todo or not todo

Privacy policy

Last updated 14 October 2026

Who we are

TONT (Todo or Not Todo) is an iPhone app made by Bing Cheng, an independent developer. "We" in this policy means the person who builds and runs TONT. This policy covers the app and this website, tont.app.

What stays on your phone

The app has no account and no server of its own. These stay on your iPhone and we never receive them:

Deleting the app deletes all of this, except the TONT list in Apple Reminders. That list stays in Reminders until you delete it there.

What we collect

We collect three kinds of data. None of it carries your name. It is pseudonymous: tied to a random ID the app creates on your phone, not to you as a person.

The onboarding quiz is optional. Every question can be skipped, and every question except the sleep one offers "Rather not say". There is no free text. The fixed choices are:

If you send feedback from the app, it goes as an email from your own Mail app. We get what you write, any attachments, and your email address, and use them only to reply.

On this website we use Vercel Web Analytics, which counts page views without cookies. If you sign up for launch news, we store your email address and use it only for that.

What we never collect

Your quiz answers are never sent to Meta, Google, TikTok or any other ad network.

How we use it

We never sell your data. TONT shows no ads.

Who processes it

These companies process data for us. They may not use it for their own purposes.

Your choices

How long we keep it

Children

TONT is not directed at children under 13, and the quiz does not ask your age. If we learn that we hold data from a child under 13, we delete it.

Our analytics and purchase services process data in the United States, wherever you live. Where your local law needs a legal basis, we rely on your consent for the quiz answers, which you can withdraw in Settings at any time, and on our legitimate interest in understanding how the app is used for basic usage events. You can object to that too, by turning analytics off.

Changes

If this policy changes, we update it here and change the date at the top. If a change affects how we use data you already gave us, we will ask again in the app.

Contact

Questions, access or deletion requests: bingcheng@tont.app.