Data Deletion Instructions

Your Right to Data Deletion

At Hemistich, we respect your right to control your personal data. You can delete your account, and with it the data we hold about you, at any time. This page explains how to do so and what happens afterwards.

What Data We Store

Depending on how you use Hemistich, we may store the following, all linked to your account:

• Profile information: Your name and email address, your sign-in details (including a Google account identifier if you use Google Sign-In, and your WhatsApp number if you linked one), and the study details you gave us, such as your school or university, department, level and country
• Your study material: Files saved to your vault and the results our tools generated for you
• Things you set up: Reminders, your weekly timetable, GPA records and notification settings
• Activity and billing: Credit and usage history, streaks, referral records, and payment records (plan or pack, amount, status and reference, but never your full card number)
• Voice usage totals: A monthly count of voice time used. We do not store your voice recordings or your Talk conversations
• Usage statistics and short-lived AI cache: Cached AI responses are deleted after up to 72 hours

Your chat conversations are kept in your own browser and not on our servers. Deleting your account does not clear your browser, so you can clear it yourself in your browser settings.

What Happens After Deletion

Once your deletion has been processed and the grace period below has ended:

• Your profile and sign-in details are permanently removed from our database
• Files in your vault are permanently deleted
• Your saved results, reminders, timetable and GPA records are erased
• Your credit, usage and payment records held by us are erased
• Notifications, streaks and referral records linked to you are erased

There is a 30-day grace period. When you delete your account you are signed out immediately and it stops working straight away, but we keep your data for 30 days first. That exists so an accidental deletion can be undone. We will tell you the exact date your data is erased.

To recover your account within those 30 days, email support@hemistich.com, or message us on WhatsApp if your number is linked, and we can restore it exactly as it was.

After 30 days, deletion is permanent. Your data is erased and cannot be recovered. You are free to start using Hemistich again after that, but you will begin with a fresh account.

Processing Time

• In the app or via WhatsApp: Account closed immediately; data erased after the 30-day grace period
• Via email: We process your request within 30 days

Data Retained After Deletion

In some cases, minimal data may remain after your account is erased:

• Support conversations you started with us, with the link to your account removed
• A record that your email address has opted out of our emails, so we do not email you again
• Records our payment provider, Flutterwave, keeps under its own legal obligations
• Technical server logs kept for security and fault-finding
• Records required for legal compliance or dispute resolution, and abuse-prevention records if your account was flagged for violations
• Analytics and session recordings already held by PostHog, which are removed on its own retention schedule (see our Privacy Policy)

Information that our AI and speech providers (Google and Microsoft) process to answer a request is handled under their own terms, as explained in our Privacy Policy.

Questions?

If you have any questions about data deletion or your privacy rights, please contact us:

• Email: privacy@hemistich.com
• WhatsApp: Message our bot