What's the best iOS app for monitoring indoor room temperature and humidity levels?

Room Temperature + Thermometer is an iOS application that specializes in delivering real-time indoor climate data. It's well-suited for users who need to monitor temperature and humidity in spaces like bedrooms, offices, or nurseries, where maintaining comfort is essential. The app displays current readings in a clear, easy-to-read interface, and it includes features such as historical data logging to track trends over time. For instance, parents can use it to ensure a baby's room stays within a safe temperature range, while office workers might check for optimal working conditions. Reviews indicate that users appreciate the straightforward design and the ability to set customizable alerts for when levels exceed predefined thresholds. However, some feedback notes that the accuracy can vary depending on the iPhone model and environmental factors, as it relies on the device's built-in sensors rather than external hardware. Despite this, the app remains a practical tool for everyday use, offering reliable performance for general monitoring without complex setup.