# Noodle > Guides for Noodle — a private journal and gentle AI companion for everyday mental health. ## Docs - [Billing](https://docs.noodle.health/account/billing.md): Manage subscription, invoices, and plan changes. - [Delete your account](https://docs.noodle.health/account/delete.md): Close your Noodle account and remove your data. - [Export your data](https://docs.noodle.health/account/export.md): Download your journal as Markdown. - [Plans](https://docs.noodle.health/account/plans.md): Free, Noodle+, and Lifetime — what each includes. - [Privacy & data](https://docs.noodle.health/account/privacy.md): How Noodle thinks about your inner world. - [Sign up & sign in](https://docs.noodle.health/account/sign-up.md): Create an account and get back into Noodle. - [Key concepts](https://docs.noodle.health/getting-started/concepts.md): The words Noodle uses — Noo, journals, check-ins, prompts, and more. - [Quickstart](https://docs.noodle.health/getting-started/quickstart.md): Create your account and take your first steps in Noodle. - [What Noodle is and isn't](https://docs.noodle.health/getting-started/what-noodle-isnt.md): Noodle is a companion, not therapy — and how we think about safety. - [Contact support](https://docs.noodle.health/help/contact.md): Reach the Noodle team. - [Crisis & getting real help](https://docs.noodle.health/help/crisis.md): If you are in danger or need urgent support, use real-world help. - [FAQ](https://docs.noodle.health/help/faq.md): Short answers to common questions. - [Welcome to Noodle](https://docs.noodle.health/index.md): A private journal and gentle AI companion for everyday mental health. - [Check-ins & tags](https://docs.noodle.health/personalize/check-ins-and-tags.md): Choose metrics and labels that fit how you track. - [Notifications & reminders](https://docs.noodle.health/personalize/notifications.md): Set a gentle rhythm — without streak pressure. - [Personality & approach](https://docs.noodle.health/personalize/personality-and-approach.md): Choose how Noo sounds and which therapeutic style shapes replies. - [Theme & preferences](https://docs.noodle.health/personalize/preferences.md): Light, dark, and everyday app preferences. - [Calendar](https://docs.noodle.health/using/calendar.md): See your activity over time. - [Chat with Noo](https://docs.noodle.health/using/chat.md): Talk with your AI companion anytime. - [Home & check-ins](https://docs.noodle.health/using/home-and-check-ins.md): Start from Home and log how you feel. - [Insights](https://docs.noodle.health/using/insights.md): Gentle patterns over time — no scores or streaks. - [Journaling & entries](https://docs.noodle.health/using/journal.md): Write freely in a calm journal — no streaks or scores. - [Journals](https://docs.noodle.health/using/journals.md): Organize entries into named journals. - [Prompts](https://docs.noodle.health/using/prompts.md): Writing starters from Noodle and the community. - [Reflections](https://docs.noodle.health/using/reflections.md): Gentle AI notes on lines in your journal entries. - [Voice calls](https://docs.noodle.health/using/voice.md): Talk out loud with Noo on Noodle+. ## Optional - [Website](https://noodle.health) - [Open app](https://app.noodle.health) - [Support](https://noodle.health/support)