230+ iOS apps curated and reviewed
With an average user rating of 4.3★, the mgs 400 category is one of the App Store's strongest. Browse all 230+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | Yes | No | May 2026 |
| 2 |  | Free | 4.1★ (1.3K) | No | No | Jul 2026 |
| 3 |  | Free | 4.6★ (83K) | Yes | No | Aug 2026 |
| 4 |  | Free | 4.5★ (4.7K) | No | No | Aug 2026 |
| 5 |  | Free | 4.6★ (1.1K) | No | No | Aug 2026 |
| 6 |  | Free | 4.8★ (52K) | Yes | No | Aug 2026 |
| 7 |  | Free | 3.2★ (364) | Yes | No | Jul 2026 |
| 8 |  | Free | 3.8★ (1.6K) | No | No | Aug 2026 |
This app connects to compatible gas detectors via Bluetooth, simplifying configuration, maintenance, and calibration. It replaces the need for specialized tools and training, ensuring compliance with safety standards.
This platform helps facility managers and service providers inspect critical building systems for compliance. It streamlines tracking, maintenance, and collaboration around safety codes and regulations, offering unparalleled validation and accuracy in inspection reporting.
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.
This smart air purifier offers intuitive control over your home's air quality, similar to a thermostat. It provides real-time monitoring of indoor and outdoor air, detailed insights into air quality factors, and customizable smart settings for optimal comfort and allergy relief.
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.
Manage your home's air quality with smart filter and purifier control. Receive personalized tips, alerts for filter replacement based on usage, and monitor outdoor air quality trends.
Remotely monitor temperature, humidity, and wetness/dryness in specific locations using sensors. Receive customizable email or text alerts when predefined thresholds are detected. Personalize your monitoring experience with location names and images.
Monitor and control your home or business security system remotely. Receive real-time notifications for events like alarms, door/window status, and system arming/disarming. Access event history and manage enabled devices for enhanced peace of mind.
This app offers intelligent surveillance with real-time audio and video monitoring. It provides timely alerts for home security issues and uses AI to identify humans, packages, and pets. Enjoy 24-hour protection for your family and property with a secure network connection.
Control and monitor your HVAC or grow environment with intelligent ventilation. Access advanced programming, view real-time environmental data, and receive customizable alerts for optimal control.
Control your Honeywell security system, smart home devices, and view live video feeds remotely. Receive instant alerts for events and manage user access. Requires a compatible Honeywell system and Bay Alarm Connect Remote Services subscription.
This app guides users through migrating their Flo by Moen devices to a new platform before the current app is deactivated. It provides a step-by-step process to ensure a smooth transition for water damage and leak protection devices.
Control your security system remotely, arming and disarming it as needed. Receive instant notifications for any alarm events, ensuring peace of mind and system awareness.
This app streamlines HVAC installation and service for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with comprehensive support for product information, warranty tracking, and locating resources.
This app connects to smart home safety devices, providing real-time alerts for smoke, CO, air quality, and water leaks. It offers features like Smart Hush, remote notifications to loved ones, and advanced indoor air quality monitoring through a subscription service.
Proactively maintain your HVAC system to prevent clogs, backups, and water damage. This smart device uses AI and custom schedules based on your climate to keep your AC running efficiently, saving you time and money.
Monitor indoor and outdoor air quality with real-time data on various pollutants, temperature, and humidity. Track personal exposure over time and control smart air purifiers remotely for a cleaner environment.
This app streamlines HVAC installation, service, and support for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with access to product information, warranty tracking, and dealer locators.
This app calculates HVAC/R system performance and aids in troubleshooting. It offers a wide selection of refrigerants and equipment profiling for various common systems.
Manage environmental, health, and safety aspects of your organization with this comprehensive cloud-based mobile application. It offers incident management, audits, corrective actions, and training tracking, with offline support for seamless data access.