DualVox Support
DualVox is a talk-through recording app from Zhongke Youyun (Beijing) Information Technology Co., LTD. This page is the App Store support URL: how to reach us, common issues, and where to manage your account or membership.
1. Contact us
- Email: [email protected]
- DualVox website: https://dualvox.mediapea.com/
- Mail: Room 21082, 22F, Building 1, Greenland Plaza, Plot IV-07, Canal Core Area, Tongzhou District, Beijing, China
Hours: 10:00–19:00, Monday–Friday, Beijing time. We usually reply within 1–3 business days. Please include:
- Device and OS version (for example iPhone 15, iOS 18)
- App version (Settings → About DualVox)
- What you did, and whether it happens every time
- A screenshot or short clip if you can
- For account issues, your user ID (Settings → Account & membership; tap the membership row to copy)
2. In-app help
- Feedback: Settings → Help → Feedback (opens Mail to [email protected])
- User guide: Settings → Help → User guide
- Account & membership: Settings → Account & membership (sign in, subscribe, sign out, delete account)
3. Common questions
I can’t open front and rear cameras at once
Dual-cam needs hardware and OS support for simultaneous cameras. If your device doesn’t support it, DualVox shows a notice and falls back to a single camera or media talk-through. That is expected, not a crash.
Camera, microphone, photos, or location don’t work
Turn on the matching permission for DualVox in system Settings. If a permission is off, capture, audio, saving videos, or the place watermark will be unavailable or reduced.
Why does DualVox appear in my video?
The DualVox name appears in the end card after you stop. Free accounts can pick a look in Settings; members can turn it off or use their own video. Info-watermark styles may still show DualVox as part of the stamp.
How do I sign in or copy my user ID?
When you are signed out, tap the small Sign in link on the right of the Account & membership heading. iOS uses Sign in with Apple. Android offers mainland China mobile-number sign-in only in Simplified Chinese. After you sign in, that link is hidden. Tap the membership row under Account & membership to copy your user ID so we can look up membership and orders.
How do I subscribe, cancel, or get a refund?
iOS membership is sold through Apple In-App Purchase. Subscribe and renew in the app and on the App Store. To cancel auto-renewal or request a refund, use your Apple ID (Settings → Apple Account → Subscriptions, or Apple’s refund process). We cannot refund Apple charges on Apple’s behalf.
How do I delete my account?
After signing in, scroll to the bottom of Settings and tap Delete account. We then delete account and related server data under our control (except where the law requires retention). This cannot be undone.
Does the teleprompter appear in the finished video?
No. The teleprompter is only on screen while you record. It is not written into the video. To put words on the clip, use Add captions on the clip preview (on-device recognition, then export).
How do I add captions? Speech Recognition will not turn on
iOS only for now: open a clip preview and tap Add captions. Recognition stays on the device; audio is not uploaded. Enable Speech Recognition for DualVox in system Settings. The first time you use a language, the system may download a pack once; keep the network on. Android is coming later.
Why does the Weather card need the network?
When you pick Weather, DualVox sends the current coordinates to Open-Meteo for temperature. The request does not go through DualVox servers. Place and weather cannot be edited. Without location permission, weather details stay hidden.
4. Legal
- User Agreement
- Privacy Policy
- Membership Agreement
- Personal Information Collection List
- Third-Party Sharing List
- User Guide
5. Developer
- Developer: Zhongke Youyun (Beijing) Information Technology Co., LTD
- Product: DualVox
- Bundle ID: com.uecloud.koubo