SecondBrain Pro - App Store Marketing Information

secondbrain-marketing.md

SecondBrain Pro

Your Private AI Memory Assistant

Capture thoughts by voice, organize with emotions, sync across iPhone & Apple Watch. Privacy-first, on-device AI.

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App Information

Developer	Heinrich Krupp
Category	Productivity / Utilities
Price	Free (with In-App Purchases)
iOS Version	iOS 18.2+
Devices	iPhone, iPad, Apple Watch
Languages	English, German
Age Rating	4+
Version	2.0.6

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In-App Purchases

SecondBrain Standard — CHF 7.99 (One-Time)

• iCloud Sync across all Apple devices
• Unlimited memories
• Premium Neural TTS voices
• Expanded AI context (50 memories)
• Export to JSON/Markdown

SecondBrain 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

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Architecture Overview

System Architecture

graph TB
    subgraph Devices["Apple Devices"]
        iPhone["📱 iPhone<br/>Main App"]
        Watch["⌚ Apple Watch<br/>Quick Capture"]
        iPad["📱 iPad<br/>Full Experience"]
    end

    subgraph OnDevice["On-Device AI"]
        Speech["🎤 Speech Recognition"]
        AppleAI["🧠 Apple Intelligence<br/>AI Chat"]
        TTS["🔊 Neural TTS"]
    end

    subgraph Storage["Storage Tiers"]
        Local["💾 Local Storage<br/>(Free)"]
        iCloud["☁️ iCloud Sync<br/>(Standard)"]
        CF["⚡ Cloudflare Workers<br/>(Premium)"]
    end

    subgraph Cloudflare["Cloudflare Premium Backend"]
        Workers["Workers AI"]
        D1["D1 Database"]
        Vectorize["Vectorize<br/>Semantic Search"]
    end

    subgraph MCP["MCP Integration"]
        Claude["Claude Desktop"]
        ClaudeCode["Claude Code"]
        Cursor["Cursor / VS Code"]
    end

    iPhone <--> Watch
    iPhone <--> iPad
    iPhone --- OnDevice
    iPhone --> Local
    iPhone <--> iCloud
    iPhone <--> CF

    CF --- Cloudflare

    Workers <--> D1
    Workers <--> Vectorize

    MCP <-->|"15 Tools"| CF

    style Devices fill:#007AFF,color:#fff
    style OnDevice fill:#34C759,color:#fff
    style Storage fill:#FF9500,color:#fff
    style Cloudflare fill:#F48120,color:#fff
    style MCP fill:#8B5CF6,color:#fff

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Memory Data Flow

flowchart LR
    A["🎤 Voice Input"] --> B["📝 Speech-to-Text<br/>(on-device)"]
    B --> C["🏷️ Tag & Categorize<br/>Type · Emotion · Tags"]
    C --> D{"Storage Tier?"}

    D -->|Free| E["💾 Local<br/>SwiftData"]
    D -->|Standard| F["☁️ iCloud<br/>CloudKit Sync"]
    D -->|Premium| G["⚡ Cloudflare<br/>D1 + Vectorize"]

    G --> H["🧠 AI Features<br/>Auto-Correct · Summarize<br/>Semantic Search"]

    E --> I["🔍 Recall<br/>Natural Language Query"]
    F --> I
    G --> I
    H --> I

    I --> J["💬 AI Chat<br/>Context-Aware Response"]

    style A fill:#FF3B30,color:#fff
    style B fill:#007AFF,color:#fff
    style C fill:#34C759,color:#fff
    style D fill:#FF9500,color:#fff
    style H fill:#8B5CF6,color:#fff
    style J fill:#8B5CF6,color:#fff

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Storage Tiers Comparison

graph TB
    subgraph Free["🆓 Free — Local Only"]
        F1["✅ Voice Capture"]
        F2["✅ On-Device AI Chat<br/>(10 memory context)"]
        F3["✅ Standard TTS"]
        F4["✅ Emotion Tracking"]
        F5["❌ No Sync"]
        F6["❌ No Cloud AI"]
    end

    subgraph Standard["⭐ Standard — CHF 7.99"]
        S1["✅ Everything in Free"]
        S2["✅ iCloud Sync<br/>iPhone ↔ iPad ↔ Watch"]
        S3["✅ Premium Neural TTS"]
        S4["✅ 50 Memory AI Context"]
        S5["✅ Export JSON/Markdown"]
        S6["❌ No Cloud AI"]
    end

    subgraph Premium["💎 Premium — CHF 17.99"]
        P1["✅ Everything in Standard"]
        P2["✅ Cloudflare Workers Backend"]
        P3["✅ AI Auto-Correction"]
        P4["✅ AI Summarization"]
        P5["✅ Semantic Vector Search"]
        P6["✅ MCP Integration<br/>(15 AI Tools)"]
    end

    Free -.->|"upgrade"| Standard
    Standard -.->|"upgrade"| Premium

    style Free fill:#8E8E93,color:#fff
    style Standard fill:#007AFF,color:#fff
    style Premium fill:#AF52DE,color:#fff

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Explore SecondBrain Pro

Features & Screenshots

Voice capture, AI chat, emotion tracking, Apple Watch companion, and more — with screenshots in Light & Dark mode.

Cloudflare Workers Setup

Step-by-step guide to deploy your own Cloudflare Workers backend with D1 database, Vectorize, and Workers AI.

MCP Integration

Connect SecondBrain to Claude Desktop, Claude Code, or Cursor with 15 MCP tools for AI-powered memory management.

Landing Page

Full overview with App Store download link.

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Keywords

memory, voice, AI, chat, recall, second brain, PKM, notes, watch, iCloud, productivity, personal knowledge management, voice notes, transcription, Apple Intelligence

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Support & Contact

• Website: secondbrain-pro.netlify.app
• Support Email: henry.krupp@gmail.com
• Privacy Policy: secondbrain-pro.netlify.app/privacy.html
• GitHub: github.com/doobidoo/SecondBrain

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Last Updated: March 31, 2026