Legal

Privacy Policy

Last updated: October 2026  ·  Effective date: April 2026

Yondry is a personal day-planning app. We only collect what we need to make it work, we never sell your data, and we try to explain everything clearly. If something here is confusing, email us.

1. Who we are

Yondry is operated by Yondry Ltd ("we", "us", "our"), a company registered in England and Wales (company number 17267423). Our registered office is 71-75 Shelton Street, Covent Garden, London WC2H 9JQ. We are registered with the Information Commissioner's Office under registration number ZC249614. For any privacy queries, contact us at privacy@yondry.app.


2. What data we collect

Account information

When you sign in with Apple or Google, we receive your name and email address. We do not store your Apple or Google password.

Location data

Yondry uses your location to find places near you, suggest day plans, and optimise routes. We request location permission only when you use the app. We do not track your location in the background.

Places you save

When you save a place — from a link, Google Maps, or Instagram — we store that place's name, address, coordinates, category, and any notes you add. This data belongs to you.

Day plans and visit history

We store the plans Yondry generates for you, and any visit history you record (ratings, notes, companions). This is used to improve future suggestions.

Usage data

We record crash and error reports through Sentry (with personal data collection switched off), and we count activity that is already part of using Yondry — how many plans you have generated, places you have saved, and visits you have logged — in our own database. We do not track which screens you view or how long you spend in the app.

If you agree to it, the app also tells Meta about a few things you do in Yondry, so we can measure which of our ads work. This is off unless you say yes, and you can turn it off anytime. See “Meta (ad measurement)” below.

Device information

We collect your device type, operating system version, and app version for debugging and compatibility purposes.


3. How we use your data

We process your data on the following lawful bases under UK GDPR: contract (to provide the service you signed up for), legitimate interests (to improve the app and prevent abuse), legal obligation (to comply with the law), and consent (for optional features such as marketing communications). The basis for each purpose is noted below.


4. AI and third-party services

Anthropic (Claude AI)

We use Anthropic's Claude AI to generate day plans and tag your saved places. When generating a plan, limited information about your saved places and stated preferences is sent to Anthropic's API. Anthropic does not use this data to train their models by default. You can review Anthropic's privacy policy at anthropic.com/privacy.

Google Places API

We use Google Places to enrich place data (photos, opening hours, ratings). Queries to Google Places may include place names and coordinates. Google's privacy policy applies: policies.google.com/privacy.

OpenWeatherMap

We use OpenWeatherMap to factor current weather into your day plans. We send your approximate location coordinates. Their privacy policy applies: openweathermap.org/privacy-policy.

Google Sign-In / Sign in with Apple

Authentication is handled by Google and Apple. We receive only your name and email. These providers have their own privacy policies which govern how they handle your data during sign-in.

Railway (hosting)

Our backend infrastructure runs on Railway. Your data is stored in a PostgreSQL database hosted on Railway's servers. Railway's privacy policy applies: railway.app/legal/privacy.

Meta (ad measurement, only with your consent)

When you first set up the app we ask whether Yondry may share app activity with Meta Platforms. Only if you say yes does the Meta SDK in the app send Meta these events: that you installed and opened the app, that you created an account (and whether with Google, Apple or as a guest), that you saved a place (and how you added it, such as by hand, from a link or from an import, but not which place), that you created a plan (with the number of stops and the time of day), that you saved a plan, that you finished a plan (with how many stops you visited), and that you subscribed to Yondry Plus (product and price). With them Meta receives device information, and, on iPhone only if you also allow tracking in Apple’s prompt, your device’s advertising identifier. We never send Meta the places you save or plan, your location, or your name or email. Meta uses this to tell us which ads led to installs and sign-ups. The lawful basis is your consent (Art. 6(1)(a)); you can withdraw it anytime in Profile → Privacy & data, and the app then stops sending. Meta’s privacy policy applies: facebook.com/privacy/policy.

RevenueCat (Yondry Plus subscriptions)

If you subscribe to Yondry Plus, we use RevenueCat to manage your subscription status. RevenueCat receives your app user ID and purchase/subscription events (product, renewal, cancellation) from Apple/Google so we can keep your entitlement up to date. RevenueCat never receives your payment card details — payment is handled directly by Apple or Google, who act as merchant of record. RevenueCat's privacy policy applies: revenuecat.com/privacy.


5. Sub-processors

The third-party services described above act as our sub-processors — they process personal data on our behalf to help us run Yondry. Each is bound by a Data Processing Agreement that requires data protection standards no less stringent than those in this policy.

A current list of our sub-processors is available at yondry.app/subprocessors. We update that page whenever a sub-processor is added, removed, or materially changed.


6. Your rights under UK GDPR

If you are based in the UK or European Economic Area, you have the following rights:

To exercise any of these rights, email privacy@yondry.app. We will respond within 30 days.


7. Data deletion

You can delete your account and all associated data at any time from the Profile screen in the app (Profile → Settings → Delete account). Deletion is permanent and irreversible. We will remove your data from our systems within 30 days, except where we are required to retain it by law.


8. Data retention

We retain your data for as long as your account is active. If you delete your account, we delete your data within 30 days. Aggregated, anonymised analytics data may be retained indefinitely.


9. Data security

We use industry-standard security measures including encrypted connections (HTTPS/TLS), JWT authentication, and secure credential storage. However, no system is completely secure. If you believe your account has been compromised, contact us immediately.


10. Children

Yondry is not intended for children under 13 years of age. We do not knowingly collect data from children under 13. If you believe a child under 13 has provided us with personal data, please contact us and we will delete it.


11. International data transfers

Some of our third-party service providers (including Anthropic and Google) are based in the United States. When your data is transferred outside the UK or EEA, we ensure appropriate safeguards are in place in accordance with UK GDPR requirements.


12. Affiliate links

Some links in Yondry — for example "Book tickets" on a place in your day plan — are affiliate links to booking partners such as GetYourGuide. If you make a booking after following one of these links, we may earn a commission. This is at no extra cost to you and does not change the price you pay.

When you tap an affiliate link you leave Yondry and are taken to the partner's own website, which sets its own cookies and processes your data as an independent data controller under its own privacy policy. We do not share your Yondry account data with these partners; we only send you to a pre-filled search on their site.


13. Cookies and tracking

The Yondry mobile app does not use cookies. Our website (yondry.app) may use essential cookies for functionality. We do not use tracking cookies or advertising cookies without your consent. The app shares activity with Meta for ad measurement only if you agree, as described in section 4.


14. Changes to this policy

We may update this Privacy Policy from time to time. We will notify you of significant changes via the app or by email. Continued use of Yondry after changes are posted constitutes acceptance of the updated policy.


15. Contact us

For privacy questions or to exercise your rights:

Email: privacy@yondry.app

You also have the right to lodge a complaint with the UK Information Commissioner's Office (ICO) at ico.org.uk.