# Local Sidereal Time

> Local Sidereal Time

Canonical page: [https://chrome-stats.com/d/id1256725300](https://chrome-stats.com/d/id1256725300)

## Overview

- **ID:** `id1256725300`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Scott Spiller
- **Category:** Utilities
- **Rating:** 4.70 / 5 (1,061 ratings)
- **Version:** 4.2
- **Last updated:** 2026-05-01
- **First published:** 2017-07-20
- **Size:** 20 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/local-sidereal-time/id1256725300)
- **Website:** [https://sidereal.app](https://sidereal.app/)
- **Privacy policy:** [https://sidereal.app/privacy](https://sidereal.app/privacy)

## Description

Local Sidereal Time provides a **live LST clock** based on your location or any chosen place. Track the local sidereal time, generate the next 31 hits for your selected sidereal target, and search for cities with map support. The default target is **13:30 LST**, but you can customize it to track any local sidereal time.

On-device tools include **30 days of alerts**, **CSV exports**, and **calendar exports**. Enjoy home screen and lock screen widgets for a quick glance, night viewing modes, and map visibility controls. The app offers a trial with Pro unlocking continued access to advanced tools and planning features.

## Rankings

- #53,329 — Overall

## Review summary

Users praise Local Sidereal Time for being easy to use and for delivering accurate LST times, helpful reminders, and informative articles. The standout pros are its simplicity, useful pro features, and helpful pop-up alerts for planning. However, repeated concerns include alarms that don’t ring or trigger, inconsistent notification behavior (missing sounds, hidden alerts, or difficulty clearing), licensing/restoration problems after upgrading, and occasional stability issues (crashes or slow loading). Overall, when it works, it’s valuable, with strong developer responsiveness noted by some, but several reliability issues limit consistent use.

### Pros

- Easy to use and meets sidereal timing needs.
- Pro upgrade is worth it; I’m happy paying for pro features and the developer is responsive.
- Pop-up reminders and notifications are helpful for planning around 13:30 LST.
- Informative articles about sidereal time.

### Cons

- Alarm feature not working: alarms do not ring or trigger on devices, and notifications may fail.
- Pro upgrade/restore issues: purchasing the Pro version doesn’t always restore after reinstall, leading to licensing frustration.
- Notifications not reliably visible or audible: some alerts don’t appear, cannot be cleared, or are hard to locate.
- Stability and performance problems: occasional crashes and slow loading.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1256725300)