# Daychat — Full Reference

> Daychat is an AI-powered calendar assistant for iPhone that lets you manage your Google Calendar through natural conversation. Create, edit, delete, and query events by chatting; get smart notifications tailored to event type; dictate events by voice; receive daily summaries, weekend activity suggestions, weather alerts, and birthday reminders.

This is the full reference document for LLMs and AI agents. A shorter overview is at /llms.txt.

--------------------------------------------------------------------------------

## 1. What Daychat is

Daychat is an iPhone app (iOS 17+, also on iPad and Mac) that connects to Google Calendar. Instead of tapping through calendar UIs, the user chats with an AI to manage their schedule. The assistant creates, modifies, queries, and deletes events, sends context-aware notifications (flights get evening-before alerts, meetings get 30-minute alerts), and surfaces relevant daily information — weather, weekend activities, birthdays, and morning briefings.

## 2. Website structure

- `/` — homepage (HTML, also served as Markdown via `Accept: text/markdown` or `/index.md`)
- `/faq` — frequently asked questions
- `/privacy` — privacy policy
- `/terms` — terms of service
- `/blog` — blog index
- `/blog/*` — individual posts (AI calendar guides, comparisons, calendar workflows)
- `/compare/*` — competitor comparison pages (Fantastical, Google Calendar, Motion, Reclaim.ai, Cal.ai)
- `/alternatives` — "Daychat alternatives" page
- `/sitemap.xml` — sitemap
- `/robots.txt` — crawler rules (permissive for AI bots)
- `/llms.txt` — short agent-readable overview
- `/llms-full.txt` — this document
- `/.well-known/agent-card.json` — A2A Agent Card
- `/.well-known/agent-skills/index.json` — skills index
- `/.well-known/api-catalog` — RFC 9727 linkset

## 3. Features

- **AI Calendar Chat**: Create, edit, delete, and query calendar events through natural-language conversation.
- **Smart Notifications**: Context-aware reminders. Flights get evening-before alerts. Meetings get 30-minute alerts. Commutes account for traffic.
- **Voice Scheduling**: Dictate events using voice messages — transcribed and parsed by AI.
- **Weather Alerts**: Rain, extreme temperature, wind, pollen, and air quality notifications timed to the user's day.
- **Weekend Activity Suggestions**: AI-powered local event and activity recommendations every Saturday morning, based on location and past interests.
- **Birthday Reminders**: Personalized birthday alerts pulled from the user's contacts.
- **Daily Summaries**: AI-generated morning briefing of the day's schedule plus relevant context.
- **Multi-language**: 10+ languages including English, French, Spanish, German, Chinese, Korean, Portuguese, Thai, Vietnamese, and Malay.

## 4. Platform

- iPhone (iOS 17+), iPad, and Mac (via Designed-for-iPad app).
- Requires a Google account with Google Calendar enabled.
- Distribution: App Store.

## 5. Pricing

- **Free** — 30 AI messages/month, core calendar features, basic notifications.
- **Daychat Plus** — $11.99/month or $59.99/year. 300 messages/month, voice recording, avatar customization.
- **Daychat Life** — $19.99/month or $99.99/year. 1000 messages/month, weather forecasts, air quality alerts, pollen alerts.

Subscriptions managed through Apple App Store in-app purchases.

## 6. Privacy

Daychat uses the Google Calendar API. All processing follows Google's Limited Use requirements. Calendar data is used solely to power assistant features (scheduling, notifications, summaries). No user data is used to train AI models.

See: https://www.daychat.ai/privacy

## 7. Terms

See: https://www.daychat.ai/terms

## 8. Contact

- Email: js.wallez@gmail.com
- App Store: https://apps.apple.com/app/id6744299293
- Website: https://www.daychat.ai

## 9. Machine-readable discovery

- robots.txt: https://www.daychat.ai/robots.txt
- Sitemap: https://www.daychat.ai/sitemap.xml
- LLMs.txt (short): https://www.daychat.ai/llms.txt
- LLMs.txt (full): https://www.daychat.ai/llms-full.txt
- A2A Agent Card: https://www.daychat.ai/.well-known/agent-card.json
- Agent Skills Index: https://www.daychat.ai/.well-known/agent-skills/index.json
- API Catalog: https://www.daychat.ai/.well-known/api-catalog
- Markdown alternate: https://www.daychat.ai/index.md (or `/` with Accept: text/markdown)

No MCP server is published — Daychat's capabilities run inside the iOS app, not as a standalone MCP. Integrations with AI assistants happen through Apple Intelligence and user-initiated share/shortcut flows on iOS.