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 41–60 of 1,000 ranked alternatives.

Greysheet: Rare Coin Pricing
CDN Publishing, LLC
Look up prices and research
Access real-time data for U.S. coins, paper money, and modern China issues. Search for specific denominations and conditions. Compare prices across different markets. Download reports and export data in various formats.

Pipe Fittings
Radin Alcira
Reference tool for piping engineers and designers.
The app provides a mobile reference for factory-made wrought buttwelding fittings and forged fittings. It covers various types of elbows, tees, reducers, and caps in both US Customary and SI Units.

Tip Calculator‰
Tim O's Studios, LLC
Calculate tips simply and quickly.
The app provides basic tip calculations for dining out or when in a hurry. It offers simple and user-friendly functionality for quick calculations.

Machinist Pocket Pal
Wesley Pingleton
Calculate tolerances and dimensions
Provides calculators for speeds and feeds, milling, lathe, drilling, and trigonometry. Includes reference materials for machining formulas and tool performance optimization. Users can access essential engineering resources and calculations on-the-go.



Thermodynamics Calculator
V PUGAZHENTHI
Engineering calculations and reference tables.
The app provides 44 thermodynamics and heat-transfer calculators, along with reference tables. It allows users to solve for any variable and switch between SI and USCS units instantly.




Drill and Tap Tool - Thread Tapping & Through Hole
Chewy Applications Ltd.
Tap type, spin dials, find size
Calculate size for operations by selecting type, tap size, percentage depth of , clearance, and cutting or forming operation. Adjust settings via tap interface without typing.


Unit Converter: Mila's Tools
Scott DeSapio
Convert units across 16 categories
Convert units across 16 categories with instant results. Switch between metric, imperial, and other systems. Calculate conversions for length, weight, temperature, and more. Store frequently used values for quick access.




Beam Sections Profiles
Victor Bovio
Consult cross for global standards
Consult cross for American, European, Indian, Korean, and Australian standards. View profile dimensions and key properties. Calculate weight using standard materials. Export data to CSV for external use.
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