Second Brain vs Solmari
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
Solmari
This AI assistant operates entirely on your device, offering private conversations, writing assistance, coding help, and brainstorming without needing an internet connection. It ensures your data never leaves your iPhone, providing a secure and offline user experience.
- 100% Private On-Device AI
- Works Offline Anywhere
- Free to Use
- Coding Assistance
- Writing and Editing Tools
- Document Chatting
- Voice Input
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Solmari is a private AI assistant that runs entirely on your iPhone. Ask questions, write and edit, brainstorm, get coding help, or just chat — all without an internet connection, and without your words ever leaving your device. No account. No sign-up. No tracking. Nothing is sent to a server, because there is no server. Your conversations stay on your phone, always. WHY SOLMARI • 100% Private — Everything happens on-device. Your chats, questions, and documents never leave your iPhone. • Works Offline — No Wi-Fi, no signal, no problem. Use Solmari on a plane, on the subway, or anywhere at all. • Free — No paywalls, no subscriptions, no locked features. • On-device intelligence — Uses your iPhone's built-in intelligence where available, with a bundled model so it works on its own. WHAT YOU CAN DO • Chat naturally — Ask anything and get thoughtful answers in seconds. • Write & edit — Draft messages, emails, and posts, then polish tone and grammar. • Code — Get clean, idiomatic code with clear explanations. • Brainstorm — Generate ideas, names, plans, and outlines fast. • Learn — A patient tutor that explains things step by step. • Chat with your documents — Import a text file and ask questions about it, fully on-device. • Voice input — Speak instead of type, transcribed privately on your phone. ONE-TAP PERSONAS Switch between Assistant, Tutor, Coder, Editor, and Brainstorm modes to instantly steer how Solmari responds. PRIVATE BY DESIGN Most AI apps send everything you type to the cloud. Solmari doesn't. The AI lives on your device, so your most personal questions, drafts, and ideas stay yours — by design, not by promise. Note: On first launch, devices without built-in AI download a one-time on-device model so Solmari can run fully offline afterward. We'll notify you when it's ready. Download Solmari and experience AI that's truly yours — private, offline, and free.
Screenshots
Verdict
The clearest difference is rating: Solmari at 5.0 against Second Brain's 4.0. Solmari also leads on in-app purchases (none vs 2). Second Brain's advantage is update cadence (weekly vs every 2 months). On price, ratings volume, ads 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. Second Brain sells 2 in-app purchases, starting at $4.99 per month. Solmari asks for nothing beyond the download.
Solmari holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Second Brain ships an update weekly, Solmari every 2 months. The most recent releases landed on September 24, 2026 and September 26, 2026 respectively.
| Parameter | Second Brain | Solmari |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 63 MB |
| Age rating | 4+ | 17+ |
| Developer | Liwei Xie | Binaya Dhakal |
Customer experience
Second Brain
Solmari
In-app purchases
Second Brain
- Second Brain Pro3 Days trial$4.991 Month
- Second Brain Pro7 Days trial$39.991 Year
Solmari
No in-app purchases









