Apps Like UnitStack for iPhone and iPad
Ranked alternatives
Showing 201–220 of 1,000 ranked alternatives.


jCalc – Scientific Calculator
Jon Ericksen
Calculate fractions and decimals instantly
Solve mathematical problems with fraction, decimal, and equation input. Display results in decimal, rational, , or trigonometric formats. Support up to 16 decimal places for precise calculations.


Ductulator - Duct Sizing
Wassim Murr
Size ducts by friction rate or velocity
Calculate sizes for rectangular and circular ducts by inputting maximum friction rate or velocity. Switch between calculation methods by tapping values. Convert between I-P and S-I units using a toggle switch. Export results for reference.



Varigate
Canadian Casing Accessories Inc.
Calculate casing sizes and pressures
Calculate casing sizes, weights, and hydrostatic pressure with unit conversions between imperial and metric systems. Switch units instantly. Perform pressure calculations for oil and gas applications. Access accurate data for field and office use.

Home Builder Pocket Reference
Calculated Industries, Inc.
Access construction guides and calculators
Provides construction information with over 1,500 illustrations, 100 guides on energy-efficient building, and 30 calculators. Users can access topics like construction safety, woodworking methods, concrete placement, and project planning.


PCalc Lite
TLA Systems Ltd.
Calculate with advanced scientific functions
Perform complex calculations with support for hexadecimal, octal, and binary. Use RPN mode and multi-line display. Access unit conversions, constants, and scientific notation. View a paper tape and use multiple undo/redo functions.




Unit Converter, 50+ Calculator
Loopbots Technology
Convert units, calculate values, compare results
Convert units across multiple categories including length, weight, temperature, and more. Input values and select units for instant conversion. View all results on one screen. Calculate complex formulas with built-in functions.



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