Calc Plus vs Ringa

Calc Plus is a modern calculator designed to make everyday calculations faster, simpler, and more organized. Whether you’re working through a quick calculation, converting currencies, checking measurements, or keeping track of multiple calculations at once, Calc Plus gives you the tools you need in one clean and easy-to-use app. CALCULATE WITH EASE Get instant results as you type, so you can see your answer without needing to press equals every time. Calc Plus is designed to make everyday calculations feel quick and effortless. CURRENCY & UNIT CONVERTER Convert currencies and everyday units directly from the app. Quickly switch between values and get the information you need without jumping between different tools. MULTIPLE CALCULATION TABS Keep different calculations separate and organized with multiple tabs. Start a new calculation without losing what you were working on and easily switch between them whenever you need. CALCULATION HISTORY Never lose track of a calculation. Your history makes it easy to revisit previous calculations whenever you need them. MAKE IT YOURS Personalize Calc Plus to match your style. Choose from different themes, button styles, and app icons to create a calculator that feels uniquely yours. WHY CALC PLUS? • Calculator, currency converter, and unit converter in one app • Instant results as you type • Multiple tabs for better organization • Calculation history for easy reference • Custom themes and button styles • Alternative app icons • Clean, modern, and intuitive design From quick everyday calculations to conversions and more complex workflows, Calc Plus keeps everything simple, organized, and within reach. Calculate. Convert. Stay organized.

Find your ring size on your phone, with a ring you already own or with your finger, and any bank card. No sign-up: ring sizing and the full result are always free. HOW IT WORKS 1. Calibrate once. Lay a bank card on the screen and match one line to its edge. Ringa learns the true size of your screen. 2. Measure. Place a ring that fits you on the screen and fit the circle to its inner edge. Smaller and Larger buttons fine-tune it by a tenth of a millimeter. 3. Read your size. The inner diameter in mm and your size in every common system, side by side. Not sure what to do? Each step has a short animation that plays the first time, and How? shows it again. NO RING AT HAND Switch to With your finger. Lay the finger flat on the screen and mark the width at its root and at the knuckle. Ringa estimates your ring size to within one size and says so on the result. When you can, check it with a ring. ONE MEASUREMENT, EVERY SIZE SYSTEM US and Canada, UK and Australia (letters), Europe (circumference), Japan, Switzerland, India, Türkiye and inner diameter in mm. Handy when you shop from a jeweler abroad. HONEST BY DESIGN A phone screen is not a jeweler's mandrel. Ringa always shows the millimeters, says a ring measurement is accurate to about half a size, and suggests the larger size when you land between two. Tips cover the rest: measure in the evening, warm hands first, wide bands need half a size up. SIZES FOR THE PEOPLE YOU LOVE Save a result to yourself or to someone else and find it again in Settings under People. Planning a proposal or a gift? Borrow one of their rings for a minute, measure it and keep the size for the day you shop. Share the result with the jeweler in one tap. PRIVATE No account. Your calibration, people and sizes stay on your phone. 16 languages. JEWELRY PACK One optional purchase opens more true-size tools: bangle size; a solitaire diamond at true size on your own ring size, from 0.25 to 2 carats; for watches, band (lug) width, wrist and bracelet size with a paper strip, and your watch at true size on your wrist; and My stone, your birthstone and zodiac stone at true size on your finger. Ringa is free and supported by ads. At most one full-screen ad may appear after you confirm a measurement, before the result. There are no ads while you calibrate or measure, and the result is never locked. Optional: the Jewelry Pack, a one-time in-app purchase, with bangle sizes and no full-screen ads. You can restore the pack on your other devices with the same Apple ID.