Gromi Privacy Policy

Last updated: 8 October 2026

The short version

1. Who we are

Gromi is provided by BYGEN AI Kft. (VAT 32746763-2-04, seat 5600 Békéscsaba, Lázár utca 3, Hungary), the controller of the personal data described here. Contact: privacy@bygen-ai.com.

This policy covers the Gromi iOS app and the services behind it. We're based in the EU, so the GDPR applies to our processing wherever you are. The app is currently offered in the United States. Section 13 covers California.

2. What stays on your iPhone

The app keeps its data in a database on your iPhone:

Your sign-in and any Google Calendar access are kept in your iPhone's Keychain, marked for this device only.

3. What leaves your iPhone, when, and where it goes

3.1 Chatting with Gromi (text and photos)

When you send a message, your iPhone sends a request to our server. Our server passes it to OpenRouter, which routes it to an AI model; the chat model is currently GLM, made by Z.ai. The request carries what Gromi needs to answer:

When Gromi looks something up on your phone (your schedule, or a search of your messages and tasks), the result travels the same way. For your schedule that's the title, time and calendar name of the events it needs.

Every request to OpenRouter asks for zero data retention, and to be routed only to model hosts that don't collect data. The content isn't stored or used to train models by OpenRouter or the host that runs the model. Our server holds the request only while answering it.

3.2 Live voice conversations

When you talk with Gromi:

We ask OpenAI not to store these requests. OpenAI may still keep them for up to 30 days to detect abuse, and then deletes them. The transcript of your conversation is saved on your iPhone.

3.3 Dictation

When you speak a message instead of typing it, the recording goes through our server to OpenAI to be turned into text. OpenAI may keep it for up to 30 days, as in 3.2. The recording is deleted from your iPhone once it's transcribed, or after 24 hours if it can't be.

3.4 Gromi's overnight memory

When your iPhone lets apps run in the background, usually overnight, Gromi does two things.

Recap. It sends a finished stretch of conversation, as plain lines of what you and Gromi said, to write a short summary.

Noticing. It sends up to 300 of your own messages from the last 7 days and up to 300 tasks from the last 4 weeks, to notice things worth remembering. It gets back at most three suggestions, and nothing becomes a fact until you confirm it.

Both go through our server to OpenRouter under zero data retention, as in 3.1. The results are stored on your iPhone.

3.5 Calendars

Google Calendar. If you connect it, your iPhone talks to Google directly, and our server never does.

iPhone Calendar. If you choose it instead, Gromi reads the same kinds of details through iOS and writes only to a calendar named Gromi.

What reaches the AI. Event details reach the AI model only as described in 3.1: when Gromi checks your schedule to answer you, when a search matches an event, or when you're on the calendar page while you chat.

When you disconnect or delete your account, events Gromi added stay in your calendar. Delete them there if you don't want them.

3.6 Signing in with Apple

Apple gives us an identifier for your Apple ID. We don't ask for your name or email, and we never see your Apple ID password. We store the identifier only as a keyed hash that can't be reversed.

When you delete your account, we revoke Gromi's access to your Apple ID with Apple.

3.7 Technical records on our server

For every chat turn and voice session, our server records a technical entry:

It contains none of your content, no account identifier and no identifier from your phone. We use it to run the service, find faults and understand cost, and delete it after 90 days.

3.8 App updates

Gromi receives small updates through Expo (EAS Update). When the app starts, it asks Expo's servers whether an update exists. That request carries a random installation identifier, the app's platform and version, and your IP address. Expo's privacy policy applies.

3.9 Purchases

Gromi doesn't sell anything in the app today. When it offers subscriptions, they will be bought through Apple, we won't receive your payment details, and this policy will say which provider manages subscription status before that happens.

3.10 Links

Links in Gromi's replies, and our privacy, terms and support pages, open only when you tap them. The site you open has its own privacy practices.

3.11 This website

gromi.me doesn't use analytics, advertising or tracking. It sets no cookies of its own. Loading a page sends your IP address to our host, Railway, to serve it, and the pages load their fonts from Google Fonts, which receives your IP address and browser details under Google's privacy policy.

4. Your agreement to AI processing

Before anything you send reaches an AI model, the app shows you what goes where and asks for your agreement. Gromi is an AI companion, so you need to agree to use it. If you decline:

You can turn Gromi's AI off at any time in Settings → Gromi's AI. Gromi then returns to the consent screen, and you can agree again whenever you like.

If what you share includes sensitive information, such as your health or beliefs, it's processed as described above, only to answer you, and only because you chose to share it and agreed to AI processing.

5. Google user data

Gromi's use and transfer to any other app of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements. In particular:

6. What we don't do

7. Why we process your data (GDPR legal bases)

Processing Legal basis
Your account, sign-in and deletion Performance of our contract with you
Sending your content to AI providers to answer you (3.1–3.4) Your consent (the AI consent screen), and performance of the contract
Sensitive information you choose to share Your explicit consent
Calendar features Performance of the contract, and your choice to connect
Technical records (3.7) Our legitimate interest in running a reliable, affordable service
App updates (3.8) Our legitimate interest in delivering fixes
Legal obligations such as crisis-referral reporting Legal obligation

You can object to processing based on legitimate interests (section 12).

8. Who receives data

Recipient Role Receives Location
Railway Hosts our server and database Requests in transit; account hashes; technical records EU (Netherlands)
OpenRouter, and the model hosts it routes to AI for chat and overnight memory Content described in 3.1 and 3.4, under zero data retention US; model hosts may be elsewhere
OpenAI Live voice, dictation, describing photos during voice Audio, voice-conversation text, those photos US
Apple Sign in with Apple, App Store, subscriptions Sign-in; purchases US
Google Only if you connect Google Calendar Your calendar requests, sent directly from your iPhone US
Expo App updates Installation identifier, app version, IP address US

These companies act as our processors, or, for Apple and Google, under their own terms for their own services. We may also disclose data where the law requires it.

9. International transfers

Our server runs in the EU, and several providers are in the US. Where personal data moves between the EU and other countries, we rely on the EU–US Data Privacy Framework where the recipient is certified, or on the European Commission's Standard Contractual Clauses. Ask us for details at privacy@bygen-ai.com.

10. How long data is kept

Data Kept
Everything on your iPhone Until you delete it, delete your account, or uninstall the app
Your account (hashed identifiers, creation date) Until you delete your account
Sign-in sessions Up to 180 days, renewed as you use the app; removed at sign-out or deletion
Technical records 90 days
Content sent to OpenRouter and its model hosts Not stored (zero data retention)
Content sent to OpenAI Up to 30 days, for abuse monitoring
Expo update requests Under Expo's policy

11. Deleting your data

Settings → Delete account (also on the consent screen, if you haven't agreed to AI processing) deletes:

It can't be undone.

It also cancels any reminders Gromi scheduled on your phone.

It doesn't delete:

Signing out keeps your data on the iPhone, so you can sign back in.

12. Your rights

Under the GDPR you can:

Because your content is on your iPhone, you can see and delete it there directly. Our server holds only the hashed account data and technical records described above.

Write to privacy@bygen-ai.com. We answer within one month and may need to confirm your identity. You can also complain to a data protection authority, such as Hungary's NAIH or the authority where you live.

13. California

California residents have the right to:

We collect the categories described above: identifiers (hashed), content you choose to send for AI processing, and audio. We don't sell or share personal information, and we don't use sensitive personal information to infer characteristics about you. To make a request, write to privacy@bygen-ai.com.

Crisis protocol (SB 243). Gromi is an AI companion, not a person. If someone expresses thoughts of suicide or self-harm, Gromi refers them to 988 and other crisis resources. Our crisis protocol is published at gromi.me/safety. Companion chatbots may not be suitable for some minors.

14. Children

Gromi is for people aged 16 and over. It isn't directed at children under 13, and we don't knowingly collect their personal information. If you believe a child has used Gromi, contact us and we'll help delete the account.

15. Security

16. Changes

We'll post changes here and update the date above. For material changes we'll also tell you in the app. If a change affects what reaches the AI, we'll ask for your agreement again.

17. Contact

BYGEN AI Kft., 5600 Békéscsaba, Lázár utca 3, Hungary. privacy@bygen-ai.com (privacy) · info@bygen-ai.com (everything else)