225+ iOS apps curated and reviewed
The best koolcode apps on iPhone average 4.5★ across 225+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
This utility app provides quick, offline access to alarm and parameter codes for refrigeration controllers. It helps service technicians and engineers easily look up information without needing manuals or laptops.
This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.
This application helps HVAC technicians diagnose and repair systems quickly and accurately. It offers robust diagnostic tools to identify problems faster, leading to fewer callbacks and more satisfied customers. It supports various HVAC systems, making it an all-in-one solution for professionals.
Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.
This app provides Daikin service contractors with instant access to all technical and service information for Daikin products. It includes product specifications, manuals, error code troubleshooting, interactive field settings, and service videos. The app works online and offline, syncing data automatically for the latest updates.
This app allows you to unlock doors using your smartphone. It provides secure access control for buildings and facilities, enabling you to manage who enters and when. You can also grant and revoke access remotely.
Receive critical alerts and important community updates directly on your mobile device from public safety agencies and your employer or university. Stay informed about emergencies, crime advisories, and organizational announcements.
Manage your home's essential systems remotely. Control thermostats, locks, lights, and cameras from your smartphone. Create custom automations and device groups for simplified home management.
Manage your home or business security, video feeds, and smart devices remotely. Control your alarm system, view live camera footage, adjust thermostats, and manage door locks and garage doors for enhanced safety and convenience.
Control your home's climate remotely with a smart thermostat. Adjust temperature, set schedules, and receive alerts from anywhere. Integrates with popular smart home platforms for seamless control.
Control and monitor smart appliances from multiple brands in one app. Receive notifications, update software, and personalize settings. Get expert help and track energy usage.
Scan any QR code or barcode to access online information, create and share custom QR codes for various purposes, and manage inventory with a business scanner mode. Supports numerous code formats and offers iCloud synchronization for scan history.
Remotely monitor and control your Daikin, Amana, and Goodman heating and cooling systems from anywhere. Manage multiple locations, adjust settings, and receive important system notifications and energy usage insights.
Easily scan various QR codes and barcodes to access detailed product information, data cards, and scan history. Organize your scans with folders and export data to CSV. Offers unlimited scans and ad-free experience with a PRO subscription.
This app allows you to remotely control your smart air care devices. Set schedules and adjust settings to create your ideal home climate from anywhere.
Control your smart air conditioner remotely for comfort, efficiency, and safety. Customize sleep settings and schedule automatic operation. This app connects to smart Wi-Fi modules and cloud services for enhanced air quality management.
This tool quickly determines refrigerant data, including properties, safety groups, GWP, and ODP. It offers intuitive temperature-to-pressure conversion and supports both metric and imperial units. Access detailed information and links to online resources for over 100 refrigerants.
This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.
Instantly scan and create QR codes and barcodes with this powerful toolkit. It offers fast, reliable scanning even in challenging conditions and allows for the generation of custom codes for various data types. Enjoy a private and secure experience with features like history logging and batch scanning.
Easily scan and generate QR codes and barcodes for various purposes. Access product information from online stores, create codes for URLs or business cards, and manage your scan history. Offers a streamlined experience for all your code scanning needs.