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Best Ring Size Calculator App

0+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated June 2026

If you already know Calculator for iPad!, this is the deeper bench. 0+ ring size calculator app apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Top Picks for Ring Size Calculator App

Calculator for iPad!#1

Calculator for iPad! by 7th Gear

Basic & Scientific Calculator
Editor's Choice
🔧 Utilities
4.7😊(60K ratings)
Free
Calculator for iPad! screenshot 1
Calculator for iPad! screenshot 2
Calculator for iPad! screenshot 3
Calculator for iPad! screenshot 4

Quickly crunch numbers with our user-friendly iPad calculator app that offers basic and scientific functions. Download now for accurate calculations on the go!

What We Love

  • 📐 Versatile calculator with basic and scientific modes
  • 📝 Useful note-taking and calculation history features
  • 🎨 Customizable color schemes
  • 💻 Works well on both iPad and iPhone

Room to Improve

  • 💰 Ads can be intrusive in free version
  • 🔒 Lack of transparency around in-app purchases
  • 🔍 Difficulty finding and accessing premium features
Calculator ##2

Calculator # by Incpt.Mobis

Scientific Calculator
Strong Contender
🔧 Utilities
4.6😐(36K ratings)
FreeAdsIn-App Purchases
Calculator # screenshot 1
Calculator # screenshot 2
Calculator # screenshot 3
Calculator # screenshot 4
Calculator # screenshot 5
Calculator # screenshot 6

Calculate complex mathematical equations effortlessly with this intuitive app. Simplify your calculations on the go with advanced features like graph plotting and equation solving. Download now to supercharge your math skills!

What We Love

  • 👍 Easy to use
  • 🚀 Powerful functionality
  • 💡 Helpful for math classes
  • ⭐ Great for students

Room to Improve

  • 🔍 Confusing interface after update
  • 📢 Too many intrusive ads
  • 💰 Paywall for advanced features
Calculator·#3

Calculator· by Tim O's Studios, LLC

Big Basic Calculator
Worth Considering
🔧 Utilities
4.9😊(33K ratings)
FreeAdsIn-App Purchases
Calculator· screenshot 1
Calculator· screenshot 2
Calculator· screenshot 3
Calculator· screenshot 4
Calculator· screenshot 5

A simple and intuitive calculator app with essential functions like addition, subtraction, multiplication, and more. Customize with multiple color schemes, copy results easily, and use additional functions on iPad. Experience the perfect balance of features and simplicity today!

What We Love

  • 👍 Simple and easy to use
  • 🚀 Quick and responsive
  • 💡 Percentage function works well
  • 👍 Large, clear buttons

Room to Improve

  • 🔋 Frequent ads can be distracting
  • 🐛 Occasional crashes or freezes
  • 🔒 Lack of customization options

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5
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Ring Sizer・Tape Measure・Metrix
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Digital Measuring & AR Ruler
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The application allows users to transform their smartphones into a digital measuring tape, offering real-time measurements, imperial and metric unit support, and the ability to save and share measurements. It also features augmented reality (AR) technology to scan rooms and automatically calculate dimensions. Users can try the app and subscribe to a premium version to access its full set of features.

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Digits Tape Calculator
Digits Tape Calculator
Digits Tape Calculator
The calculator for humans
$1.99

Try Digits Tape Calculator, the calculator designed for humans. With a unique correctable tape feature, spreadsheet-like editing, and calculator simplicity, it's perfect for tracking expenses and budgets. Get organized on-the-go with Digits 3 for iOS.

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Mila's Ring Sizer & Converter
Mila's Ring Sizer & Converter
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8
Calculator Pro Lite
Calculator Pro Lite
Calculator Pro Lite
Best Calculator
Free

A versatile and customizable calculator app offering basic and scientific functions, memory features, history tape, and various layout options. Users can personalize their color themes, access scientific functions, and easily perform complex calculations, all with ad-supported convenience. Explore the app now for a powerful and user-friendly calculation experience!

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Ring Sizer: Measuring Tool App
Ring Sizer: Measuring Tool App
Ring Sizer: Measuring Tool App
Measure Your Size: Ruler, Tape
Free

This app helps you easily determine your ring size using a user-friendly measuring tool, ensuring a perfect fit for your ring purchase. Download the app to say goodbye to sizing uncertainties and find your ideal ring size with ease and accuracy.

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The Ring Size App™ by Hitched
The Ring Size App™ by Hitched
The Ring Size App™ by Hitched
by Radius Technologies
Free

Discover an effortless way to find your ring size with a free and user-friendly app. Say goodbye to traditional sizing methods - download now to get your ring size in minutes!

🌟 Lifestyle
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11
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

A color calculator app that helps users find complementary color schemes for design projects. Simply input a base color and let the app generate harmonious color combinations for your projects. Try it now to elevate your design choices!

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12
Calculator 3.0
Calculator 3.0
Calculator 3.0
Calculations Simplified
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A versatile and user-friendly calculator application for Apple devices, featuring themes, haptic feedback, tip calculation, unit conversion, and more. Simplify your calculations with Calculator 3.0 - available now for free on Apple Watch, iPhone, iPad, and iMessage!

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13
ClevCalc - Calculator
ClevCalc - Calculator
ClevCalc - Calculator
All-In-One Calculator
Free

A comprehensive all-in-one calculator app with features like scientific calculator, unit converter, currency converter, percentage calculator, and more for everyday use. It provides a wide range of calculation tools from basic arithmetic to complex conversions and financial calculations. Try it out now for convenient and efficient calculations!

📊 Productivity
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14
Calculator +
Calculator +
Calculator +
Scientific Calc Plus Fraction
Free

Experience the award-winning calculator app for iPad and iPhone, offering a free basic and scientific calculator with an elegant design, simple usability, and beautiful interface. Calculate with ease and precision today!

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15
Calculator ∞
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The Best Scientific Calculator
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A top-rated scientific calculator app on iOS devices offering advanced math functions with a user-friendly interface for users of all levels. Features include step-by-step solutions, math photo solving, and handwriting recognition. Enhance your calculations with this versatile tool.

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16
PCalc Lite
PCalc Lite
PCalc Lite
The Best Calculator
Free

PCalc Lite is the ideal calculator app for scientists, engineers, students, and programmers offering RPN mode, multi-line display, unit conversions, constants, and more. Try it for free on your iPad and upgrade for additional features or themes. Also available on Apple Watch for on-the-go calculations.

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17
Ring Sizer Tool
Ring Sizer Tool
Ring Sizer Tool
Ring Size & Finger Measure
Free

This application helps you accurately determine your ring size with just a few simple steps, ensuring a perfect fit every time. Say goodbye to guessing and ensure your next ring purchase is just right!

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18
Ring Sizer - Ring Size Measure
Ring Sizer - Ring Size Measure
Ring Sizer - Ring Size Measure
Ring Sizing Finger Measurement
Free

Get a perfect fit every time with our ring sizer app, offering accurate measurements in metric and imperial units, with visual guides and support for global sizing standards. Download now and find your ideal ring size with ease.

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(162)
19
Ring Sizer - Size Measure App
Ring Sizer - Size Measure App
Ring Sizer - Size Measure App
Sizing Measurement Tool
Free

A convenient ring sizing app that accurately measures your finger for the perfect ring fit. Suitable for both casual users and professionals, with support for different measurement systems and compatibility with various devices including Apple Watch. Download now for precise measurements without the guesswork.

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20
Ring Sizer.
Ring Sizer.
Ring Sizer.
Get Your Ring Size Instantly
Free

Discover your perfect ring size instantly with an intuitive app utilizing your smartphone's camera for accurate measurements. Say goodbye to resizing hassles and always choose the right size for your rings. Unlock premium features for a seamless experience. Privacy Policy:first link, Terms of Use:second link.

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