SecondBrain Pro vs Second Brain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SecondBrain Pro
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Your Personal AI-Augmented Memory SecondBrain helps you capture, organize, and recall your thoughts, ideas, and learnings using voice-first capture and AI-powered search. INSTANT VOICE CAPTURE • Tap to record, automatic transcription • Works on iPhone, Apple Watch, iPad • Background recording for long thoughts • Premium Neural TTS for voice playback AI-POWERED RECALL • Natural language search: "What did I learn about React last week?" • On-device AI chat with your memory context • Temporal queries: "yesterday", "last month", "last summer" • Smart tagging and categorization CHOOSE YOUR STORAGE FREE - Local Only • Store memories on your device • Voice capture with standard TTS • On-device AI chat (10 memory context) • Perfect for getting started STANDARD - CHF 7.99 (One-Time) • Everything in Free + • iCloud Sync across all your Apple devices • Premium Neural TTS voices • Expanded AI context (50 memories) • Export to JSON/Markdown • iPhone ↔ iPad ↔ Watch ↔ Mac sync PREMIUM - CHF 17.99 (One-Time) • Everything in Standard + • Custom CloudFlare Worker backend • AI Auto-Correction of voice input • AI Summarization of search results • Quality Boosting for better relevance • GDPR compliant, EU servers PRIVACY-FIRST • No account required (Free & Standard tiers) • On-device AI processing (iOS 26+ Apple Intelligence) • Optional bring-your-own-backend (Premium) • End-to-end encrypted sync (iCloud) • You own your data, always KEY FEATURES • Voice recognition in multiple languages • Real-time transcription overlay • Memory types: Note, Task, Learning, Decision, Discovery • Tag-based organization • Temporal search ("today", "last week", "last year") • Export your data anytime • Dark mode support • Apple Watch companion app PRICING • FREE: 100 local memories • STANDARD: CHF 7.99 (iCloud Sync, unlimited) • PREMIUM: CHF 17.99 (CloudFlare AI, unlimited)
Second Brain
This AI-powered journal captures your thoughts via voice or text, automatically organizing and connecting them. It helps you recall memories, discover patterns, and reflect on your growth.
- AI classification, tagging, and summarization
- Semantic search by meaning
- Three-layer memory system
- People cards for relationship tracking
- Weekly AI reflections
- Voice input with transcription
- Data export (JSON + Markdown)
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The AI-powered journal that remembers everything. Capture thoughts by voice or text — AI organizes, connects, and recalls your memories so nothing is ever lost. Second Brain models how your mind actually works. Every memory is classified into three layers — instant thoughts, short-term plans, and long-term knowledge — then linked, reflected on, and surfaced exactly when you need it. CAPTURE IN SECONDS Type a thought or press and hold to speak. AI automatically classifies each memory, extracts tags, and generates a summary. No folders. No manual sorting. Just capture and move on. EXPLORE YOUR MEMORIES Ask anything: "What did I decide about the project?" or "What did Sarah say last week?" AI searches across all your memories using meaning — not just keywords — and weaves relevant ones into a clear, contextualized answer. PEOPLE MEMORY Create cards for the people in your life. Track what they said, shared experiences, meeting notes, and to-dos. Never forget a birthday, a promise, or a conversation again. WEEKLY REFLECTIONS Every week, AI reviews your memories, finds recurring themes, spots growth areas, and offers a concrete suggestion — like a thoughtful friend reading your journal. DISCOVER CONNECTIONS AI builds a knowledge graph across your memories, revealing patterns and links you never noticed. Watch your ideas form constellations over time. VOICE CAPTURE Press and hold to speak. Real-time transcription fills your memory instantly. Switch between English and Chinese with one tap. Perfect for capturing thoughts on the go. KEY FEATURES - Three-layer memory system inspired by cognitive science - AI classification, tagging, and summarization - Semantic search — find memories by meaning - Memory strength visualization with Ebbinghaus forgetting curve - People cards with relationship tracking - Daily, weekly, and monthly AI reflections - Voice input with real-time transcription - Theme clusters that reveal your thinking patterns - Memory connection graph - iCloud sync across devices - Full data export (JSON + Markdown) - Works offline — core features need no internet - Privacy-first: your data stays on your device SUBSCRIPTION Second Brain is free to use with daily limits. Upgrade to Pro for: - 20 memory explorations per day - Deep weekly and monthly reflection reports - Memory connection graph - Theme discovery clusters - Unlimited captures, people cards, and OCR - iCloud sync and data export Free 3-day trial available. Cancel anytime. PRIVACY Your memories are stored locally on your device. AI features use the Anthropic Claude API for processing — no other third party ever sees your data. Optional iCloud sync uses your personal Apple account. We never collect, store, or sell your information. Terms of Use: https://smartkiitos.com/secondbrain/terms/ Privacy Policy: https://smartkiitos.com/secondbrain/privacy/
Screenshots
Verdict
The clearest difference is update cadence: Second Brain at weekly against SecondBrain Pro's every 2 months. On price, ads, in-app purchases and device support 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 Pro sells 2 one-off in-app purchases and Second Brain sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
SecondBrain Pro ships an update every 2 months, Second Brain weekly. The most recent releases landed on September 17, 2026 and September 8, 2026 respectively.
| Parameter | SecondBrain Pro | Second Brain |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Heinrich Krupp | Liwei Xie |
In-app purchases
SecondBrain Pro
- Standard$7.99
- SecondBrain PREMIUM$17.99
Second Brain
- Second Brain Pro3 Days trial$4.991 Month
- Second Brain Pro7 Days trial$39.991 Year





