Does Google Tasks support subtasks on iPhone?

Short answer

Yes. Google Tasks supports subtasks: a parent task can have nested child tasks underneath it. Those parent and child relationships sync across Google’s surfaces, including Gmail’s Tasks panel, Google Calendar’s Tasks view, and the Google Tasks apps.

On iPhone, that means you can break a big item into steps without creating a brand new list for every project. The feature exists. The experience is still minimal.

How subtasks work in Google Tasks

Google’s model is simple:

• A task can sit at the top level of a list.
• You can indent another task under it so it becomes a subtask.
• Completing a parent does not always match how you think about “done” for the children, so it helps to finish the steps first, then the parent.
• Subtasks stay tied to the same list as the parent. They are not a separate shared project board.

That is enough for groceries under “Shop,” steps under “Ship order,” or a short prep checklist under “Dentist visit.” It is not a full project system with sections, dependencies, or multiple nesting levels that feel easy to manage on a phone.

What the stock iPhone app makes hard

People search for subtasks because flat lists get noisy. The official Google Tasks app on iPhone lets you create nested items, but the UI stays thin:

• Indenting and outdenting is easy to miss if you are used to drag handles or clear checklist controls.
• Deep nesting is awkward. Two levels is usually the practical ceiling before the list feels cramped.
• There is no strong “checklist mode” for a parent task: you get nested tasks, not a polished step list with clear progress.
• Viewing one list at a time makes it harder to scan parents and children across Work, Personal, and Errands together.

If your day is a handful of simple lists, that may be fine. If you routinely turn one task into five steps, the friction shows up every time you open the app.

Subtasks vs notes vs more lists

Three common workarounds people try:

1. Stuff steps into the notes field. Fast, but you cannot check steps off independently, and they do not show as real tasks in Calendar or Gmail.
2. Make a new list for every project. Cleaner labels, worse overview. You end up hopping lists all day.
3. Use real subtasks. Best when each step needs its own completion state, and sometimes its own due date.

Use notes for context (links, addresses, one-line details). Use subtasks when the steps themselves are work you want to complete.

When a native Google Tasks client helps

Keep Google Tasks as the system of record if you live in Gmail and Calendar. You do not need to abandon that ecosystem to get a clearer checklist experience on iPhone.

ETasks is a native Google Tasks app for iPhone, iPad, and Apple Watch. It syncs task lists, tasks, and subtasks both ways with Google Tasks, so steps you check off on iPhone stay checked in Gmail’s Tasks panel. On top of that sync, it is built for planning on Apple devices: checklists and planner views, an all-lists overview, and the iPhone features Google’s own app still skips.

You still own the same Google Tasks data. You just get a better way to break work into steps on the phone you actually use.

Quick answers

Does Google Tasks have subtasks? Yes. You can nest tasks under a parent task, and that relationship syncs across Google’s apps.

Can I add subtasks in Google Tasks on iPhone? Yes, in Google’s Tasks app. The controls are basic, so many people find them easy to overlook.

Do Google Tasks subtasks appear in Gmail and Calendar? Yes. Because they live in Google Tasks itself, nested items stay part of the same task data Google shows elsewhere.

Is there a better checklist experience for Google Tasks on iPhone? Google’s app stays minimal. ETasks keeps two-way Google Tasks sync and adds a native checklist and planner workflow.