Effective date: 10 October 2026
This policy explains how QYAI Tech Limited handles information in StepFast. StepFast is an iOS app. This page is published at qyaitech.com.
StepFast is published by QYAI Tech Limited. It runs on iPhone with iOS 17 or later. The app interface is in English.
Email: qyairbx@outlook.com
StepFast uses your daily steps to guide a weight plan. Intermittent fasting is an optional extra. You can use the walking and weight plan without fasting.
StepFast is a wellness app for adults. It does not provide medical advice, and it is not a medical device.
StepFast does not ask you to create an account. There is no StepFast login. The app does not upload your plan, your answers, or your Apple Health readings to QYAI Tech Limited servers.
The app does not include advertising or analytics. We do not sell personal information.
What you enter, and the plan the app builds from it, is stored on that iPhone. That can include:
Age, and the time you confirmed that you are 18 or older
Sex
Height, current weight, and goal weight
Whether you want to lose weight or stay at your current weight
Walking and fasting safety answers, described below
Whether you add fasting, how familiar you are with fasting, and the fasting length you choose
Usual meal times, weigh-in time, and the reminders you turn on
Steps and weight you type in yourself
Day-by-day records the app keeps for your plan, including days you mark as different
Settings, such as whether gentle notes are on
You can skip Apple Health and enter steps yourself.
We do not offer StepFast cloud sync or a StepFast cloud backup. The app does not use iCloud as its own storage. If you turn on iPhone backup, such as iCloud Backup or a backup to a computer, that backup can include the app's file on the phone. The backup is controlled by your device settings. We cannot see it, and we do not use it.
Apple Health access is read-only. If you allow it, StepFast only reads:
Steps
Weight
Workouts
StepFast never writes any data to Apple Health. Weight you log in StepFast stays in the app.
All StepFast data is stored on your iPhone. It is not uploaded, and there is no account.
Readings are used to run the features you see: your step plan, your weight record, and optional fasting. We do not use Apple Health data for advertising or for sale. We do not share it with advertisers or data brokers. We do not send it to our servers.
You can change Health access in the iOS Health app or in Settings. Apple's privacy policy covers Apple Health itself.
These answers are stored on the phone. They are not written to Apple Health, and they are not sent to us.
Walking. StepFast can ask whether a doctor has told you to limit physical activity, whether activity brings on chest pain, dizziness, or faintness, whether a bone, joint, or muscle problem could be made worse by walking, and, where it applies, whether you are pregnant.
Fasting. Fasting is optional. If you choose it, StepFast asks about pregnancy or breastfeeding, diabetes (including medicine that affects blood sugar), eating issues, medicine that has to be taken with food, and a chronic condition or recent surgery. Answering yes keeps fasting off. You can redo the check in Settings.
BMI. StepFast calculates BMI from the height and weight you enter, or from a weight read from Apple Health. If that BMI is under 16, StepFast does not start the program and asks you to talk to a doctor first. If BMI is in the range 16 to 18.5, the plan is walking only and fasting stays off. The same kind of stop can apply later if a new weight puts BMI under 16. StepFast does not delete your existing records when that happens. This is a product limit based on the numbers available to the app. It is not a diagnosis.
Medication. If you tell us you're currently taking a GLP-1 medication, StepFast turns off fasting. This answer stays on your device.
Support with eating. If food, eating, or weight feels stressful, the app can open a short page. That page asks you to talk with a doctor or a mental health professional you trust, and to contact your local emergency number if you feel unsafe. It does not collect a message, and it does not list a phone number or a website.
StepFast has a free tier and an optional paid tier. You can continue with the free version.
The paid tier is an auto-renewable subscription sold by Apple through StoreKit. The price, the billing period, and any introductory offer are whatever Apple shows on the purchase screen. This policy does not restate them.
Apple charges your Apple Account. Apple handles renewal, cancellation, and refunds under Apple's terms. We do not receive your full payment card number. We do not run a separate refund program.
Delete all data does not cancel a subscription. Cancel in your Apple Account subscription settings.
Apple's privacy policy covers the payment information Apple processes.
Reminders are local notifications scheduled on your iPhone. StepFast does not send remote push notifications from a server. You can refuse notification permission and still use the app. You can turn reminders off in the app's Settings.
Information stays on the phone until you remove it or you delete the app.
Delete all data, in StepFast Settings, removes the app's saved file on that phone, a spare copy of that file if the app kept one, temporary export files, and StepFast reminders that were scheduled. It does not cancel an Apple subscription. It does not delete steps, weight, or workouts that already live in Apple Health. StepFast does not write those Apple Health records.
An older copy can remain inside an iPhone backup until you delete or replace that backup. We cannot delete a backup for you.
If you export a file and then share it yourself, that shared copy is outside the app. Delete all data does not reach copies you have already sent.
StepFast is for adults 18 and older. During setup you confirm that you are 18 or older before you can continue. The app is not made for anyone under 18. We do not knowingly keep information from children.
Questions about this policy: qyairbx@outlook.com
QYAI Tech Limited
qyaitech.com
We may update this policy. The new text will be posted at qyaitech.com, and the effective date at the top will change. If you keep using StepFast after that date, the updated policy applies from then on.