The short version: your birth data stays on your phone, and we never sell anything to anyone.
This page explains what data Yomi collects, where it goes, and what control you have over it. We wrote it in plain English on purpose. If anything here is unclear, email [email protected] and we'll fix it.
Last updated: May 11, 2026.
When you onboard, Yomi asks for your birth date, birth time, and birth city. This is how we calculate your natal chart and compare it to the current sky. Your birth data is stored only on your device, in an encrypted local database. It never leaves your phone.
When Yomi generates a reading or you ask a follow-up question, your device sends our servers a small packet that describes the active transit (which planets, which aspect, which house, how tight the angle is) and your question. We forward this to Anthropic (the company behind Claude, the AI model that writes your readings) and return the reply to your phone.
We don't send your name, address, email, or birth date in this request. Only the astrological context needed to write the reading.
If you subscribe, billing is handled by Apple (via the App Store). Apple tells us whether you have an active subscription. We use RevenueCat to manage that status across platforms. RevenueCat receives an anonymous device identifier and your entitlement status, nothing more.
On first launch, Yomi generates a random ID that lives in your device's storage. We use it to rate-limit API calls so one person can't exhaust the service. This ID is not connected to your name, email, or any other identifier.
We use PostHog to understand which features people use and where the app gets confusing. PostHog receives your anonymous device ID and event names like "user opened the home screen" or "user tapped Go Deeper." It doesn't receive your name, your birth data, or the content of your conversations.
When something breaks, Yomi sends an anonymous crash report to Sentry so we can fix it. Crash reports include diagnostic context about what the app was doing at the time (route name, app state) and the technical stack trace. They don't include your birth data or conversation content.
Yomi uses a few third-party services to function. Here's exactly what each one sees:
Anthropic (Claude AI) — receives the transit context and any follow-up questions you ask. Does not receive your name or birth data. Their privacy policy.
RevenueCat — receives your anonymous device ID and subscription status to manage entitlements. Their privacy policy.
Apple — handles App Store billing and payment. Yomi never sees your credit card. Their privacy policy.
Cloudflare — hosts our server infrastructure. Receives the IP address your request comes from, as all web services do. Their privacy policy.
PostHog — receives anonymous product analytics. Their privacy policy.
Sentry — receives anonymous crash diagnostics. Their privacy policy.
Open Settings in the app, scroll to the Data section, and tap Delete my data. This wipes all locally stored data, including your birth chart, saved readings, and conversation history. Since nothing about you was ever uploaded to an account on our side, there's nothing for us to delete on our end — it's already gone.
Inside the app: Settings → Data → Export my data. Yomi generates a file containing your birth chart, saved readings, and conversation history, and gives you a share sheet to save it wherever you'd like.
If something goes wrong with the export, email [email protected] from the device where Yomi is installed and we'll walk you through it.
Yomi is intended for users 13 and older. We don't knowingly collect data from anyone under 13. If you believe a child under 13 has used Yomi, email [email protected] and we'll delete their data.
Yomi's readings are astrological interpretations generated by an AI model. They're written to help you reflect, not to diagnose medical conditions, give financial advice, or predict the future with certainty. Decisions about your health, money, or relationships should involve humans qualified to help with those specific things.
If we change how Yomi handles data, we'll update this page and note the change in the app before the new version takes effect. We'll never quietly expand what we collect.
Questions, corrections, deletion requests, or just want to say hi: [email protected].