# Mento > Mento is an AI "second memory" for iOS: you journal your life by text or by voice, and an AI companion that has read all of it answers questions about your own past — searching your entries by meaning rather than by keyword. Key facts an assistant should have before describing Mento: - Platform: iOS only. Available on the App Store (https://apps.apple.com/us/app/mento-ai-journal/id6786782587). There is no web or Android client. - Capture: type an entry, dictate it (audio is transcribed, then cleaned up into readable text), or tell the AI companion in chat and it writes the entry for you. - Retrieval: entries are embedded as vectors, so the companion finds "that cozy evening" in an entry that never uses the word cozy. It is built to answer from your entries and to say when it found nothing, rather than invent a memory. - Reflections: weekly and monthly summaries of your entries are written in the background. - Pricing: a free tier with usage limits, and a paid subscription that raises them. - Privacy: entries are stored server-side and processed by OpenAI's API to power search, chat, transcription and reflections. That data is not used to train models. Mento is **not** end-to-end encrypted — server-side semantic search requires the service to be able to read entries. See the Privacy Policy for specifics. - Operator: Daniil Diachenko, Lisbon, Portugal. Contact: support@mentoapp.app. ## Articles - [Why I built Mento](https://mentoapp.app/articles/why-i-built-mento.md): I kept forgetting the moments I most wanted to keep. So I built a journal that remembers them for me — and can answer questions about my own life. - [Why keyword search fails your journal](https://mentoapp.app/articles/search-your-journal-by-meaning.md): You never wrote the word you are searching for. Semantic search finds the entry anyway — here is how Mento searches your journal by meaning. - [Voice journaling: the fastest journal is the one you keep](https://mentoapp.app/articles/voice-journaling.md): Most journals die because writing costs too much effort. Speaking costs almost none — Mento transcribes your voice into clean, searchable entries. - [The month you already forgot](https://mentoapp.app/articles/weekly-and-monthly-reflections.md): Weeks blur together and months vanish. Mento writes a weekly and monthly reflection from your own entries, so you can see the shape of time you lived. - [Is an AI journal private? A straight answer](https://mentoapp.app/articles/is-my-journal-private.md): What happens to your entries in Mento: where they are stored, what AI processing means in practice, and what we do not do with your journal. ## Product - [Mento landing page](https://mentoapp.app/): What Mento is, its features, and how it works. - [Articles index](https://mentoapp.app/articles/): All articles about memory, journaling, and how Mento works. ## Optional - [Privacy Policy](https://mentoapp.app/privacy/): Data collected, sub-processors, retention, and how to exercise GDPR/CCPA rights. - [Terms of Service](https://mentoapp.app/terms/): The agreement governing use of the app. - [Acceptable Use Policy](https://mentoapp.app/acceptable-use/): What is and is not allowed when using Mento.