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 441–460 of 1,000 ranked alternatives.
Decibel calculator
Dominique Brice
Direct addition and subtraction of dB.
The app performs direct addition or subtraction of decibel (dB) levels. It converts sound levels to a linear scale using an antilog function for calculations.
RPN Calculus
Thomas Braun
Scientific RPN calculator for iPad.
The app performs calculations with up to 15 digits of precision and supports a number range from -1E127 to 1E127. It includes a database of over 120 scientific constants that users can extend.
Solve
Pomegranate Apps LLC
A calculator for every need.
The app offers four distinct calculator tabs, each with a unique color. It allows users to perform calculations, plot graphs, and solve equations without clearing previous results.
Usako Calc
Tatsuo Sugama
Usako writes calculations on paper.
Usako Calc is a calculator application featuring the character Usako. Usako writes on paper to perform addition, subtraction, multiplication, and division of decimal and negative numbers.
GeoKalk
Nestor Cardozo
Calculate vectors, planes, and tensors.
The app calculates vectors and tensors, presenting entries and results in tables, a stereonet, and a Mohr circle. Entries can be read from text files or copy-pasted, and results can be exported as text and plots.
BuildersCalcsPro
Robert Thompson
Calculate, estimate, and plan projects
Calculate concrete quantities for floor slabs and foundations including aggregate, sand, and cement. Estimate materials for DIY projects and building trades. Include a VAT calculator and a brain-training game.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.