LSTclock vs Scan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LSTclock
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.
- Local sidereal time display
- Julian Date calculation
- Supports multiple registered locations
- Location sync between iPhone and Apple Watch
- Date and time specific calculations
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LSTclock is an iOS/iPadOS/watchOS app that displays the local sidereal time (LST) at registered location(s). On iOS/iPadOS, it can also calculate LST and Julian Date for any date and time. The list of locations can be synced between iPhone and paired Apple Watch(es).
Scan
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Scan-ly is the fast, simple, and powerful way to turn your documents, receipts, notes, and invoices into clean, professional PDFs. With offline AI enhancement, automatic edge detection, and accurate text recognition, Scan-ly makes scanning effortless—anytime, anywhere.
Screenshots
Verdict
The clearest difference is price: LSTclock at Free against Scan's $0.99. Scan's advantage is update cadence (every 2 days vs every 2 months) and iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
LSTclock is free to download; Scan costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LSTclock ships an update every 2 months, Scan every 2 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | LSTclock | Scan |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.8 (10 ratings) — better | — |
| Positive reviews | 54.5% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Tsuyoshi Sawada | Petrus Arnoldus van Zyl |
In-app purchases
LSTclock
No in-app purchases
Scan
No in-app purchases
