Perfboard
Soft Dorothy LLC
Electronics hobbyist utility and reference tool.
The app provides a reference and utility for electronics hobbyists. It includes calculators for resistors and capacitors, along with tools for L.E.D.s and Ohm's law.
Apps Like Tolerance Helper for iPhone and iPad
Calculate tolerances for holes and shafts
Calculate dimensions with ISO standard tolerances for holes and shafts. Input size and class to determine limits. Reference complete tables for standard intervals. Support for both hole and shaft designations.
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.
ISO Fits
Trelleborg Sealing Solutions Germany GmbH
Calculate and tolerances
Calculate by inputting nominal diameters and selecting tolerance classes for bore and shaft. Display tolerances for common ISO classes. Switch between metric and inch units. View tolerance classes in charts.
Springulator Spring Calculator
Newcomb Spring Corp
Calculate forces and stress diagrams
Calculate parameters for compression, extension, and torsion springs. Input dimensions or load data to determine stress, rate, and deflection. Generate reference diagrams and stress charts for design verification.
iAttenuation
Black Cat Systems
Calculate attenuator resistor values easily.
The app calculates resistor values for various attenuator networks including Tee, Pi, H, O, and Minimum Loss Pad. It adjusts resistor values to match standard tolerance values.
Engineering Cookbook
Loren Cook Company
Mechanical designers reference guide for information.
The app offers a reference guide for mechanical designers. It provides access to information on fan basics, system design, duct design, motors and drives, heating and refrigeration, and formulas.
Aerospace Groove Selector
Trelleborg Sealing Solutions Germany GmbH
Aerospace hydraulic groove standards selector.
The app covers five SAE Aerospace groove standards for hydraulic systems. It displays groove dimensions, tolerances, and indicates suitability for dynamic and static seals.
Resistor Color Band Calculator
Aryaman Sharda
Calculate values by bands
Determine values by selecting bands. Calculate resistance, tolerance, and temperature coefficients. View detailed specifications and compare ratings.
Piping DataBase - Schedule
Radin Alcira
Look up pipe dimensions and standards
Engineers and designers can access standard dimensions for welded and seamless wrought steel pipes. View outside diameter, nominal wall thickness, and plain end mass. Search by pipe type and material. Export data in multiple formats.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.