Numeric Notes is described as '– is not just a totally new way to count, but also possibility to keep and share calculations on your Mac' and is a Calculator in the Business & Commerce category. There are more than 50 alternatives to Numeric Notes for a variety of platforms, including Windows, Android, Mac, Online / Web-based and iPad. The best alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Numeric Notes are Qalculate! (Free, Open Source), Numi (Freemium), Windows Calculator (Free, Open Source) and OpalCalc (Freemium).
Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).
A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.
OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows natural language in the sum and multi-line support so you can go back and adjust your previous calculations on the fly.
Soulver is a smart notepad with a built-in calculator. It gives instant answers to any calculations it finds in your text. It's a better way to work stuff out than with a traditional calculator, and a more lightweight tool for quick calculations than a spreadsheet.