Develop Android Calculator App – UI Ready (Figma Provided)

I am looking for an experienced Android developer to build a calculator app with both standard and scientific calculation features.

The UI/UX is already fully designed in Figma, so the scope and flow are very clear. You will simply need to follow the design and implement the functionality accordingly.

Project Scope:

Standard calculator (basic operations: +, −, ×, ÷, %)
Scientific calculator (functions like sin, cos, tan, log, sqrt, etc.)
Smooth and responsive UI as per Figma design
Accurate calculation logic
Proper error handling (divide by zero, invalid inputs, etc.)

Important:

I will provide the Figma design link after you request access
Please review the design before finalizing your bid

Requirements:

Strong experience in Android development (Java/Kotlin)
Experience building calculator or math-based apps (preferred)
Ability to follow UI designs precisely
Clean and optimized code

Deliverables:

Fully functional Android app
Source code
Proper testing to ensure accuracy

Budget & Timeline:

Please share your best price and estimated timeline after reviewing the Figma

If you have built similar apps before, please share examples.