# Sidereal Time — user reviews

> 12 indexed App Store user reviews of Sidereal Time by Milan Battelino, rated 2.89/5 from 9 ratings.

- Source: https://appshunter.io/ios/app/sidereal-time/id360770914/reviews
- App overview in markdown: https://appshunter.io/ios/app/sidereal-time/id360770914.md
- Rating breakdown: 5★ 2 · 4★ 1 · 3★ 3 · 2★ 0 · 1★ 3

## Most critical reviews (10 lowest-rated)

### 1/5 — I have a vpn. App would not work. No mechanism to manually enter location.

*2021-01-07, version 1.7*

I have a vpn. App would not work. No mechanism to manually enter location.

### 1/5 — No luck

*2015-11-05, version 1.6*

Apparently the download failed. I have OS X Yosemite 10.10.5 which I just learned does not support this app. Should not be offered in iTunes store. Regret wasting time with this.

### 1/5 — Unable to set.

*2014-08-03, version 1.6*

I just got this app and I cannot find any settings. I am only getting two clocks one for Greenwich Mean Time and one for Universal with no ability to get my local sidereal time. Am I missing something?

### 3/5 — crashes in ios 14

*2020-11-10, version 1.7*

fails to launch

### 3/5 — Accurate calculation, but no night mode

*2019-11-28, version 1.7*

Straight-forward app for displaying times useful for astronomers, such as UTC and LAST, and does so correctly to better than 1 second accuracy!

Unfortunately, this suffers from a major problem: I cannot find a setting to display as a night-vision safe dim red, making this useless as a visual astronomy observation clock.

### 3/5 — Nice app

*2018-03-21, version 1.7*

Needs an alarm to alert when is your own sidereal time.

### 4/5 — Nice App

*2011-07-01, version 1.6*

This seems to be a nice app. Simple, pleasing design, nice colors. But needs an alarm clock for sidereal time and a countdown clock without an alarm.

### 4/5 — nice

*2010-07-02, version 0*

Great for positioning of classical telescopes with setting circles.  Would be 5 stars if showed just sidereal time when iPhone is in horizontal mode so observer can see it from across the dome.

### 5/5 — Very Nice

*2012-03-14, version 1.6*

Great App!!!

### 5/5 — Ntp won't stay locked on

*2011-04-06, version 1.6*

Would be nice if you could lock to selected Ntp server

## Most praised reviews (2 highest-rated)

### 5/5 — Works great!

*2010-08-12, version 0*

Very simple and a great value!

### 5/5 — Simple and effective

*2010-05-07, version 0*

This straightforward app lets you use the GPS in the iPhone to set longitude and then displays local sidereal time.  Perfect for setting right ascension circles on a telescope in polar alignment.

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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 2026-06-10.*