Apps Like EngToolBox for iPhone and iPad
Learn, track, and secure notes
Multi-purpose calculators for basic math and advanced engineering functions. Track stress with a secure journal using Keychain security. Access all features offline. Store data locally with no cloud syncing. Set a PIN for journal access.
EngToolBox screenshots
Ranked alternatives
Showing 261–280 of 1,000 ranked alternatives.



Base Converter Simple
Pierluigi Solimena
Convert numbers between decimal, binary, hexadecimal,
Convert numbers between decimal, binary, hexadecimal, and octal systems. Input integers from 0 to 2^31-1. Perform conversions in both directions. Display results in selected number formats.

IB Math HL & SL
George Feretzakis
Learn with video lessons and calculators
Access video lessons and use multiple calculators and solvers for IB . Review topics for Higher Level, Standard Level, Applications and Interpretation, and Analysis and Approaches. Track progress with practice questions and exam-style problems.

Archimedes Calculator
Patrick Pijnappel
Pick formulas, calculate results
Solve equations and plot graphs with precision. Access a formula library to input and calculate formulas with automatic unit support. Find intersections, integrals, and derivatives through intuitive plotting features.


Photometrics
Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
Reference ARRI light fixture photometric data.
The app provides photometric data for ARRI light fixtures, including discontinued models and electronic ballasts. Users can access illuminance, beam angle, diameter, and light properties, with options for metric and imperial units.


M9 Scientific Calculator Graph
Himanshu Nag
Edit equations, functions, calculate measurements
Perform advanced calculations with formula editing and recalculation. Generate graphs for complex equations. Support for engineering and computations. Includes graphing capabilities for mathematical functions.






HotTub&Pool
Pixelwand Ltd
Chemical calculations for pool owners.
The app helps hot tub, spa, and pool owners calculate chemical doses for calcium, alkalinity, pH, sanitizer, and stabilizer. It also includes a water balancing feature to calculate the Langelier Saturation Index for system maintenance.


U Scientific calculator
EONSOFT
Edit equations, calculate functions, solve complex problems
Perform complex mathematical calculations including trigonometric functions, logarithms, and exponentials. Switch between radians and gradients. Edit equations and save results for future reference.

Nursing Stats
Catzcode LLC
Calculate nurse ratios, generate reports, email
Calculate daily staff percentages using built-in formulas. Generate reports for email or print. Ensure compliance with easy-to-use interface. View formulas at CatzCode.com.


Hex Calculator Pro
Nguyen Van Huu
Convert numbers between systems
Hexadecimal and binary calculators allow users to perform arithmetic and bitwise operations. Convert between number systems and view results in decimal, hexadecimal, and binary formats. Save and share calculation history.
How we rank alternatives
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