To get a fast answer, include: the email address on your account, your phone and OS version (e.g. iPhone 13, iOS 18), the app version, and what you expected to happen versus what happened. A screenshot helps more than a description.
Common problems
I can't sign in
Check that you have a working connection, then force-close the app and open it again. If you have more than one Google account, make sure you are picking the one you originally signed up with — a different account is a different Target 720 account with its own progress. Still stuck? Email us with the address you are trying.
My progress is missing
Progress is stored on our servers against your account, so it follows you to a new phone as long as you sign in with the same Google or Apple account. If a chapter you finished looks empty, pull to refresh; if it is still wrong, email us and tell us the chapter and roughly when you completed it.
A question or explanation looks wrong
Please tell us — we would rather fix it than have you learn it wrong. Send the subject, chapter, and the question as you see it, and what you believe the correct answer is. Corrections ship over the air, so you get the fix without updating the app.
Subscriptions, billing and refunds
The full rules are on the Refunds & Cancellations page. The short version:
- A subscription bought inside the app is sold and billed by Apple or Google, not by us.
- To cancel: iPhone — Settings → your name → Subscriptions. Android — Play Store → profile → Payments & subscriptions → Subscriptions. Cancel at least 24 hours before the renewal date, or that renewal still goes through.
- Refunds on a store purchase are decided by Apple or Google under their own policies. Request one at reportaproblem.apple.com or in the Play Store order history. We cannot refund a store purchase, but tell us what went wrong and we will put what your account shows in writing so your request carries evidence.
- A subscription bought directly from us is not refundable. A billing error — charged twice, charged and never given access, charged after we confirmed a cancellation — is different, and we always correct it. Email us with the receipt.
- Paid but the app still shows the free tier? Force-close and reopen it so the entitlement re-checks. If it is still locked after a few minutes, email us with the store receipt.
I want my data, or I want my account gone
Both are self-service in the app: gear icon → Data & account → Export my data or Delete account. Full instructions and exactly what deletion covers: Delete your account.
Parents and guardians
If your child uses Target 720 and you want to see what we hold, correct it, or have it erased, email support@vidyn.ai and we will act on it. See the Privacy Policy for what we collect and why.
Reporting a security issue
Found a vulnerability? Email support@vidyn.ai with the subject “Security report” and enough detail to reproduce it. Please give us a reasonable chance to fix it before disclosing it publicly. We will acknowledge within 2 working days.