Simple Calculator. vs Tsugitsugi Chain Timer

This is the calculator that gets it right—built for professionals, retailers, and anyone who needs fast, accurate math without the complexity. • Work smarter with real-world logic No forced order of operations—just like a classic pocket calculator with a running total. • Perfect for business use Easily handle cost, sell, and margin calculations. Add or subtract percentages in one step. • Clean, intuitive interface Large, labeled buttons and a crisp display make every calculation effortless. • Reliable and distraction-free Minimal ads, never intrusive—so you can stay focused, even in front of clients. Inspired by the Casio calculators you know and trust—modernized for your iPhone/ iPad. Download now and make everyday math faster, clearer, and smarter.

Tsugitsugi Chain Timer runs several countdowns as a chain: when A ends, B starts on its own. For cooking, studying, and workouts, you stop re-setting "the next five minutes" over and over. ■ When one ends, the next begins Line up steps into a chain and start it once. An alarm rings at the end of each step and the next step starts automatically. It keeps going with the app closed and the phone in your pocket. ■ Your Lock Screen shows what's running and when it ends Running chains live on the Lock Screen and in the Dynamic Island: the step name ("Cook noodles"), the time left, and the end time ("Ends 7:41 PM"), all in words, never just a color or an icon. ■ Rings until you stop it, even in Silent mode Alarms use AlarmKit in iOS 26. They ring through Silent mode and Focus, and they don't cut out until you stop them. Your music keeps playing. ■ Several chains at once Run the pasta chain and the oven chain side by side. There is no artificial limit on how many run at the same time. ■ Simple controls - Tap to start - Pause, resume, skip, cancel - Repeat a whole chain (e.g. Focus 25 min → Break 5 min × 4) - One-off quick timer - Per-step alert sounds (4 included) ■ No ads, everything free No feature limits, no counters. If you like the app, you can tip the developer from Settings (tips don't change any features). ■ Privacy The app never connects to the network. Your chains and timers stay on this iPhone and are never sent to the developer or anyone else. No tracking, no ads. Requires iOS 26.0 or later on iPhone (also runs on iPad).