GuideWatch icon

GuideWatch

Your NINA guiding session, right on your wrist.

Running NINA for an imaging session means walking back to the laptop every few minutes just to check whether guiding is still holding. GuideWatch connects to NINA over your local Wi-Fi network and puts the guiding graph, RMS error and connection status on your Apple Watch instead.

Coming soon on theApp Store

Built for Apple Watch, designed for astrophotographers running NINA

GuideWatch running on an Apple Watch Ultra, showing a live RA/Dec guiding graph with RMS error stats for RA, Dec and Total.

Check on guiding without leaving the eyepiece

GuideWatch is a focused, read-only companion to NINA's Advanced API - it shows you what's happening on your watch, so you don't have to keep checking your laptop to find out.

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Live guiding graph

RA/Dec error trends updating in real time, just like the graph inside PHD2.

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RMS & guiding stats

The numbers that matter, at a glance, without unlocking a laptop. Haptic alerts on bad guiding, if required.

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Watch face complication

Add Guide RMS to any watch face and see your guiding error and status without even opening the app.

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Connection status

Know instantly if guiding has dropped out or NINA has gone quiet.

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Local network only

Connects directly to your NINA instance over Wi-Fi - no internet, no cloud, no account.

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Simple setup

Enter your NINA machine's IP address and port once; GuideWatch remembers it.

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Simulation mode

Explore the app and its guiding display before you ever connect it to a live session.

What you'll need

GuideWatch is a monitor, not a controller - it never sends commands to NINA or your imaging rig.

  • NINA (Nighttime Imaging 'N' Astronomy) running on a Mac, PC, or mini-PC on the same local network as your Apple Watch/iPhone.
  • NINA's Advanced API plugin installed and enabled, so GuideWatch can read live guiding data.
  • An Apple Watch - GuideWatch runs independently on-wrist and does not require you to keep your iPhone nearby once connected to Wi-Fi.