Jarvis — Daniel Schneiderman

01 — The idea

The best input is the one you already use.

Most notes apps ask you to open them, pick a folder, and fill in a form. The fastest thing I do on my phone is send a text, so I built a notes app that works that way. Try it on the phone: switch between the app, Messages, and the Lock Screen.

0 formstags, reminders, and events come from the text itself

5 ways inSiri, Action button, Shortcuts, iMessage, its own number

4 viewsFeed, Board, To-do, Calendar, one store

02 — Decisions

Syntax instead of forms.
#tags, "remind me…", "- sub-items", and #event are parsed from plain text. The message itself sets the structure.
Trade-offSyntax is hard to discover, so it's forgiving ("at 9am", "tomorrow 3pm", "in 30 minutes").
Capture from anywhere.
A Messages automation files any iMessage I send myself. Siri, Shortcuts, the Action button, and a Twilio number backed by a Cloudflare Worker cover the rest.
Glanceable, not openable.
Lock Screen widgets and a "Today" Live Activity update every time I text myself.
Offline first, sync second.
The phone keeps a full copy and syncs with the web in the background. Permanent IDs like N-0024 make notes easy to reference.

The best input is the one you already use.

Syntax instead of forms.

Capture from anywhere.

Glanceable, not openable.

Offline first, sync second.

Say hello.