sendwiz : schedule imessage + whatsapp with ai
Sendwiz lets you compose messages with AI and schedule them from your iPhone. Never forget a birthday text or a follow-up. Messages are sent using your number, whenever you want.
I built this because I kept forgetting to text people at the right time. The idea: write the message now (or let AI draft it), schedule it, and forget about it.
How it works
- iOS app (Swift/SwiftUI) — compose, schedule, and manage messages. Uses the native iMessage framework to send on your behalf
- Backend (FastAPI/Python) — handles auth, scheduling queue, and AI message generation via OpenAI
- Database (PostgreSQL) — stores users, scheduled messages, and conversation context
- JWT auth, rate limiting on the AI endpoint, and HTTPS throughout