Comparison

SecondBrain vs Mention AI

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Mention AI

Read full description

Mention turns the documentation your organization already has into knowledge your team actually carries: articles written from your own sources, lessons that make them stick, and answers you can trust. HOW IT WORKS Connect the tools where your knowledge already lives. Mention reads them and writes articles for each audience you define — sales, support, operations, anyone — grounded entirely in your organization's own material. Every article becomes a lesson: short exercises that ask you to decide, explain, and recall, not just recognize. What you have passed comes back for review on its own schedule, and a final exam ties each audience together. LEARN ON YOUR PHONE • Ask anything and get a grounded answer with its sources cited • Your lessons show where you stand and the next thing to do • Work through lessons built on real scenarios from your company's own practices • Review what falls due, then sit the final exam when every lesson is finished • Read articles with tap-to-define terms from your organization's own glossary • Push notifications keep you current: new content, answers to your questions, and a nudge when learning is waiting • Full dark mode FOR OWNERS AND ADMINS • Author each audience's contents: name an article, say what it must cover, and Mention writes it • Walk through composed lessons exactly as your learners will meet them • Answer the questions Mention couldn't, and review misunderstandings picked up from calls and chat • Resolve conflicts between sources so your knowledge base stays consistent • Keep a ledger of the commitments your organization has made • Connect and manage sources, curate Slack channels, and upload files from your phone WORKS WITH YOUR TOOLS Notion, Confluence, Google Drive, Dropbox, Box, GitHub, Slack, Intercom, and Microsoft Teams — plus direct file uploads. Content syncs daily. Mention is used by an organization; sign in with the account your administrator set up for you. Progress is shared across mobile and web, so a lesson finished on your phone is finished everywhere.

Screenshots

SecondBrain4 screens
Mention AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Mention AI at none against SecondBrain's 3. Mention AI also leads on ads (none vs shown). SecondBrain's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price 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. SecondBrain sells 3 in-app purchases, starting at $8.99 per month. Mention AI asks for nothing beyond the download.

Scorecard4 real differences · 6 level
SecondBrain versus Mention AI: the parameters behind the verdict, then further details
ParameterSecondBrainMention AI
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 days—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better26.0
Further details — not scored
Size73 MB46 MB
Age rating4+4+
DeveloperFederico CesariniMention AI Inc

In-app purchases

3 purchases

SecondBrain

Subscriptions3
  • SecondBrain Pro$8.991 Month
  • SecondBrain Pro Yearly3 Days trial$34.991 Year
  • SecondBrain Pro Yearly3 Days trial$44.991 Year
None

Mention AI

No in-app purchases

Questions

Is SecondBrain free?
SecondBrain is free to download, with in-app purchases available.
Is Mention AI free?
Mention AI is free to download, with no in-app purchases.
Do SecondBrain or Mention AI have ads?
SecondBrain shows ads; Mention AI does not.

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