Best Cacio Apps

189+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated May 2026

Every iPhone needs a few good cacio apps. We benchmark 189+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Cacio

CASIO WATCHES#1

CASIO WATCHES by CASIO COMPUTER CO., LTD.

CASIO Bluetooth watch app
Editor's Choice
🌟 Lifestyle
4.7😐(17K ratings)
FreeAds
CASIO WATCHES screenshot 1
CASIO WATCHES screenshot 2
CASIO WATCHES screenshot 3
CASIO WATCHES screenshot 4
CASIO WATCHES screenshot 5

This app connects to compatible CASIO watches via Bluetooth to offer enhanced functionality. Manage watch settings, track daily activities, access exclusive brand content, and even customize your own watch.

What We Love

  • 👍 Reliable and accurate time keeping
  • 🚀 Seamless Bluetooth connectivity
  • 💡 Useful fitness tracking features
  • 👍 Durable and well-built watches

Room to Improve

  • 🐛 Buggy and unreliable app
  • 🔒 Invasive data collection
  • 💤 Lack of offline functionality
G-SHOCK Connected#2

G-SHOCK Connected by CASIO COMPUTER CO., LTD.

Strong Contender
🔧 Utilities
4.8😐(13K ratings)
Free
G-SHOCK Connected screenshot 1
G-SHOCK Connected screenshot 2

This app connects your CASIO watch to your iPhone via Bluetooth for enhanced functionality. It allows for simplified watch operations and access to various Mobile Link features. Note: This app's functionality is transferring to the CASIO WATCHES app.

What We Love

  • 👍 Easy to use app
  • 🚀 Convenient Bluetooth connectivity
  • 💪 Durable and reliable watch
  • 📊 Useful fitness tracking features

Room to Improve

  • 🐛 Connectivity issues
  • 🔋 Battery drain problems
  • 📅 Inaccurate activity date tracking
Scientific Calculator fx-991#3

Scientific Calculator fx-991 by Dinh Phuc

Step-by-step Math Solver
Worth Considering
📚 Education
4.5(344 ratings)
FreeAdsIn-App Purchases
Scientific Calculator fx-991 screenshot 1
Scientific Calculator fx-991 screenshot 2
Scientific Calculator fx-991 screenshot 3
Scientific Calculator fx-991 screenshot 4
Scientific Calculator fx-991 screenshot 5
Scientific Calculator fx-991 screenshot 6

This app provides a powerful scientific calculator with step-by-step solutions for equations, advanced functions, and graphing capabilities. It includes a formula library and unit converter, inspired by a popular Casio model, to aid in learning and problem-solving for math and science subjects.

More Cacio apps to explore

4
Scientific Calculator Plus 991
Scientific Calculator Plus 991
Scientific Calculator Plus 991
Designed for math calculator
Free

This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.

Natural display inputGraphing moduleFormula library
📚 Education
(12K)
free with in-app purchases
5
CASIO MUSIC SPACE
CASIO MUSIC SPACE
CASIO MUSIC SPACE
by CASIO COMPUTER CO., LTD.
Free

This app enhances the experience of playing Casio digital pianos and keyboards. It offers features like a visual piano roll, score viewer, music player, and a live concert simulator to make learning and playing music more engaging and enjoyable for all skill levels.

Visual piano roll for easy note identificationScore viewer with playback and annotationPlay along with favorite songs
🎵 Music
(95)
free
6
G-SHOCK MOVE
G-SHOCK MOVE
G-SHOCK MOVE
by CASIO COMPUTER CO., LTD.
Free

Connect your G-SHOCK watch to your smartphone to access enhanced mobile functions. Manage watch settings, create training plans, and analyze your health and activity data. Receive smartphone notifications directly on your wrist.

Bluetooth watch connectionTime adjustment and settingCreate training plans
🔧 Utilities
(829)
free
7
CASIO WATCH+
CASIO WATCH+
CASIO WATCH+
by CASIO COMPUTER CO., LTD.
Free

Connect your compatible CASIO watch to your iPhone via Bluetooth to unlock enhanced Mobile Link functions. This application simplifies watch operations by allowing you to control them from your phone screen, enriching your overall experience.

Bluetooth v4.0 connectivityMobile Link functionsSimplified watch operations
🔧 Utilities
(44)
free
8
ClassWiz Calc App QR
ClassWiz Calc App QR
ClassWiz Calc App QR
by CASIO COMPUTER CO., LTD.
Free

This app brings the functionality of Casio's ClassWiz scientific calculators to your smartphone or tablet. Perform advanced calculations, manage spreadsheets, and generate graphs by connecting to Casio's online services. It mirrors the operation of physical calculators and uses QR codes for seamless integration.

Scientific calculator functionsStatistical calculationsSpreadsheet management
📚 Education
(6)
free with in-app purchases
9
CASIO ClassPad
CASIO ClassPad
CASIO ClassPad
by CASIO COMPUTER CO., LTD.
Free

Perform complex calculations, graph functions, and utilize a computer algebra system for mathematical exploration. This app offers a suite of tools for math and science learning, including dynamic visualizations and advanced functions. It's designed to enhance mathematical understanding for students and educators.

Complex calculationsGraphing functionsComputer Algebra System (CAS)
📚 Education
(11)
subscription
10
EDIFICE Connected
EDIFICE Connected
EDIFICE Connected
by CASIO COMPUTER CO., LTD.
Free

This app connects your Bluetooth-enabled CASIO watch to your iPhone, enabling various Mobile Link functions. It simplifies watch operations through your phone and is transitioning to the CASIO WATCHES app.

Bluetooth watch connectivityMobile Link functionsSimplified watch operations
🔧 Utilities
(581)
free
11
Chordana Play
Chordana Play
Chordana Play
by CASIO COMPUTER CO., LTD.
Free

Learn your favorite songs with interactive music scores and piano roll notation. Practice at your own pace with adjustable tempo, key transposition, and a scoring system. Supports built-in songs, imported MIDI files, and connection to compatible keyboards.

Interactive music score and piano rollAdjustable tempo and key transpositionAB repeat function for practice
🎵 Music
(66)
free
12
HiPER Scientific Calculator
HiPER Scientific Calculator
HiPER Scientific Calculator
by Jindrich Houska
Free

This app offers advanced scientific calculation capabilities, including symbolic algebra, equation solving, and calculus functions. It supports high precision, natural expression input, and various display formats. Users can also visualize functions and equations with 2D and 3D graphing.

Symbolic algebraIntegrals and derivativesHigh precision calculations
🔧 Utilities
(237)
free with in-app purchases
13
Simple Calculator.
Simple Calculator.
Simple Calculator.
Basic Casio-style calculator
Free

A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.

Real-world logic, no forced order of operationsRunning total displayCost, sell, margin calculations
🔧 Utilities
(1.4K)
ad-supported
14
CASIO fx-CG500
CASIO fx-CG500
CASIO fx-CG500
by CASIO COMPUTER CO., LTD.
Free

This app provides advanced mathematical and scientific calculation tools, including graphing and a computer algebra system. It offers a user interface similar to the handheld fx-CG500, with access to various applications like eActivity, Spreadsheet, Geometry, and Physium. It's designed to enhance learning for both new and experienced users.

Complex calculationsGraph drawingComputer Algebra System (CAS)
📚 Education
(9)
free with in-app purchases
15
Calculator₊
Calculator₊
Calculator₊
Basic, Scientific, Plus Calc
Free

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.

Basic and scientific calculationsUnit and currency converterAI-powered math solver with photo recognition
🔧 Utilities
(1.7M)
free with in-app purchases
16
EXILIM Connect
EXILIM Connect
EXILIM Connect
by CASIO COMPUTER CO., LTD.
Free

Wirelessly connect your compatible digital camera to your iPhone or iPad. Remotely control camera settings, transfer photos, and view images directly on your mobile device. Easily share your captured moments with friends and family.

Remote camera operationImage transfer to mobileView camera images on phone
📷 Photo & Video
(8)
free
17
PRO TREK Connected
PRO TREK Connected
PRO TREK Connected
by CASIO COMPUTER CO., LTD.
Free

This app connects your compatible CASIO watch to your iPhone via Bluetooth. It enables various Mobile Link functions to enhance your watch experience and allows for simplified watch operations through your phone's screen. Data can be transferred to the new CASIO WATCHES app.

Bluetooth watch connectivityMobile Link functionsSimplified watch operations
🔧 Utilities
(346)
free
18
Calculator #
Calculator #
Calculator #
Scientific Calculator
Free

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

Math Photos SolverHandwriting RecognitionAI Math Problem Solver
🔧 Utilities
(36K)
free with in-app purchases
19
Piano ٞ
Piano ٞ
Piano ٞ
Piano Keyboard - Tap Tiles
Free

Learn and play piano with interactive rhythm games and a freestyle keyboard. Explore a vast library of songs across genres, record your creations, and share them with a global community. Offers multiple instrument sounds and progress tracking.

Interactive rhythm playFreestyle keyboard modeRecord and share music
🎵 Music
(167K)
freemium
20
Taculator 84 Graphing Calc
Taculator 84 Graphing Calc
Taculator 84 Graphing Calc
Statistics, Matrix + Graph
Free

This advanced calculator app offers comprehensive tools for high school and college students, covering everything from pre-algebra to calculus and statistics. It features high-resolution graphing, matrix operations, and detailed statistical analysis, all accessible through an intuitive interface.

Scientific and advanced math functionsHigh-resolution graphing and plottingMatrix operations and storage
📚 Education
(7.5K)
free with in-app purchases