Run an exam room from one screen: set a heading, pick a 45, 60, 90 or 120 minute length or a custom one, and start. The big clock counts the time left, shows the start and end time and a progress bar of the whole exam, and warms up at 30, 15 and 5 minutes left before it says Time is up. Keep a list of room notices and add your own, and switch to full screen so the whole hall can read it.
Keep a billiard or table-tennis match on time: a game clock that counts up, two big scores with quick plus buttons, an optional shot clock drawn as a ring that restarts on every point and sounds a horn when it reaches zero, a set counter and an undo for the last point. Finish the match to save the score and share it, and keep every finished match in a history with a short recap.
Turn any paper size into millimetres, inches or pixels: pick from the ISO A and B series or common US sizes, choose portrait or landscape and a resolution, and see the exact pixel size at 72, 150, 300 or 600 dpi. A nested outline shows how each A size is half of the one before it, and the fit line tells you how many pieces come out of a larger sheet. Copy, share or save the size and keep a history with a recap of what you use most. Everything stays on your phone.
Turn any ring measurement into a size every shop understands. Type a circumference in millimetres, a diameter, or a US, UK, EU or JP size and the converter shows all of them at once, with a ring drawn to scale and saved to your phone. Open the full size chart, follow the string or paper measuring guide, or match a ring you own against the on-screen measurer. Remember your size once and reuse it in a tap, then copy or share the result.
Convert shoe sizes between EU, US, UK and centimetres for men, women and kids. Type a size or your measured foot length and every other size appears at once on a live scale, keep your own size saved on the phone, copy a plain size list and open a full size chart with a measure guide and fit tips. Everything works offline.
Count the days between any two dates in one glance: pick a start and an end day on the drawn calendar, then see the exact number of days, a weeks/months/years breakdown and how many working days are left. Flip the include-end-date switch to count the last day too, or switch to working days to skip Saturdays and Sundays. A timeline bar marks where today sits between the two dates, and a future end date shows a live countdown. Use the today button or the 30 and 90 day ranges, add or subtract days from any date, and share the result as plain text. Everything stays on your phone.