# LSTclock vs Custom Word Clock

The clearest difference is review sentiment: Custom Word Clock at 100% against LSTclock's 55%. Custom Word Clock also leads on rating (5.0 vs 3.8) and update cadence (every 2 weeks vs every 2 months). LSTclock's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and iOS requirement there is nothing between them.

Both are free to download. Custom Word Clock sells 1 one-off in-app purchase. LSTclock asks for nothing beyond the download.

Custom Word Clock holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 10 and 4 respectively. Written reviews point the same way: 55% of LSTclock's written reviews are positive against 100% of Custom Word Clock's.

LSTclock ships an update every 2 months, Custom Word Clock every 2 weeks. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | LSTclock | Custom Word Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (10 ratings)](https://appshunter.io/ios/app/lstclock-sidereal-time-clock/id1510148631/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/custom-word-clock-texttime/id6449908609/reviews)** |
| Number of ratings | **10** | 4 |
| Positive reviews | 54.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 8 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Sawada](https://appshunter.io/developer/1510148630) | [Daniel Gauthier](https://appshunter.io/developer/1563807345) |

## 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


### Custom Word Clock

[App page](https://appshunter.io/ios/app/custom-word-clock-texttime/id6449908609)

This app offers a unique way to tell time using words instead of numbers. Customize phrases, colors, and fonts to create a personalized word-based clock widget for your device's home or lock screen.

**Highlights:** Displays time in words, Customizable phrases, Widget for home/lock screen, Adjustable text size, Background color options, Custom prefix and suffix

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super Customization | $2.99 | one-time |


## Frequently asked questions

### Is LSTclock free?

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

### Is Custom Word Clock free?

Custom Word Clock is free to download, with in-app purchases available.

### Which has better reviews, LSTclock or Custom Word Clock?

Custom Word Clock is rated higher. LSTclock averages 3.8 out of 5 from 10 ratings, while Custom Word Clock averages 5.0 from 4 ratings.

### Do LSTclock or Custom Word Clock have ads?

Custom Word Clock shows ads; LSTclock does not.

### Which is updated more often, LSTclock or Custom Word Clock?

LSTclock ships an update every 2 months, and Custom Word Clock every 2 weeks. Most recently, LSTclock was updated on September 9, 2026 and Custom Word Clock on September 22, 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.*