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★★★★★
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New: a Home button on every calculator and table, and a star to add any of them to your Home Screen. Your Home Screen now has a My Favorites section that you can edit: add, remove, and reorder your most-used tools. Also includes easier number entry, clearer search on phones, and a Reset button on each calculator.
Handy Calculations puts the everyday oilfield engineering math and reference data you reach for most into one fast, easy-to-read app. Calculators for common drilling and wellbore work, with clear inputs and instant results Reference tables you can scroll, sort, and filter, including large lookup tables Terms of Use (EULA): https://randyrwood-crypto.github.io/handycalcs/terms.html Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://randyrwood-crypto.github.io/handycalcs/privacy.html Built for phones and tablets, so it's usable in the field Works completely offline. No account, no sign-in, and no internet connection needed Collects no data. Nothing you enter ever leaves your device Always verify results that matter before relying on them for operational or safety decisions. Handy Calculations is a convenience reference and doesn't replace professional engineering judgment.