Memex

Memex is an open source, local first AI journal app for iOS and Android from Memex Lab. It turns text, photos and voice notes into structured timeline cards and surfaces patterns across entries over time. Users capture entries in a single flow, with long press to record audio, automatic EXIF extraction, on device OCR and image labeling. A multi agent AI system organizes the records into typed cards such as tasks, events, metrics, people, places, galleries, articles and transactions, with more than fifteen types in all. An insight engine builds trend charts, radar maps, timelines, highlight quotes and narrative summaries from related records. Everything is stored as interconnected Markdown files and a local database, with one click export, and backup is available through iCloud Drive, a custom folder or app storage. The app is bring your own model. It works with OpenAI, Claude, Gemini, Bedrock, Ollama, OpenRouter and several Chinese providers, and prompts go directly to the chosen provider using the user's own API key. The vendor states that records stay on the phone and that it never sees user data, keys or prompts. It is aimed at people who want a private journal or personal knowledge base with AI organization and control over their data. The app is distributed through the App Store, App Store China, Google Play and a GitHub APK. The source is published on GitHub, and the site lists no price for the app. Model usage is billed by whichever provider the user connects.