Which iOS app works best with a health-tracking ring that doesn't require a monthly subscription?

RingConn is the official iOS application for the RingConn smart ring, designed specifically for users who want comprehensive health insights without recurring fees. It excels by providing a centralized dashboard for all the data collected by the ring, including detailed sleep stage breakdowns, continuous heart rate monitoring, and skin temperature trends. The app is particularly useful for spotting deviations from personal baselines, which can indicate illness or heightened stress. For instance, users have reported the app flagging potential illness, such as COVID-19, by highlighting unusual temperature spikes. The interface explains health metrics in an accessible way, and consistent firmware updates have expanded features like exercise tracking. However, some users note the app lacks a low-battery alert for the ring itself, which can lead to data gaps, and manual editing of sleep intervals is not currently possible. Despite these minor software limitations, the app's core functionality—delivering actionable health data without a subscription—makes it a compelling choice in the wearable ecosystem.