laya

Privacy policy

Your health data stays on your phone. This page explains exactly what that means, and the few things that do leave it.

Effective 20 October 2026 · Applies to the Laya app on Android and iPhone, and to this website.

The short version

  • Your health data never reaches us. Laya reads it from Health Connect (Android) or Apple Health (iPhone), works everything out on your phone and keeps it there. We have no copy.
  • No account for Free and Plus. You do not sign up, and the app sends us nothing about you.
  • No ads, and no advertising trackers. We never sell or share your data, and never use it for advertising or marketing.
  • Usage analytics only if you say yes. Laya asks once whether it may send anonymous usage events, such as which screens you open, so we can improve the app. They never include a health value. It stays off unless you turn it on, and you can turn it off in Settings at any time.
  • A few things leave the phone, only for a reason you can see: purchases (Google Play or the App Store, with RevenueCat), usage analytics if you opt in, the optional Google Health connection, optional map tiles, and anything you choose to export, share or email.
  • You are in control. Delete everything in the app at any time, or uninstall it. Write to us with any question.
  1. Who we are
  2. What stays on your phone
  3. The health data Laya reads
  4. What Laya writes back
  5. What leaves your phone
  6. Optional usage analytics
  7. Purchases
  8. The Google Health connection
  9. Health Connect and Apple Health
  10. What we never do
  11. Permissions the app asks for
  12. This website, and buying on it
  13. Who processes data for us
  14. Keeping and deleting data
  15. Security
  16. Your rights
  17. Consumer health data (US)
  18. Children
  19. Changes to this policy
  20. Contact

Who we are

Laya is published by Axxtreme Labs (“Laya”, “we”, “us”). For the little personal data we do receive, described below, we are the data controller (under the GDPR and UK GDPR) and the data fiduciary (under India’s Digital Personal Data Protection Act, 2023).

Write to us at support@layahealth.app about anything in this policy. That address also reaches the person responsible for handling privacy questions and grievances.

What stays on your phone

Laya is built so that your health data has no copy anywhere but your phone. Everything below is stored only in the app’s private storage on your device:

We cannot see, access or recover any of it. Free and Plus have no account and no server. During setup, Laya asks for your consent to process your health data on the phone to give you insights. You can withdraw it by deleting everything (see Keeping and deleting data).

Usage analytics, if you opt in, sends anonymous events about how you use the app, never the health data above. See Optional usage analytics.

The health data Laya reads

Laya asks Health Connect (Android) or Apple Health (iPhone) for permission to read the types below. You choose which to allow, type by type, and can change your choice at any time in Health Connect or the Health app. Laya works with whatever you allow and reads only on your phone.

KindTypes Laya can ask to readUsed for
Heart and breathingHeart rate, heart rate variability, resting heart rate, respiratory rate, blood oxygenRecovery, your usual ranges, heart rate above your usual
SleepSleep sessions and stagesSleep, naps, bedtime suggestions
TemperatureBody, skin and basal body temperature (and wrist temperature on iPhone)Your usual ranges, cycle context
ActivityWorkouts, routes recorded by your watch, distance, steps, active and total calories, speed, cadence, power, elevation, floors, wheelchair pushes, activity intensity, VO₂ max, planned workouts, mindfulness sessionsMovement, strain, workout details and maps
BodyWeight, height, body fat, lean mass, bone mass, body water, basal metabolic rateProfile and body trends
VitalsBlood pressure, blood glucoseVital pages and the doctor checklist
CycleMenstruation, ovulation tests, cervical mucus, spotting between periods, sexual activityThe cycle page and cycle-aware baselines
Food and waterNutrition and hydrationFood logging, where available

On Android, Laya also asks to read in the background (so mornings are ready when you open the app) and to read data from before you installed it (so it can learn your usual sooner). Both are optional.

What Laya writes back

Writing is off by default. Only if you turn it on, one type at a time, Laya saves what you log in Laya into Health Connect or Apple Health, so your other apps can see it: cycle logs (on Android), meals and water, weigh-ins and workouts. Once written there, that data is managed by Health Connect or Apple Health, and stays there if you delete Laya.

What leaves your phone

Only these, and only for the reason given. None of them includes your health data unless you send it yourself.

WhenWhat is sent, and to whomWhy
You view or buy a planAn anonymous app user id, your purchases and store country, and basic device and app details, to RevenueCat and to Google Play or the App Store. No name, email or health data.To sell, restore and check subscriptions
You opt in to usage analyticsAnonymous usage events, such as screens opened and buttons tapped, with an anonymous install id and basic app and device details, to PostHog (EU cloud). Never a health value. Off unless you turn it on.To see which parts of the app work and which confuse people
You connect Google Health (optional)Requests to Google’s Health API, signed in with your Google account. Your data comes from Google to your phone; nothing goes back.To bring in Fitbit or Pixel data that is not in Health Connect
You turn on map tiles (optional, off by default)Your IP address and the map area shown, to the OpenStreetMap tile server. The route itself never leaves the phone.To draw a map under a workout route
You send a bug reportAn email you write and send from your own mail app, with a diagnostics file of sync and connection details. It contains no health values.So we can help you
You export, share, copy or back upA file, image, PDF or copied text that you save, paste or send through your phone’s share sheet, to wherever you choose.Your choice; we never receive it unless you send it to us
You open a linkLinks to this website, the store or another app open in your browser or that app.Their own policies apply

Notifications are scheduled on the phone itself; Laya uses no push service. Background updates read Health Connect and need no network connection.

Optional usage analytics

To learn which parts of Laya help and which get in the way, Laya can send anonymous usage events. It asks you once, during setup, and does nothing unless you say yes. You can turn it on or off at any time in Laya’s Settings.

We use these events only to improve Laya, never for advertising, and we do not sell or share them. Our legal basis is your consent, which you can withdraw at any time by turning analytics off.

Purchases

Paid plans are sold through Google Play on Android and the App Store on iPhone. They handle your payment details under their own terms and privacy policies; we never see your card or bank details.

The app uses RevenueCat, Inc. to manage subscriptions. RevenueCat receives an anonymous id that the app creates, your purchase and subscription history, the store country and basic device and app details. It does not receive your name, email or any health data from Laya. Its privacy policy is at revenuecat.com/privacy. We use this information only to give you what you paid for, and to keep the records that tax and accounting law require.

The Google Health connection

Where Laya offers it, you can choose to connect your Google account so Laya can read your Fitbit or Pixel data from Google’s Health API. It is optional and off until you connect.

Laya’s use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

Health Connect and Apple Health

Data Laya reads from Health Connect or Apple Health is used only to show you your own health and wellness information inside Laya. In particular:

Laya’s use of data received from Health Connect follows the Health Connect permissions policy, including its Limited Use requirements. On iPhone, Laya follows Apple’s HealthKit rules: HealthKit data is not used for advertising or data mining, not shared with third parties, and Laya does not store it in iCloud.

What we never do

Permissions the app asks for

On Android

Laya asks for no location, camera, microphone, contacts or photo access.

On iPhone

This website, and buying on it

This website uses no cookies, analytics, trackers or ads. Your theme and country choices are kept only in your own browser. The site is hosted by Cloudflare, which processes your IP address to deliver pages and protect against abuse. Fonts load from Google Fonts, so Google receives your IP address when a page loads.

If you buy a plan on this website, or sign in to the app with your email to unlock a website purchase, our server (run on Cloudflare) processes:

WhatWhyHow long
Your email, plan, its status and renewal date, and Dodo Payments’ customer, subscription and payment idsTo unlock what you paid for and send the reminder before a trial ends or a year renewsWhile the purchase runs; finished purchases are removed when you delete your account, except records tax law requires
A 6-digit sign-in code, stored only as a one-way hashTo prove the email is yours10 minutes at most
A random device id the app creates (not a hardware id) and a session recordTo keep the app signed inUntil you sign out or delete your account
Your IP address, briefly, with rate-limit counters keyed by a one-way hash of itSecurity and abuse preventionCounters: up to 2 days

Dodo Payments is the merchant of record for website purchases: it collects your payment details, handles tax and sends receipts under its own privacy policy. Resend delivers the sign-in and reminder emails. None of them receives any health data. We never ask for your name, date of birth, location or contacts.

Some of these services process data outside your country, including in the United States. Where the law requires it, transfers rely on safeguards such as the European Commission’s Standard Contractual Clauses.

Who processes data for us

Google Play and the App Store handle in-app payments under their own privacy policies. Google also serves this site’s fonts and, if you connect it, the Google Health API. None of these receives your health data from us.

Keeping and deleting data

Security

Your data lives in Laya’s private app storage, which other apps cannot read, protected by your phone’s own encryption and screen lock. Sign-in tokens are kept in the Android Keystore or the iOS Keychain. Every connection Laya makes uses HTTPS. Because we hold no copy of your health data, a breach of our systems could not expose it. Keep your phone locked and up to date; anyone who can unlock it can open Laya.

Your rights

Your health data is on your phone, so you exercise most rights yourself, at any time: see it in the app, correct it at its source, export it in Settings›Your data, and delete it with Delete everything. For the data we or our providers hold (purchases, usage analytics if you opted in, website sign-in and support emails), you can ask us to:

Write to support@layahealth.app. We answer within 30 days, or sooner where the law requires, and we do not charge for it. We may need to confirm the request is yours, for example by replying from the email linked to your purchase.

If you are in the EU, the UK or the EEA

We use purchase and account data to perform our contract with you, security data for our legitimate interest in keeping the service safe, and anything optional (usage analytics, the Google Health connection) with your consent. You can complain to your local data protection authority.

If you are in India

Under the Digital Personal Data Protection Act, 2023, you can ask for a summary of your personal data and how it is used, its correction, completion, updating and erasure, and you can nominate someone to exercise your rights if you cannot. Write to us first so we can resolve any grievance; if we do not, you can complain to the Data Protection Board of India.

If you are in the United States

We do not sell personal information or share it for cross-context behavioural advertising, as those terms are used in California and other state laws, and we do not use sensitive information to infer anything about you. You have the rights listed above whatever state you live in, and we will not treat you differently for using them. If we decline a request, you can appeal by replying to our answer.

Consumer health data privacy policy (US)

Washington’s My Health My Data Act, Nevada’s consumer health data law and similar state laws protect “consumer health data”. Laya is designed so that we do not receive your health records: the app reads and processes them only on your phone, and none of them is sent to us. Because these laws define collecting broadly, we explain here how Laya handles it anyway.

Children

Laya is not meant for anyone under 16, and we do not knowingly collect personal data from children. If you believe a child has bought a plan or written to us, contact us and we will delete what we hold.

Changes to this policy

If we change how Laya handles data, we will update this page and its effective date first. If a change matters, for example a new kind of data leaving your phone, we will tell you in the app before it applies, and ask for your consent where the law requires it. Features that would use our servers, such as a coach, will not be switched on until this policy describes them.

Contact

Axxtreme Labs
support@layahealth.app