Say it.
See it sorted.
Hold to speak. Watermelon catches the tasks, dates, and details in the messy version — then gives you back a clean list.
Hold to speak
Ready
01Hold, don't type.
02Say the messy version.
03Let go. It's sorted.
No keyboard. No account. On-device first.
A press, not a form.
Watermelon is built around the quickest way to get something out of your head: hold, speak naturally, and release.
- No keyboard or input fields. One gesture is enough.
- Say several things, dates, and details in one breath.
- Your sentence comes back as clear, separate tasks.
AI shapes every task for you.
Free includes AI shaping to find dates, pick the right shape, sort lists, and set priority. Pro removes the limit.
More shape, when a checkbox isn't enough.
Voice capture stays simple. For longer work, choose the progress type that fits: percent, count, checklist, stages, or a running note.
Zoom out. See what needs you.
Your projects, lists, and tasks become one living constellation. Move from the whole picture to a single task without losing where it belongs.
- Projects, lists and tasks as one constellation
- Live progress rings and overdue flags
- Pinch from the big picture down to a single task
Say what happened. Keep the day.
Hold beside any day and talk. Watermelon turns your words into a diary entry, then keeps it alongside the task changes that shaped the day.
Wrapped the first draft and sent it to the design team.
Hold a task. Say the change.
Press and hold any task and say the change: “push to Friday,” “add buy milk,” or “mark high priority.” The task updates without a trip through menus.
A plan at dawn. A recap at dusk.
Morning plan, evening recap, written by AI from your own tasks. Wake up knowing where to start; wind down seeing what landed and what rolls over.
3 tasks due today. The Q3 report is the big rock — and you're already 62% in.
— Start with the report while it's quiet.
You closed 5 today, dentist booking included. Rent rolls to tomorrow.
— Solid day. Rest easy.
Everywhere you work.
Tasks, lists, projects and progress stay synced across iPhone, iPad and Mac. Due-date tasks flow into Apple Calendar automatically, and home-screen widgets keep today one glance away.
- Sync across iPhone, iPad, Mac
- Two-way Apple Calendar sync
- Today Focus, Mini Board and Task List widgets
Your AI. Your key.
Prefer to run on your own model? Power every AI feature with your own OpenAI-compatible API key. Your key stays on this device; requests go straight to your provider.
- Works with OpenAI, OpenRouter, Together, or a local server
- Your key is stored on-device, never synced
- Your provider, your model, your quota
Your voice stays close.
Your recording stays on your phone. Task shaping runs on-device when available; otherwise only the transcript may be sent to Cloud AI. There is no account to create and no ad tracking.
Built for Apple Intelligence.
On supported iPhones, tasks are analysed and shaped right on the chip. When on-device AI is unavailable, Watermelon can use Cloud AI while Free actions remain — the transcript may be sent, but your audio stays on your phone.
On-device first
Voice capture works on your iPhone, including offline.
No account
Open the app and start. Nothing to sign up for.
No tracking
Your tasks are yours. We don't follow you around.
Invisible AI
The best available engine is picked for you. No providers to configure.
At home on iOS.
Designed for iPhone and iPad, with widgets, dark mode and Apple Calendar built in.
Download
Today, at a glance
Progress, your wayGet more done, with or without us.
Honest, practical guides on AI to-do apps, voice capture, and planning routines.
Your next list starts with one sentence.
Hold, speak, and get on with your day. Watermelon Todo is free to download on iPhone.
Free on iPhone. iOS 17+.