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Best Cacio Apps

248+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated August 2026

Every iPhone needs a few good cacio apps. We benchmark 248+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Cacio Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1CASIO WATCHESCASIO WATCHESFree4.7★ (19K)NoNoSep 2026
2G-SHOCK ConnectedG-SHOCK ConnectedFree4.8★ (13K)NoNoSep 2026
3Scientific Calculator fx-991Scientific Calculator fx-991Free4.5★ (403)YesYesSep 2026
4G-SHOCK MOVEG-SHOCK MOVEFree3.8★ (835)NoNoSep 2026
5CASIO WATCH+CASIO WATCH+Free2.9★ (44)NoNoSep 2026
6fifth(フィフス)fifth(フィフス)Free—NoNoMay 2026
7CASIO MUSIC SPACECASIO MUSIC SPACEFree4.1★ (104)NoNoSep 2026
8Scientific Calculator Plus 991Scientific Calculator Plus 991Free4.7★ (12K)YesYesSep 2026

Top Picks for Cacio

CASIO WATCHES#1

CASIO WATCHES by CASIO COMPUTER CO., LTD.

CASIO Bluetooth watch app
Editor's Choice
🌟 Lifestyle
4.7😐(19K ratings)
Free
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
  • 🤔 Confusing and cluttered interface
  • 🔋 Inconsistent battery life reporting
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
  • ⏰ Accurate time keeping

Room to Improve

  • 🐛 Connectivity issues
  • 🔋 Battery drain problems
  • 📅 Inaccurate activity date tracking
  • 🗺️ Poor mapping and navigation features
  • 🤔 Confusing or limited functionality
Scientific Calculator fx-991#3

Scientific Calculator fx-991 by Dinh Phuc

Step-by-step Math Solver
Worth Considering
📚 Education
4.5(403 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

FAQ about Cacio

What are the best cacio apps for iPhone?
CASIO WATCHES tops our cacio apps ranking as of August 2026, with a 4.7-star average from 19K App Store ratings, and it's free to download.
Yes — 20 of the top cacio apps we rank are free to download, including CASIO WATCHES and G-SHOCK Connected.
CASIO WATCHES has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 248+ cacio apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
The app connects to compatible CASIO watches via Bluetooth to provide enhanced features. Users can adjust watch settings like time and world time, track daily activities such as steps and calories burned, access exclusive content related to G-SHOCK and other CASIO brands, and even customize and order their own G-SHOCK models.
Key features include Bluetooth connectivity for watch management, time and world time adjustments, activity monitoring (steps, calories, heart rate), access to exclusive G-SHOCK content and brand history, a badge collection system for step goals, and the ability to customize and order personal G-SHOCK watches.

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