Your data, plainly explained.
Last updated: May 10, 2026
Who we are
Interview Expert is operated by Great X Inc (Taiwan). We're the data controller for the information described below. Reach us at support@interviewexpert.ai.
What we collect, and why
Audio recordings of your practice answers
When you record an answer to an interview question, the audio is captured on your iPhone, transcribed using Apple's on-device Speech framework, and the resulting transcript is sent to our backend so we can generate coaching feedback.
The audio file itself stays on your device. Only the transcript leaves your phone.
Transcripts and practice metadata
Your transcripts, attempt scores, alternative phrasings you've practiced, and notes generated by our AI coach are stored on our backend (hosted on Supabase, AWS Asia-Pacific Tokyo region) so you can sync across devices and review your history.
We use this data only to power the app's coaching, history, and mastery tracking features. We do not sell it, share it with advertisers, or train third-party models on it.
A device identifier
We generate a random UUID stored in your iPhone's Keychain to associate your synced data with your specific device. This identifier is not your Apple ID, your phone number, your email, or anything that identifies you personally.
Technical context (briefly)
Standard server logs (IP address, timestamp, request path) are kept temporarily to detect abuse and debug failures. These are auto-rotated and not used for any other purpose.
What we do NOT collect
- No name, email, or phone number is required to use the app.
- No tracking across other apps or websites. (See our App Store privacy declaration for the formal version.)
- No advertising identifiers (IDFA) accessed.
- No location data.
- No contacts, photos, calendar, or microphone access beyond what you explicitly grant for recording answers.
Third parties we use
We do not use any analytics, marketing, advertising, or session-replay third parties.
- Supabase (database, edge functions, file storage) — our backend infrastructure provider. Data is stored in their AP-Northeast-1 (Tokyo) region.
- Google Gemini API — our AI coaching model. Your transcripts are sent to Gemini for evaluation. Per Google's API terms, this data is not used to train Google's models.
- Apple App Store / IAP — handles all payment processing. We never see your payment details.
Your rights
- Delete your data anytime. Settings → Clear History deletes locally; emailing us at support@interviewexpert.ai with your device ID deletes from our backend.
- Export your data. Email us; we'll send your transcripts and attempts as JSON within 30 days.
- Stop using the app. Uninstalling removes all local data. Backend data is auto-deleted after 12 months of inactivity.
Children
Interview Expert is intended for users 17 and older preparing for professional job interviews. We do not knowingly collect data from children under 13. If you believe we have, please contact us and we'll delete it immediately.
Changes to this policy
If we change anything material — what we collect, who we share with, how long we keep it — we'll update the "Last updated" date above and, for significant changes, surface a notice in the app.
Contact
Questions? Concerns? Spotted something we should improve? support@interviewexpert.ai — we read every email.