Second Brain: Voice to Action
AI Reminders, Calendar, Notes
Free · In‑App Purchases
Say it once. Second Brain creates the right project, page, Apple Reminder, or Calendar event and shows one clear receipt for every result.
Say it once. See where it went.
Second Brain is a voice-first AI organizer that turns one messy thought into real Apple Reminders, Calendar events, and Markdown updates. It separates compound thoughts into ordered results and keeps every change visible.
VOICE TO ACTION
• Speak or type naturally, even when one thought contains several intentions
• Turn things you need to do into Apple Reminders
• Put meetings, deliveries, and passive dates into Apple Calendar
• Create, append to, or update the right Markdown page
• Keep dates and times exactly as you expressed them
YOUR TOOLS, NOT ANOTHER SILO
• Tasks live in Apple Reminders
• Events live in Apple Calendar
• Context stays in ordinary Markdown files
• Use the recommended iCloud Drive folder, another Files folder, or an Obsidian vault
• Capture from Siri, Shortcuts, widgets, Control Center, the share sheet, or the Action Button
KNOWLEDGE WITH SOURCES
Ask questions about your pages and inspect the supporting sources. Search from the app, Siri, or on-device Spotlight. Each project is one editable home for its name, color, description, Markdown notes, child pages, reminders, events, and recent activity. Notes without a better home go to Misc.
SEE AND CONTROL EVERY CHANGE
Every capture keeps the original words and a receipt for each result. Project creation appears once and child pages are counted separately. Review destinations, repair older misplaced exact duplicates, confirm pending events, retry failures, or undo supported changes.
INTELLIGENCE ON YOUR TERMS
Choose Managed Intelligence through a monthly or annual auto-renewable App Store subscription, or connect your own supported Anthropic or OpenAI API key. Managed requests use Second Brain's secure service to verify subscription access, enforce usage limits, and proxy the requested operation to OpenAI. The service stores content-free job metadata, never request bodies or generated results. Long work can continue while the app is suspended, and provider deletion is requested after acknowledgement or when the 24-hour limit is reached. Personal API keys stay in Apple Keychain and send requests directly to the selected provider.
PRIVATE BY DESIGN
Before any personal data is sent to an AI service, Second Brain names the recipients and data categories and asks for permission. Choose Use Without AI to keep all AI transmission disabled while local capture, notes, reminders, events, and search remain available. Managed requests go to Second Brain's Cloudflare-hosted service and then OpenAI. Personal-key text requests go directly to OpenAI or Anthropic. Permission can be reviewed or withdrawn in Settings > Privacy & AI.
Voice transcription is always remote and permission-gated. Recordings go to OpenAI directly or through the managed Cloudflare route. Failed or cancelled uploads preserve the local recording for retry. There is no Second Brain login, advertising, or tracking. Firebase Analytics and Crashlytics receive content-free product or diagnostic data, never captures, transcripts, audio, chat, files, titles, keys, or model content. The public What Gets Sent view and content-free privacy ledger show the applicable routes and transfers.
SUBSCRIPTION TERMS
Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. Manage or cancel subscriptions in your Apple Account settings. Any trial converts to the selected paid plan unless canceled before the trial ends.
Terms of Use: https://second-brain-in-motion.heartsker.chatgpt.site/terms
Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://second-brain-in-motion.heartsker.chatgpt.site/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Second Brain 1.4 unifies projects and makes interrupted work recover cleanly:
• Create a project and its requested child pages in one correctly routed capture
• See Project created once in receipts, with created pages counted separately
• Edit a project's name, color, description, and Markdown notes in one place
• Rename a project while preserving child pages and known links
• Repair older receipts that misplaced exact duplicate pages
• Use Misc as the fallback when a note has no better project
• Keep capture, Ask, page editing, research, and voice work pending through temporary access or network failures, then resume automatically
• Preserve recordings and pending results across suspension or relaunch without creating a note from the raw request
• Review Cloudflare, OpenAI, and Anthropic routes before any personal data is sent, or choose Use Without AI
• Review or withdraw AI permission in Settings > Privacy & AI without losing local work
The developer, Aleksandr Pustotin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ALEKSANDR PUSTOTIN, IE
- Size
- 16.4 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English and Russian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Second Brain Annual $119.99
- Second Brain Monthly $12.99
- Copyright
- © Daniel Pustotin, 2026