Calcbot is a simple and beautifully designed calculator for your iPhone, iPod touch and iPad. You’ll never open the built-in Calculator app again.



lwty.org is described as 'Worksheets or practice exercises, calculators & answer sheets to engage the grade school students to learn, practice, test & verify the answers themselves to measure the progress of their own' and is a Calculator in the education & reference category. There are more than 50 alternatives to lwty.org, not only websites but also apps for a variety of platforms, including Android, Windows, Mac, iPhone and iPad apps. The best lwty.org alternative is SpeedCrunch, which is both free and Open Source. Other great sites and apps similar to lwty.org are Qalculate!, Numi, Soulver and Google Calculator.
Calcbot is a simple and beautifully designed calculator for your iPhone, iPod touch and iPad. You’ll never open the built-in Calculator app again.



NoteCalc is a handy calculator trying to bring the advantages of Soulver to the web.

NoteCalc is the most popular Self-Hosted alternative to lwty.org.
With MyScript Calculator, perform mathematical operations naturally using your handwriting.




CalcTape is a revolutionary new kind of pocket calculator. With CalcTape, also extensive calculations remain clearly structured. CalcTape makes the arithmetic process visible - you can generate intermediate results and subsequently correct or change all numbers and operations.




Calculator is a basic calculator application made by Apple Inc. and bundled with its macOS, iOS, and watchOS operating systems. It has three modes: basic, scientific, and programmer. The basic mode includes a number pad, buttons for adding, subtracting, multiplying, and...




handyCalc is a powerful calculator with automatic suggestion and solving which makes it easier to learn and use.



A kickass, open-source calculator that lets you do calculations and unit conversions naturally, with features like:



Calzy is a beautiful modern calculator for your everyday use. It helps you perform your day to day mathematical calculation in a more elegant way.



Sicyon is an all-in-one scientific calculator for every student or professor, researcher or developer - everybody doing physics or chemistry / science or engineering using formulas and tables of constants.




Programmable scientific calculator which has more than 150 mathematical functions and all of them return as many digits as you need. It can calculate with real numbers, complex numbers, fractions, vectors, matrices. Commands if, goto and print can be used to create scripts.


HEXelon MAX is a science calculator. It solves math expressions like: Sin(Pi)-Root(-8;3)+3. Exchange rates table and currency converter are update from Internet by one click. Units converter makes easier to convert various units,14 categories of units: length, temperature...


