One by One Terms of Use

Last updated: June 5, 2026

One by One uses Apple's standard End User License Agreement.

One by One Pro

One by One Pro is a paid entitlement that helps users turn their current state into a short Begin flow and continue it on iPhone and Apple Watch. Product information and prices are based on what appears in the App Store and may vary by country or region.

Subscriptions

Monthly and yearly subscriptions automatically renew through the App Store. Users can manage or cancel subscriptions at any time from the App Store account subscription screen.

Free Trials and Introductory Offers

For eligible users, the yearly subscription may include a 7-day free trial or introductory offer shown in the App Store purchase sheet. If a free trial is shown, users are not charged until the trial ends, and the subscription automatically renews at the price and period shown by the App Store unless canceled before the trial ends.

Existing Data

If a subscription expires, existing local data and records created by the user are not deleted. However, the Pro experience, such as new Begin generation, continued execution flows, and Apple Watch continuity, may require an active subscription.

Not Medical Advice

One by One is an AI execution app that turns the current state into short Begin execution flows. Suggested Begins or step adjustments in the app are not medical, diagnostic, or treatment advice.

Support

For questions and support, use the support page.