Best Cdb Calculator Apps

212+ iOS apps curated and reviewed

4.6 avg rating

15 free apps

Updated June 2026

Digits Tape Calculator is the household name in CDB calculator, but it's far from the only option. We track 212+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Cdb Calculator

Digits Tape Calculator by Shift

The calculator for humans

Editor's Choice

🔧 Utilities

4.8😊(1.1K ratings)

$1.99In-App Purchases

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.

What We Love

🚀 Best tape calculator
👍 Intuitive and user-friendly interface
💡 Editable and commentable saved tapes
🚀 Resizes well on iPad

Room to Improve

🐛 Bug with iOS 26 where number pad doesn't return after adding comments
🐛 Slow to load and unresponsive on some devices
👎 Lack of iCloud sync between devices

Calculator ∞ by Incpt.Mobis

The Best Scientific Calculator

Strong Contender

📚 Education

4.7(6.2K ratings)

$5.99In-App Purchases

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.

ClevCalc - Calculator by Cleveni Inc.

All-In-One Calculator

Worth Considering

📊 Productivity

4.7😊(12K ratings)

FreeAdsIn-App Purchases

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!

What We Love

👍 Easy to use
🚀 Efficient calculations
💡 Versatile features (currency, unit conversions, etc.)
👍 Intuitive interface

Room to Improve

💰 Subscription model too expensive
🔍 Ads can be intrusive
🐛 Occasional UI issues (e.g. ads blocking functionality)

More Cdb Calculator apps to explore

Scientific Calculator Plus 991

Designed for math calculator

Free

A versatile scientific calculator app designed for math enthusiasts, offering features like natural display for textbook-like equations, symbolic and numeric modes, complex number calculations, calculus functions, statistical analysis, and unit conversion. With a premium upgrade option for additional advanced features and customization. Access the power of NCalc FX now!

📚 Education

(12K)

OneCalc: All-in-one Calculator

Calculates everything. Try it.

Free

A versatile calculator app for iPhone and iPad offering over 40 calculators and unit converters for finance, health, and more. Simplify your calculations with just one app today!

Discover the best hand calculator for all your basic math needs - addition, subtraction, multiplication, division, and more, with customizable features like recording and recalling past calculations and touch sound. Perfect for school children and anyone seeking a simple and efficient calculator solution!

🔧 Utilities

(3.4K)

Calculator - Simple & Basic

by The App Tower Inc.

Free

Access a user-friendly calculator offering more than 80 customizable themes. Crunch numbers effortlessly with style.

🔧 Utilities

(146K)

10bii Financial Calculator

Easy Financial Calculator

$7.99

A powerful and versatile financial calculator app with over 105 functions for various financial analysis needs, from loan payments to investment values. Perfect for beginners and professionals alike, offering easy-to-use features, intuitive display, and precise mathematics. Answer common financial questions effortlessly with 12 easy modes and visualize cash flows and statistical data with graphs for quick analysis and decision-making.

💰 Finance

(663)

BA Financial Calculator

BAII Plus Emulator

Free

This app, developed as a BAII Plus emulator, caters to CFA candidates and charterholders, offering identical functionality to the TI calculator with a user-friendly experience. For support, contact cfa.calculator@gmail.com.

💰 Finance

(2.9K)

Calculator--

by Horizon Business, Inc.

Free

🔧 Utilities

(910)

Big Button Calculator Pro Lite

Easy Basic Calculator

Free

Experience the ultimate iOS calculator with big buttons, dual-line display, 18 color themes, and multi-line input for complex equations. Includes convenient gestures like swipe to backspace and clear. Perfect for all your calculating needs!

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.

A fully customizable calculator app with basic and scientific functions, memory features, and a history tape. Design your own color theme, access scientific functions, and enjoy convenient gestures for a seamless calculation experience. Download now for efficient and personalized calculations on-the-go!

Experience a high precision calculator app that offers a user-friendly interface, supports multiple functionalities like undo, switching workspaces, Bluetooth keyboard compatibility, and more. Print and share your calculations with ease and precision for free!

🔧 Utilities

(268)

Panecal Scientific Calculator

For engineers and students

Free

A scientific calculator app designed for engineers and students, offering features like formula display, quick editing, memory functions, and various calculation modes. Improve accuracy and efficiency with easy formula navigation and editing tools. Explore advanced functions for different number systems and mathematical operations.

🔧 Utilities

(1.9K)

Calculator with History Tape

No Ads Calculator with Memory

Free

Access a user-friendly calculator app with a built-in archive of your calculations for easy reference. Enjoy an ad-free experience with customizable features for seamless calculations. Try it now for straightforward and efficient math operations.

📊 Productivity

(3.2K)

Feet and Inches Calculator

Perfect Construction Calc!

Free

Calculate measurements with ease using this construction calculator designed for quick and accurate results. Perfect for all your project needs – download now and simplify your work!

🔧 Utilities

(384)

Calculator%.

Simple, big screen and buttons

Free

A simple calculator application with a big display and buttons, designed for easy daily use. Perform basic calculations like addition, subtraction, multiplication, and division with a clear display format and intuitive design.

🔧 Utilities

(3.9K)

Simple Calculator.

Basic Casio-style calculator

Free

This app is a basic calculator with tax and business functions, designed for professionals and small business owners. It features 12 digits, tax calculation, percentage calculation, memory operations, grand total, square root, sign change, and more. Check it out for simple and efficient calculations on your iPhone/iPad.

A powerful calculator app for scientists, engineers, students, and programmers with features like RPN mode, multi-line display, unit conversions, constants, paper tape, undo/redo, and support for various calculation formats. Also available on Apple Watch for convenient wrist calculations. Try it now!

🔧 Utilities

(758)

Best Cdb Calculator Apps

Top Picks for Cdb Calculator

What We LoveHighlights summarized from real App Store user reviews

Room to ImproveCommon complaints summarized from real App Store user reviews

What We LoveHighlights summarized from real App Store user reviews

Room to ImproveCommon complaints summarized from real App Store user reviews

More Cdb Calculator apps to explore

Looking for something similar to CDB calculator?

What We Love

Room to Improve

What We Love

Room to Improve