Answers to the most common NutriStack questions, organized by topic, and a direct line to a real person when you need one.
Direct contact
For bugs, feature ideas, billing, or account help. Every email is read.
Support email
For privacy questions or data-deletion requests, write to privacy@nutristackapp.com. We aim to reply to all support within 2–3 business days.
Subscriptions & billing
Pro is an auto-renewing subscription, billed by Apple. The app is free to use without it.
Open Settings in the app and tap Restore Purchases. As long as you are signed in to the same Apple Account that bought the subscription, Pro access will be restored, including on a new device.
Subscriptions are managed by Apple, not inside NutriStack. On your iPhone, open Settings → [your name] → Subscriptions, choose NutriStack Pro, and turn off auto-renewal.
Cancel at least 24 hours before your renewal date to avoid the next charge. You keep Pro access until the end of the period you have already paid for.
Because Apple processes all billing, refunds are handled by Apple. We cannot issue them directly. Request a refund at reportaproblem.apple.com. See the Terms of Service (Section 5.5) for details.
Pro unlocks the AI supplement advisor and related stack-aware tools. It is US$6.99 / month or US$49.99 / year (prices may vary by region and are always shown in the App Store before you buy). NutriStack is free to download and use without Pro.
Your account & data
You stay in control of your information at all times. The app can run with no account at all.
No. NutriStack works in a local-only mode with no account, so your data stays on your device. Creating an account (Sign in with Apple, Google, or email) adds encrypted cloud backup and sync across your devices.
Sync only happens when you are signed in. Make sure you are signed in to the same account on each device, and that the device has an internet connection. If you used local-only mode before, sign in to back up your existing data to the cloud.
In the app, open Settings → Account → Delete Account. This permanently deletes your cloud backup, your authentication account, and the app data on that device.
Deleting your account does not cancel an active App Store subscription. Cancel that separately through Apple. If you cannot use in-app deletion, email privacy@nutristackapp.com.
Features & troubleshooting
Five things that catch most users at least once. If your issue is not here, email support.
The AI advisor is a Pro feature and requires you to be signed in with an active subscription. To keep the feature sustainable and secure, each account has a daily usage limit that resets every day. If you see a limit message, try again the next day.
The scanner needs camera permission. On your iPhone, open Settings → NutriStack → Camera and make sure access is enabled. The camera is used only for scanning and is never used for anything else.
Reminders need notification permission. Open Settings → NutriStack → Notifications on your iPhone and enable notifications. Also check that you have set reminder times for your supplements inside the app.
We would love to hear from you. Email support@nutristackapp.com with as much detail as you can. What you expected, what happened, and your iPhone model and iOS version help a lot.
NutriStack is an iPhone app and runs on iPhone with a recent version of iOS. It is not a separate iPad app.
Last updated May 26, 2026. More questions? Email support@nutristackapp.com.
Important
The shortest possible answer: no. The longer answer is below.
No. NutriStack is an informational and organizational tool. It is not a medical device, a healthcare provider, or a telehealth service, and it does not provide medical advice, diagnosis, or treatment.
Everything in the app, including AI advisor responses, research summaries, and interaction flags, is for general educational purposes only. Always consult a physician, pharmacist, or other qualified healthcare professional before starting, stopping, or changing any supplement or medication. In a medical emergency, call your local emergency number immediately.
Full details in the Privacy Policy and Terms of Service.
NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.
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