# LSTclock vs ScopeWizard

The clearest difference is rating: ScopeWizard at 5.0 against LSTclock's 3.8. LSTclock's advantage is update cadence (every 2 months vs every 25 months) and ratings volume (10 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScopeWizard holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: LSTclock has 10 ratings behind it against 1, so its average is the more settled of the two.

LSTclock ships an update every 2 months, ScopeWizard every 25 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | LSTclock | ScopeWizard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (10 ratings)](https://appshunter.io/ios/app/lstclock-sidereal-time-clock/id1510148631/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scopewizard/id1614476586/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 25 months |
| Monetization | Free | Free |
| Size | 22 MB | 4 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Sawada](https://appshunter.io/developer/1510148630) | [Richard Wright](https://appshunter.io/developer/297344959) |

## What reviewers say

### LSTclock

[App page](https://appshunter.io/ios/app/lstclock-sidereal-time-clock/id1510148631)

This utility app displays local sidereal time for registered locations on iOS, iPadOS, and watchOS. It can also calculate sidereal time and Julian Date for any date and time, and sync locations between devices.

**Highlights:** Local sidereal time display, Julian Date calculation, Supports multiple registered locations, Location sync between iPhone and Apple Watch, Date and time specific calculations

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### ScopeWizard

[App page](https://appshunter.io/ios/app/scopewizard/id1614476586)

This app simplifies telescope, eyepiece, and camera calculations with a unified database of equipment. Easily mix and match your gear or input custom values for precise specifications.

**Highlights:** Unified formula database, Equipment database, Mix and match gear, Custom value input, Telescope specifications calculation

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is LSTclock free?

LSTclock is free to download, with no in-app purchases.

### Is ScopeWizard free?

ScopeWizard is free to download, with no in-app purchases.

### Which has better reviews, LSTclock or ScopeWizard?

ScopeWizard is rated higher. LSTclock averages 3.8 out of 5 from 10 ratings, while ScopeWizard averages 5.0 from 1 ratings.

### Do LSTclock or ScopeWizard have ads?

Neither LSTclock nor ScopeWizard shows ads.

### Which is updated more often, LSTclock or ScopeWizard?

LSTclock ships an update every 2 months, and ScopeWizard every 25 months. Most recently, LSTclock was updated on November 3, 2026 and ScopeWizard on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*