Build a to-do and habit tracker app that fits how you work

Every productivity app is someone else’s opinion about how you should work. Building your own lets you keep the two features you love and skip the twenty you don’t. On App Builder Agent, a to-do or habit app is usually the fastest project people finish — under an hour from idea to installed APK.

This guide covers both flavours — task lists and habit streaks — the features that matter, and prompts you can copy.

The pieces worth having

Pick from this list; a great app does four of these very well rather than all of them badly:

• Quick add — One field at the top, Enter to add, natural dates (“tomorrow 6pm”).
• Lists or projects — Work, Home, Study — with a colour each and counts of open tasks.
• Reminders — Local notifications at a time, or “when I open the app in the morning”.
• Habits with streaks — Daily/weekly habits, a tap to complete, a streak counter and a calendar heatmap.
• Today view — Tasks due today plus today’s habits on one screen — the screen you open ten times a day.
• Weekly review — What you finished, what slipped, and a chart of habit completion.
• Backup — Export/import JSON so a lost phone does not mean a lost system.

Build it with App Builder Agent, step by step

Describe your ideal day with the app, not a feature list — the agent turns it into screens.

1. Create a mobile app project. Habit apps live on the phone and need notifications, so pick the mobile type.
2. Describe how you want to use it. Say what the Today screen shows, how tasks are organised and what the habit view looks like.
   Build a to-do and habit app called Rhythm. Today tab: tasks due today grouped by list, then today’s habits with a big check circle. Lists tab with colours. Habits tab with streaks and a 12-week heatmap per habit. Reminders as local notifications. Swipe right to complete, swipe left to delete. Calm, minimal, off-white with one green accent.
3. Use it in the simulator for a minute. Add tasks, complete habits, open the heatmap. Tell the agent what felt slow or confusing.
4. Add the one power feature you actually need. Recurring tasks, a Pomodoro timer, sub-tasks, a widget — one message each.
   Add recurring tasks (daily, weekdays, weekly, monthly) and a “Focus” button that starts a 25-minute timer on the selected task.
5. Install the APK. Export and put it on your home screen. Keep the project; every improvement is a sentence away.

Prompts that work well

Different people, different systems. Each of these prompts yields a different app:

Make it feel finished

• Make the Today screen the first screen. Everything else is secondary.
• Ask for haptics and a satisfying check animation — completion should feel good.
• Keep streaks forgiving: one “freeze” per week prevents users quitting after one missed day.
• Sort completed items to the bottom instead of hiding them; people like seeing progress.

Ship it, and keep tuning

Export the APK and install it. Because the data lives on the device, the app works offline and costs nothing to run. If you want the same lists on your laptop, say so and the agent adds a hosted backend with sign-in so both devices sync through the platform.

Productivity apps change with your life; that is the point of owning the project. Come back and ask for the next feature when you need it.

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