# Nightwatch: Clear Sky Alerts — Know when the sky is clear

> Know when the sky is clear (iPhone/iPad app by Richard Sutcliffe.)

- Source: https://appshunter.io/ios/app/nightwatch-clear-sky-alerts/id6816390602 (this page in markdown: same URL + `.md`)
- Developer: [Richard Sutcliffe](https://appshunter.io/developer/6816390604)
- Category: Weather, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 64 MB
- Languages: American English
- Released: 2026-10-20
- Data updated: 2026-11-03

## What is Nightwatch?

Nightwatch tells you whether tonight is worth setting up the telescope, and speaks up when it is. When tonight looks clear for long enough, it sends a heads-up before sunset, then a nudge just before the clear spell begins. If the forecast turns, it tells you.

Open it to see a sky score, the clear window, cloud by hour, darkness, the Moon, seeing, wind, dew risk and transparency, and the best targets for your telescope's field of view tonight.

• Two forecasts compared: Apple Weather, with Open-Meteo as a second opinion, and 7Timer for seeing
• Targets chosen for your telescope, with "How to shoot this" on every target: filter, exposure and frames
• Tonight's plan: your favourites in the order of their best time
• Darker skies nearby, scored for tonight
• Your own horizon: mark what blocks your sky, or measure it from a photo
• Aurora alerts for your site, wherever you observe from
• Tonight's events: the Moon passing in front of a star, comets and the space station
• Small, medium and large Home Screen widgets, and a Lock Screen card when a clear window opens
• Spotlight and Shortcuts actions, and on iOS 27 Siri search for any target
• A red night mode that keeps your eyes dark-adapted
• Shares your sites and settings with the Nightwatch Mac app through iCloud

No accounts, no advertising and no tracking. Nightwatch is open source.

## Is Nightwatch safe?

Not enough ratings yet to assess Nightwatch.

## Is Nightwatch legit?

Nightwatch: Clear Sky Alerts has limited verification signals. The AppsHunter Legitimacy Score for Nightwatch is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-31

No release notes.

## More apps by Richard Sutcliffe

- [Elijah's Halloween Quest](https://appshunter.io/ios/app/elijahs-halloween-quest/id6829270491)
- [Elijah Saves Christmas](https://appshunter.io/ios/app/elijah-saves-christmas/id6829496048)

All apps by Richard Sutcliffe: https://appshunter.io/developer/6816390604

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-03.*