Mockup Master: Dev Tool - Generate Sample Data with Ease

Inject detailed contact profiles including avatars, multiple phone numbers, and organizations.

Simulate complex conversations with varying timestamps and message statuses (read/unread).

Create a robust history of calls with randomized durations to test your call-related logic.

How to Use Mockup Master

01.

Open the app and grant the necessary permissions for Contacts, SMS, and Call Logs. This allows the tool to write data to your device's providers.

02.

Use the dashboard to select how many contacts, messages, or call logs you need. You can use our built-in presets for quick setups.

03.

Tap the "Generate" button. Watch as the tool populates your device in real-time. Your testing environment is ready in seconds!

04.

Finished testing? Use the "Clear" button to safely remove only the data generated by Mockup Master, keeping your device tidy.

Privacy Policy Summary

Last Updated: October 6, 2026

At Mockup Master: Dev Tool, we prioritize your privacy as a developer. This application is a local-only utility.

No Data Collection: We do not collect or store any of your personal or generated data on our servers.
Local Execution: All data generation and insertion happen entirely on your device.
Permissions: Permissions are requested solely to perform the core function of the app (writing mock data to system providers).
No Third Parties: Your data is never shared with, sold to, or accessible by any third parties.

For the full detailed policy, please click here to read the full document.