ZakMachine: Percent Calculator

ZakMachine is your pocket calculator for the small sums of everyday life. Add or remove sales tax or VAT, work out percentages and discounts, find out what a road trip or your washing machine costs, count the days until a deadline or convert 70 °F to Celsius: open the tool, type a number and get your answer. If you work with code, timestamps, number bases, chmod and cron are in there too. No account. No ads. No tracking. ZakMachine works completely offline and collects no data. TEN FREE TOOLS • Tax calculator (VAT and sales tax) Convert amounts between including and excluding tax in both directions. Pick the Netherlands, Belgium, Germany, France or Switzerland with their VAT rates, or enter any custom rate, such as your local sales tax. Copy the result with one tap. • Percentage calculator What is 15% of 80? 12 is what percent of 60? By how much did a value go up or down? • Discount calculator Discounts as an amount or a percentage, including stacked discounts such as 20% off plus an extra 10%. Instantly see the final price, how much you save and the effective discount. Works with any currency. • Unit converter Length, volume, weight, temperature, speed, pressure and data. Gallons to liters, pounds to kilograms, °F to °C and psi to bar. • Gas cost What does a trip cost? Enter distance, fuel economy and price per gallon, round trips too. • Electricity cost What does a device cost per day, month and year? Enter watts, daily use and your price per kWh. • Date difference Days, weeks, months and years between two dates, including the number of workdays. • Password and token Strong passwords from 8 to 64 characters, without look-alike characters such as l, 1, O and 0. Also create a token (hex, Base64 or UUID) and get an estimate of how strong a password is. • Timestamp Turn a Unix timestamp into a date and back, with ISO 8601 and time zones. • Number bases Convert between binary, octal, decimal and hexadecimal, up to 64 bits. ZAKMACHINE PRO A one-time purchase, not a subscription. Pro gives you eleven more tools: • Margin & markup: profit, margin and markup from cost and selling price, or the selling price for a target margin • Savings: compound interest, your final amount or the monthly deposit for a savings goal • Loan: monthly payment, total interest and total to repay, with annuity or linear repayment • Break-even: how many units and how much revenue you need to cover your costs, with an optional profit target • Conversion rate: from visitors and conversions to the visitors you need for a goal • Hours & minutes: add and subtract times such as 1:30 or 90m, with the total as a decimal too • Download time: how long a file takes at your speed, and Mbps to MB/s • Inflation: what your money will be worth and what something will cost later • Character counter: characters, words, sentences and reading time, with a limit such as 160 or 280 characters • Chmod: tap file permissions and copy the chmod command • Cron: build a cron schedule and see the next run times • Extra options, such as comparing an old and a new device with payback time, and splitting trip costs • Your own favorites at the top, in the order you want • New Pro tools we add later, at no extra cost Pro works on all your devices and can be shared with Family Sharing. FAST AND THOUGHTFUL • Search in any language: "BTW" or "MwSt" also finds the VAT tool • Categories for Money, Everyday, Time, and Units & tech • Recently used tools at the top ALSO ON IPAD AND MAC One app for iPhone, iPad and Mac. On the Mac you get a sidebar and keyboard shortcuts: ⌘1 to ⌘9 open a tool and ⇧⌘C copies the result. PRIVACY FIRST ZakMachine needs no internet connection and collects nothing: no account, no analytics, no ads. The App Store privacy label says it too: Data Not Collected. The app only connects to the App Store when you make a purchase. Made in the Netherlands. Questions, feedback or an idea for a new tool? Get in touch via the support page.