Android App for Watermark-Free TikTok Downloads

I'm seeking a developer to create a straightforward Android application that enables downloading TikTok videos without watermarks.

Key Features:
- Paste a TikTok link and download the video without a watermark
- Store downloaded videos with a history
- Simple and fast interface
- Integrate AdMob ads for monetization

Preferred Technology:
- Flutter (Dart) or Android (Kotlin)
- Any other effective solution proposed by the developer

Deliverables:
- Functional APK + source code
- Simple documentation for future management

Budget: Maximum €100
Deadline: Maximum 7 days

Please provide examples of similar applications you have developed.