Memex is a free, open-source journal app for Android and iOS that turns text, photos, and voice into organized timeline cards and insights. It is designed for people who capture everyday details in fragments, including observations, tasks, and voice memos. On-device OCR, image labeling, and photo EXIF extraction help process material. AI agents sort records into categories such as tasks, events, metrics, people, places, and transactions, then surface patterns through charts, timelines, quotes, and summaries. Records are stored as Markdown files and in a local SQLite database, with export, backup, and restore options. Users can back up to iCloud Drive, a custom folder, or app storage. Memex supports user-configured model providers such as OpenAI, Claude, Gemini, Ollama, and others. AI features require a configured model service, which may incur provider charges. If a third-party model is connected, text, photo metadata, OCR text, and card content may be sent to that provider for processing. The project is published under GPL-3.0.
Who it is for
Memex suits people who collect everyday notes, images, and voice memos and want them organized into a timeline. It also fits users who want local records, export and backup options, and a choice of AI provider.
What is good
- Captures text, photos, and voice
- Stores records locally as Markdown and SQLite
- Includes export, backup, and restore options
- Open-source under GPL-3.0
What to know first
- AI features require a configured model service
- Model providers may charge separately
- Some record content may be sent to a selected provider
Verdict
Memex combines a local-first journal with AI organization and pattern summaries. The app is free, but AI features require a configured provider and may involve sending record content to that provider.
Memex plans and pricing
All plansCompared on AI voice note apps
- Free plan
- Yes
- AI summaries
- Yes





