Build a Custom Calculator App

Turn recurring calculations, conversions, and estimates into a calculator that remembers how you work.

Author:Moldable

Category:Utilities

Scientific mathUnit conversionsSearchable history

Try in Moldable

Or start with Calculator

Start with the official Calculator app, then shape its keypad, conversions, and history around your work.

Learn more

Start with the calculations you repeat

Describe the math you reach for every week. Moldable can keep everyday and scientific calculations, conversions, and their history together in one local app.

Customize Calculator for my home renovation projects:
- Add quick inputs for room length, width, and ceiling height
- Calculate floor area, paint coverage, and a 12% material buffer
- Keep feet, inches, metres, and currency conversions close at hand
- Label saved calculations by room

Make the result useful

Ask for the inputs, labels, and shortcuts that turn an answer into a repeatable workflow instead of another number to copy elsewhere.

Compare options

Let me compare three material options side by side, including tax and waste allowance

Save a template

Let me save this set of calculations as a reusable room estimate

Keep a trustworthy history

Calculator stores your calculations in the active Moldable workspace. Search past expressions, reopen a result, or clear the history whenever you want.

Ready to build your own?

Download Moldable and start creating apps that work exactly the way you want.

Download Moldable