LSTclock vs Easy File Locker
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).
Easy File Locker
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1. Create encrypted files to encrypt videos or pictures into encrypted files in gfx format. 2. Playing an encrypted file in gfx format. 3. Preventing Screenshots While Playing Encrypted video and image Files.
Screenshots
Verdict
The clearest difference is price: LSTclock at Free against Easy File Locker's $1.99. Easy File Locker's advantage is update cadence (monthly vs every 2 months) and iOS requirement (15.0 vs 17.0). 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; Easy File Locker costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LSTclock ships an update every 2 months, Easy File Locker monthly. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.
| Parameter | LSTclock | Easy File Locker |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 3.8 (10 ratings) — better | — |
| Positive reviews | 54.5% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Tsuyoshi Sawada | 茂华 何 |
In-app purchases
LSTclock
No in-app purchases
Easy File Locker
No in-app purchases
Questions
Is LSTclock free?
Is Easy File Locker free?
Do LSTclock or Easy File Locker have ads?
Which is updated more often, LSTclock or Easy File Locker?
Other comparisons
