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InfiniLink - The official iOS companion app for InfiniTime

This iOS application allows you to interact with your PineTime smartwatch running InfiniTime (and perhaps other watches/OSes, pending testing).

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Discover and connect to nearby InfiniTime devices
Set time and date immediately after connection
Retrieve battery level, heart rate, and step data
Chart persistence, with filters for the last hour, day, and week
Control Apple Music with InfiniTime's music controls
Integration with Apple HealthKit
Weather fetch (using the NWS API and a secondary fallback on WeatherAPI) and push (using InfiniTime 1.14's Simple Weather Service)
Uploading of external resource packages
Check for and download InfiniTime firmware updates with the GitHub API, and send them to the watch (Manual updates can be completed with DFU zip files downloaded from InfiniTime's GitHub Releases Page)

InfiniTime's navigation app—there is currently no API in Swift to access current directions unless the route is started from inside the app, which may not be practical for most users.
Phone notifications and system-wide music controls—requires implementation of Apple Media Service (AMS) and Apple Notification Center Service (ANCS) in InfiniTime.