How can we help?
Email is the fastest way to reach Mobile Clean System Lab. Include the details below so we can respond accurately.
Contact details
Same information as our App Store and Google Play developer profiles.
Phone
Address
Central Plaza, 18 Harbour Road, Wan Chai, Hong Kong, Hong Kong SAR
What to include in your email
- App name exactly as shown on the App Store or Google Play
- Device model and iOS or Android version
- Short description of the issue or request
- Screenshots if they help explain the problem
- For purchases: App Store or Google Play order number and approximate purchase date
- For privacy requests: the right you want to exercise and the app involved
We can help with
- Bugs, crashes, and feature questions
- Subscription cancellation guidance (managed in the App Store or Google Play)
- Privacy and data deletion requests
- Copyright or legal notices
Data deletion instructions · Studio Privacy Policy · Studio Terms
Support FAQ
How do I cancel a subscription?
Android: Open Google Play → Payments & subscriptions → Subscriptions, select the app, then cancel. See Google’s guide.
iOS: Open Settings → Apple ID → Subscriptions, select the app, then cancel. See Apple’s guide. Access continues until the end of the paid period.
How do refunds work?
Apple or Google is the seller of record depending on where you bought the app, and may refund within that store’s stated windows. After that, email us with your order number and we will review what we can do under store rules and applicable consumer law.
Where is the privacy policy for my app?
Open the app page from Our apps, or pick the product from the Legal centre. Health-related apps also link to our Consumer Health Data Privacy Policy.
How long do replies take?
We aim to reply within a few business days. Privacy rights requests are handled within 30 days where required by law, or as otherwise stated in the relevant privacy notice.