Memory

When no one in the world remembers you, that's when you truly disappear.

A privacy-first, emotionally intelligent app for preserving life's moments and achieving digital immortality.

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What is Memory?

Memory isn't just another journal app. It's a platform for digital legacy — helping you record memories, leave messages for loved ones, and build an AI-powered digital self that truly understands you.

The AI learns from your memories, your writing style, your personality, and your voice to create a digital presence that captures who you are. Messages can be set to deliver on specific dates, at specific locations, or even after you're gone.

Core Philosophy

• Not only AI needs memory — humans do too. Preserve memories to achieve digital immortality.
• Privacy is non-negotiable. All data encrypted locally with AES-256-GCM. Zero-knowledge architecture.
• Your data, your control. Local-first by default. Cloud sync is always opt-in.

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Platforms

Platform	Directory	Status	Stack
iOS	Memory_ios/	Phase 1-18 Complete	SwiftUI, SwiftData, CloudKit
Android (China)	Memory_andriod_china/	In Development	Jetpack Compose, Room, Aliyun OSS
Android (Global)	Memory_andriod_world/	In Development	Jetpack Compose, Room, Google Drive

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Feature Overview

Record & Preserve

• Rich text, voice, photo, and video memories
• Speech-to-text transcription
• Mood tracking with 8 emotional states
• Tag-based organization with timeline view
• Auto-save drafts

People & Messages

• Contact management with relationship types
• Legacy messages with delivery conditions: immediate, specific date, or after I'm gone
• System contact import with dedup

Time Capsules

• Seal memories for the future with three unlock modes:
  • Date unlock — Opens automatically on a chosen date
  • Location unlock — Opens when you arrive at a specific place (geofencing)
  • Event unlock — Opens when you decide the moment is right
• Live countdown timers
• Local notification on unlock

AI Intelligence

• Multi-provider support: Claude, GPT, Gemini, DeepSeek, custom endpoints
• Memory summarization, emotional analysis, trend insights
• AI chat grounded in your personal memories
• Crisis keyword detection with hotline info

Soul & Digital Self

• Personality profiling — MBTI, Big Five, Values, Love Language assessments
• AI interviews — Guided conversations to map your inner world
• Voice cloning — ElevenLabs, OpenAI TTS, or custom providers
• Writing style analysis — Word frequencies, sentence patterns, AI-generated style profile
• Avatar stylization — 6 filters (natural/artistic/cartoon/anime/sketch/oil painting)
• Digital Self — AI persona that combines all of the above to chat as you

Light Orb Universe

• Immersive 3D-style interface with orbital animation
• Contact orbs orbit around your central avatar
• Tap any contact to chat with an AI role-playing as that person

Security

• Biometric lock (Face ID / Touch ID / passcode fallback)
• AES-256-GCM field-level encryption via CryptoKit
• Two encryption levels: cloudOnly and full
• Secure delete (overwrite before removal)
• Encrypted cloud backup (iCloud + Google Drive)

Monetization

• StoreKit 2 one-time Premium purchase
• Free: unlimited text/voice/photo memories, unlimited contacts
• Premium: AI features, Digital Self, encrypted export, video memories

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Getting Started

iOS (requires macOS + Xcode 16+)

git clone https://github.com/TingdeLiu/Memory.git
cd Memory/Memory_ios

1. Open Memory.xcodeproj in Xcode (or regenerate via xcodegen)
2. Set Bundle ID to com.tyndall.memory
3. Configure signing with your Apple Developer account
4. Build and run (Cmd+R)

Android (China Edition)

cd Memory/Memory_andriod_china
./gradlew assembleDebug

Android (Global Edition)

cd Memory/Memory_andriod_world
./gradlew assembleDebug

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Architecture (iOS)

Memory_ios/Memory/
├── App/                # Entry point, ContentView, App Intents
├── Models/             # 13 SwiftData @Model classes
├── Services/           # 23 service classes (@Observable singletons)
├── Views/
│   ├── Home/           # Timeline, stats, capsule card
│   ├── Memory/         # List, detail, editor, reel
│   ├── Contacts/       # Contact & message management
│   ├── AI/             # Multi-provider AI chat
│   ├── Soul/           # Personality, interviews, voice, avatar, digital self
│   ├── TimeCapsule/    # Capsule list, detail, editor, countdown
│   ├── Voice/          # Voice clone training & settings
│   ├── Settings/       # Security, premium, sync, privacy, feedback
│   └── Onboarding/     # 3-page first-launch flow
├── ViewModels/         # MVVM view models
├── Utilities/          # Encryption, biometrics, i18n
└── Resources/          # Assets, en/zh-Hans/zh-Hant localization

Tech Stack (iOS)

Category	Technology
UI	SwiftUI (iOS 17+)
Architecture	MVVM + @Observable
Data	SwiftData + CloudKit
Security	CryptoKit (AES-256-GCM) + Keychain
AI	Multi-provider REST API
Payments	StoreKit 2
Speech	Speech Framework
Maps	MapKit + CoreLocation
Notifications	UserNotifications

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Development Progress

Phase	Feature	Status
1	Project structure, SwiftData models, TabView	Done
2	Memory editor, voice recording, speech-to-text, photos	Done
3	Contacts, messages, delivery conditions	Done
4	AES-256 encryption, Keychain, biometric lock, iCloud sync	Done
5	Multi-provider AI (Claude/GPT/Gemini/DeepSeek/Custom)	Done
6	StoreKit 2 IAP, onboarding, feature gating	Done
7	Field-level encryption, key backup/recovery, migration	Done
8	Video memories (record, import, playback, thumbnails)	Done
9	Google Drive sync (OAuth 2.0 PKCE, encrypted backup)	Done
10	Xcode project setup (xcodegen, PrivacyInfo)	Done
11	Soul Profile (AI interviews, MBTI/Big Five/Values/Love Language)	Done
12	Voice Clone (ElevenLabs/OpenAI TTS/Custom, quality eval)	Done
13	Writing Style (frequency analysis, AI style profile)	Done
14	Avatar (6 stylization filters, 4 frame shapes)	Done
15	Digital Self (integrated persona, conversation interface)	Done
16	Light Orb Universe (3D orbital UI, AI roleplay chat)	Done
17	User Feedback (form, device info, local storage, i18n)	Done
18	Time Capsule (date/location/event unlock, countdown, geofencing)	Done

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TODO

App Store Launch (Priority: Critical)

• Design and export App Icon (1024x1024)
• Create App Store screenshots (6.7", 6.5", 5.5")
• Write App Store description and keywords (en/zh)
• Configure App Store Connect listing
• Set up Google Cloud Console for Google Drive OAuth
• TestFlight internal testing
• TestFlight external beta (10+ testers)
• Submit for App Store review
• Prepare Privacy Policy and Terms of Service URLs

Code Quality & Stability

• Refactor MemoryListView to MVVM (extract ViewModel)
• Refactor ContactDetailView to MVVM (extract ViewModel)
• Decouple HomeView business logic
• Add unit tests for TimeCapsuleService (date/location/event unlock)
• Add unit tests for EncryptionHelper (encrypt/decrypt round-trip)
• Add unit tests for SyncDataSerializer (serialization/deserialization)
• Add UI tests for critical flows (create memory, create capsule, onboarding)
• Audit accessibility labels across all views

Phase 19: Widgets (Next)

• Create WidgetKit extension target
• "Memory of the Day" widget (random past memory, "on this day X years ago")
• Quick capture widget (deep link to editor)
• Weekly mood chart widget (small/medium sizes)
• Lock Screen widget (iOS 16+)
• Add localization strings for widgets

Phase 20: Apple Watch App

• Create watchOS target (watchOS 10+)
• Quick voice memory recording (raise to record)
• Siri Shortcuts integration
• Complication: today's memory count + recent mood
• WatchConnectivity bidirectional sync with iPhone
• Haptic reminders to record daily thoughts

Phase 21-29: Future Roadmap

• AR Spatial Memories (ARKit, LiDAR)
• Family Sharing (groups, permission levels, family tree)
• Mac Catalyst / native macOS app
• Digital Legacy (heir designation, inactivity protocols)
• Advanced AI Analytics (annual review, life chapters, relationship health)
• On-device AI (Core ML, Apple Intelligence)
• Rich Media (PencilKit sketches, Apple Music, map trails)
• Social Sharing (curated collections, E2E encrypted links)
• Enterprise Edition (caregiver mode, HIPAA compliance)

Android Parity

• Feature parity audit: iOS vs Android China vs Android Global
• Cross-platform data format compatibility
• Time Capsule feature port to Android
• Digital Self feature port to Android

Infrastructure

• Set up CI/CD (GitHub Actions for build/test)
• Configure Fastlane for automated App Store deployment
• Set up crash reporting (Firebase Crashlytics or similar)
• Performance profiling with Instruments (memory, CPU, battery)

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Localization

Language	Status
English	Complete
Simplified Chinese (zh-Hans)	Complete
Traditional Chinese (zh-Hant)	Complete
Japanese	Planned
Korean	Planned

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License

MIT License - see LICENSE for details.

Copyright (c) 2024-2026 Tyndall Labs