Your guiding session, right on your wrist.
An imaging session means walking back to the laptop every few minutes just to check whether guiding is still holding. GuideWatch connects to NINA or directly to PHD2 over your local Wi-Fi and puts the guiding graph, RMS error and connection status on your Apple Watch instead.
Built for Apple Watch, for anyone guiding with NINA or PHD2
GuideWatch is a focused, read-only companion to your guider - NINA's Advanced API or PHD2's Event Server. It shows you what's happening on your watch, so you don't have to keep checking your laptop to find out.
RA/Dec error trends updating in real time, with correction ticks and dither markers, just like the graph inside PHD2.
RA, Dec and total RMS at a glance. Optional haptic alert when guiding error crosses a threshold you set in Settings.
One watch face slot that shows total RMS and guiding state while a session is live, then swaps to tonight's moon phase and how much of it is lit when you're not guiding.
Know instantly if guiding has dropped out or the rig has gone quiet. After a Wi-Fi drop, older chart data is shown dimmed until fresh steps arrive.
Connects directly to your NINA or PHD2 machine over Wi-Fi. No internet, no cloud, no account.
In Settings, pick NINA (port 1888) or PHD2 (port 4400), enter the host IP, and tap Connect. GuideWatch remembers the source and port separately.
The app starts in simulation so you can explore the UI before connecting to a live rig. Long-press the chart to toggle it on or off quickly.
GuideWatch is a monitor, not a controller - it never sends commands to NINA, PHD2, or your imaging rig.