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 501–520 of 1,000 ranked alternatives.

Time-Calc
Kazuyuki Saito
Calculate flight log time easily.
The app calculates time using hours and minutes. It performs addition and subtraction for flight log calculations.



Calc-50
David Smith
Calculate with high-precision math functions
Perform complex calculations with high-precision math functions including trigonometric, hyperbolic, and special functions. Calculate derivatives, integrals, and roots. Program custom functions and store equations.

The Shelly Company Calculator
The Shelly Company
Calculate paving and building estimates
Calculate paving and building project costs using four tools: aggregate, asphalt, concrete column, and concrete flatwork. Input dimensions like length, width, and thickness to get estimates. Export results for reference.





Pipe Working Pressure Calc
Tan Chia Ling
Calculate , thickness, and diameter
Calculate fluid , wall thickness, and outside diameter using Barlow's Formula. Input values in various units and copy results to other apps. Includes formulas for reference and supports up to 16 decimal places.



Civil Engineering Calculators
V PUGAZHENTHI
Calculate and convert units
& Converters provides tools for structural analysis, unit conversion, and formula-based calculations. Users can compute shear capacity, slenderness ratio, compressive stress, bending stress, and safety factors.


STAR-SEAL® Contractor Resource
Mowbol, LLC.
Access product info, calculators, and locate distributors
Access product information, technical data sheets, and MSDS/SDS documents for ® sealcoating products. Use calculators to estimate material needs. Locate manufacturing plants and distributors.

Wireline-Calcs
Vadim Fattakhov
Calculate tension, track depth, determine pressure balance,
Calculate maximum safe tension, determine wellhead pressure balance, and find keyseat location. Compute cable elongation and pull limits at depth. Adjust lengths for temperature changes.

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