Calculate gratuity with customizable tip rate presets and round-up/round-down options. View pre-tax calculations and select themes for personalized settings. List all options for quick reference.
by Yong Gyun Kim★ 4.714 ratingsUtilitiesFreeData updated 2026-09-16
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.
The app calculates illuminance level and light power density. It is designed for lighting designers, architects, interior designers, and engineers, offering a clear layout and quick usage.
The app calculates the weight and price of various steel types including construction, form, volume, and tubes. It saves calculation history for easy access.
The app calculates restaurant or bar tip and per person amounts. It figures out the check total including the tip, in percent and dollar amount, and per person amount.
Perform calculations in standard, scientific, and programmer modes. Calculate totals and taxes. Switch between portrait and landscape layouts. Support multitasking and slide-over on iPad. No ads.
Track scores for games and card games with real-time calculations. Save history and view totals after each round. Add custom rules and export results as PDF or text. Share scores directly with players.
Perform arithmetic with mixed and decimals, including bracket operations. View results as , mixed numbers, or decimals. Scroll through a paper tape to review calculations, select, and copy entries. Email results for record-keeping.
The app calculates monthly payments and provides yearly amortization tables. Users can view payment plans by year, with options for cumulative interest calculation annually, quarterly, and half-yearly.