latest AI insight at the top of a thread and revisit source entries below it in date order YOUR NOTES STAY YOURS • Keep your notes on your device and sync them through your iCloud • Sign in with Apple is required • Content needed for categorization and analysis is sent securely through the Sage backend SAGE PLUS A Sage Plus subscription is required to use the app. It includes capture, categorization, analysis and access to every thread. Sage Plus costs $59.99/year or $8.99/month in the U.S. Eligible new subscribers can get a 3-day free trial. Prices may vary by region. Payment is charged to your Apple ID account at confirmation of purchase or after the free trial, where applicable. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings → Apple ID → Subscriptions. Terms of Use: https://sagebrain.tech/terms/ Privacy Policy: https://sagebrain.tech/privacy/ Refund Policy: https://sagebrain.tech/refund/ Built for people whose attention is already full.
Screenshots
Verdict
The clearest difference is ads: Sage at none against SecondBrain's shown. SecondBrain's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price and in-app purchases 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. SecondBrain sells 3 in-app purchases, starting at $8.99 per month and Sage sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | SecondBrain | Sage |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 3 days | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 73 MB | 21 MB |
| Age rating | 4+ | 17+ |
| Developer | Federico Cesarini | Maksim Ermolaev |
In-app purchases
SecondBrain
- SecondBrain Pro$8.991 Month
- SecondBrain Pro Yearly3 Days trial$34.991 Year
- SecondBrain Pro Yearly3 Days trial$44.991 Year
Sage
- Sage Plus Monthly3 Days trial$8.991 Month
- Sage Plus Yearly3 Days trial$59.991 Year









