Knock Messaging vs Cinq App

Knock Messaging lets you send messages and media through iMessage. Recipients can instantly view shared content using an App Clip or the full app. The App Clip provides a fast and lightweight way to preview messages without installing the full app. Knock Messaging is designed for simple, direct message sharing with a seamless experience across supported devices.

Stop texting back and forth trying to find a time. Cinq lets you create events and availability polls right inside iMessage — no app download needed for your friends. Create: Pick your dates, choose a time window, and send a beautifully styled invite directly into your group chat. Choose from three cover themes (Terminal, Blueprint, Data Card) with multiple color options, or upload your own image. Invite & Polling: Fixed invites for when you already know the date and just need RSVPs. Availability polls for when the group needs to find the best time — everyone marks their slots, and Cinq surfaces the top options. Accessible: Your friends don't need to install anything. Toggle on "Include web link" and anyone without the extension can participate through a browser link sent right in the chat. Smart Availability: Tap or drag to mark when you're free. See how many people overlap on each slot with clean count badges. Two-level selection — mark times as "available" or "preferred" so the host can pick the best fit. Google Calendar Integration: Connect your Google account to see your busy times overlaid on the grid. When a time is confirmed, it lands on your calendar automatically. Privacy-first: Phone verification only — no marketing texts, ever. Guest participants don't need an account. Your data stays yours.