Privacy Policy

Last updated: July 4, 2026

The short version: Enduravo has no account and no servers of ours. Everything you enter — your profile, your practice history, your private log, your streaks — is stored only on your device and never reaches us or anyone else. There is no analytics and no tracking.

This policy explains how Enduravo, operated by Ying Zhou ("Enduravo", "we", "us"), handles information when you use the Enduravo iPhone app. It is written to be read, not to be dense.

Information we collect

None that ever leaves your device. Enduravo works entirely on your iPhone. The information you provide or generate in the app — your onboarding answers, program level and progress, completed exercises, your private encounter log, notes, streaks, and settings — is saved in the app's own private storage on your device. We operate no server that receives it, and we have no ability to see, collect, or access it.

You do not create an account. Enduravo does not ask for your name, email address, or phone number, and it does not require you to sign in.

No analytics, no tracking, no advertising

Enduravo contains no third-party analytics, no advertising, no tracking technologies, and no third-party marketing or data-collection SDKs. We do not use cookies or advertising identifiers, and we do not build a profile of you or your activity.

Purchases

Enduravo is free to download and includes a one-time in-app purchase to unlock the full program, preceded by a free trial. All purchases are processed entirely by Apple through the App Store's In-App Purchase system. We never receive or store your name, payment card, Apple ID, or any billing information — Apple handles the transaction and tells the app only whether the unlock is active. Apple's handling of your purchase is governed by Apple's Privacy Policy.

Links to other sites

Some lessons reference external research or resources. Opening such a link shows the page in an in-app browser and takes you to a third-party website that has its own privacy practices. We are not responsible for the content or privacy policies of those sites.

Data retention and deletion

Because your data lives only on your device, you are always in control of it. Deleting the Enduravo app from your iPhone permanently removes all of the data it stored. We hold no copy on our side — there is nothing for us to delete, export, or retain.

Children

Enduravo addresses adult sexual-health topics and is intended for adults. It is not directed to children and we do not knowingly collect information from anyone — on-device or otherwise.

Changes to this policy

If we change this policy, we will update the text and the "Last updated" date above. Because a change ships with an app update, the version you have always matches the app you are running.

Contact

Questions about privacy? Email us at zhouhuancheng0831@gmail.com.

Wellness education, not medical advice. For pain or health concerns, see a clinician.