Support

We answer every email, usually within two working days.

Contact us

Email ecoach@stacklabx.com and tell us your device, iOS version and what happened. You can also send feedback from inside the app: Profile → Send feedback or report a problem.

Stacklab X Ltd
Registered in England and Wales, company number 16537732
Registered office: 176-178 City Road, Cardiff, Wales, CF24 3JF
ecoach@stacklabx.com

Common questions

Speech recognition isn't working

Speaking practice needs microphone permission and Apple Intelligence enabled. Check Settings → English Coach → Microphone, and Settings → Apple Intelligence & Siri. On first use, iOS may need a few minutes to download the speech model over Wi-Fi. If it still fails, you can type your answers instead — the coaching is identical.

Managing or cancelling Premium

Premium is an Apple subscription. Manage, change or cancel it in Settings → Apple Account → Subscriptions. Cancel at least 24 hours before a trial ends to avoid being charged. Refunds are handled by Apple at reportaproblem.apple.com.

Restoring a purchase on a new device

Open the app, go to Profile → See Premium and choose Restore. Your learning history lives on the old device only — export it first from Profile → Export my data if you want to keep it.

Exporting or deleting your data

Profile → Export my data writes everything to a JSON file you can keep. Profile → Delete all my data removes it from the device permanently. If you published a certificate, email us with the certificate ID to take the public page down.

Certificates and verification

Check any certificate at ecoach.stacklabx.com/verify. A GEP certificate records an unsupervised, on-device assessment aligned to CEFR — it is not a proctored exam and is not an IELTS, TOEFL or Cambridge qualification.

Reporting a security issue

Email ecoach@stacklabx.com with "security" in the subject. Please give us a reasonable chance to fix an issue before disclosing it publicly.