Interval Timer Sec+Sec vs Units

Simple free interval training timer application that alarm and vibration at the time specified in seconds. After the set time has elapsed, it counts the number of repetitions. Since it keeps the specified seconds setting, it is no need to set the seconds every time. The behavior in the background is limited. For High Intensity Interval Training (HIIT).

Units is a pocket tool for the numbers you keep looking up. Convert units and currency, run everyday calculations, check a formula or a constant, and do the sum on a calculator that stays out of the way. UNIT CONVERSION Pick a category and enter a number. Every unit in that category is converted at once, so you never have to choose what to convert to. • Seven categories: length, weight, temperature, volume, area, speed and currency. • Metric, imperial, US and traditional Chinese units: feet, pounds, Fahrenheit, gallons, jin, mu and more. • Look-alike units are listed separately, such as US and UK gallons, or tonnes and short tons. • Pin the units you use most, and tap any result to copy it. CURRENCY • 22 widely used currencies with rates updated daily. The last rates are kept for when you are offline, and the rate date is always shown. • Drag currencies into the order you want and hide the ones you don't need. • Rates are mid-market reference rates. Your bank or card rate will differ. CALCULATORS Fill in a few numbers and get the answer. Every field comes with a short note on what to enter. • Pensions: China urban employee pension, a stop-or-keep-contributing comparison, and Canada CPP + OAS + GIS. • Loans and savings: fixed-payment and fixed-principal loans, compound interest, annualized return. • Health and fitness: BMI, pace. • Spending and travel: discounts, unit price, tip and split, percent change, fuel cost, electricity cost. • Pension results can be shared as a clear one-page image, with age and income hidden. FORMULAS • More than 100 formulas across math, physics, chemistry, finance and economics, grouped by topic: triangles, electricity, solutions, interest and more. • Formulas are properly typeset, and the meaning of every symbol is listed underneath. • Search by name. Some formulas take your numbers directly. CONSTANTS 51 constants from math, physics, chemistry and astronomy, with units and a short note. Tap one to copy its value. CALCULATOR Pull up a half-height calculator from any screen and keep reading the formula above it. Brackets, percent, powers, roots, trig functions, logarithms, factorial and π, with the result shown as you type. ALSO • English and Simplified Chinese, switchable at any time in Settings. • No account, no personal data collected, no ads. Formulas and constants are provided for reference; check important calculations against an authoritative source. Pension and loan calculations are rough estimates based on published rules. They are not official figures and not financial or investment advice.