Apps Like e-calcFree for iPhone and iPad
Calculate with scientific and engineering notation
Perform scientific and engineering calculations with support for notation like 1E-6 and multipliers such as p, n, u, m, k, M. Edit formulas, recalculate, and view calculation history.
e-calcFree screenshots
Ranked alternatives
Showing 821–840 of 1,000 ranked alternatives.

Unit Converter 單位換算
First Bird Design & Technology Limited
Convert units and currencies instantly
Convert units across categories like weight, length, and temperature. Support multi-country currency exchange with real-time updates. Include Asian measurement units such as tael and ping. Save preferred units for quick access.


Inseries - Calculator
Elemental Tools GmbH
Modern calculator for menu bar.
The app offers a modern calculator with a menu bar interface for quick access. It supports natural percentage calculations, calendar functions, and stores calculation history.

Decuple Calc
Hideaki Uchikoshi
Calculate with 10 built-in calculators
Display multiple calculators including scientific, financial, and unit conversion tools. Perform complex calculations, switch between modes, and save frequently used formulas. Share results via copy-paste or email.

A2Plus
antoni michel
Measure land area, perimeter, and distance
Measure land area, perimeter, and distance with precise calculations in feet, inches, yards, or feet. Display multiple plots on a map with intermediate distances. Overlay French land registry data for accurate plot measurements.

Water Timer Free
Piet Jonas
Calculate water usage and cost.
The app measures shower time to calculate water usage and cost. Users can save calculation history and email it for backup.








Big Number Calculator
Kunio Takeuchi
Calculate large numbers with precision
Perform arithmetic operations on large decimal numbers with up to 66000 digits. Add, subtract, multiply, and divide using a single format. Choose between Swift or Objective-C calculation engines.


Unit Ⅽonverter
Polymath Company Limited
Convert units with custom and combined measurements
Convert units of measurement with a calculator that handles multiple conversions at once. Input expressions for complex calculations. Support custom units and combined conversions.

How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.