SimpleClock vs TempusLocusLux
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SimpleClock
A customizable clock app designed for studying, offering a clean interface with no ads or charges. Personalize the background, font, and text color, and utilize built-in stopwatch and timer functions. Widgets are now available for enhanced convenience.
- Customizable clock appearance
- No ads or charges
- Stopwatch function
- Timer function
- Widget support
- Dark mode support
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Widgets are now available! Dark mode support, no ads, no charges. All functions are free of charge. - A simple clock that is perfect for studying! - You can change the background photo, font, and color of the text to customize the clock to your liking. - Stopwatch function and timer function! - Widgets* are now available! * To use the widgets, you need a device with iOS 14 or later or iPadOS 14 or later. -------------------------------------------- If you have any problems, please contact us using the support form below or "Help" in the app. https://support.reoapp.com/form Privacy Policy https://support.reoapp.com/clock/en Support email address support[at]reoapp.com *Please replace [at] with @ when sending email. --------------------------------------------
TempusLocusLux
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This app is not a clock that continuously displays time as numbers. Time generates a field of light, which is rendered across the entire screen. The light you see is not decorative. It is the structure generated from time itself. This app allows you to experience that very transformation as “time.” The design of the app is based on three concepts: • Tempus (time) • Locus (space & place) • Lux (light) Time is not something to be displayed; it is the origin from which a field emerges. From time, position is determined. From position, light appears. The field of light is in constant transformation, and no configuration ever repeats exactly. It is a “clock” that exists only in that singular moment. The date is not shown directly. However, the spatial arrangement of the minutes is determined by the current year, month, and day. This design expresses the irreversibility of time. Even if the same minute and the same hour occur, a different date will never reproduce the same structure. The field forms according to the unique conditions of that day. There is no return to the past. Time is mapped into space, and space is visualized as light. This app is not a device for reading time. It is a device for experiencing the field generated from time. The structure forming at this very moment exists only at this exact time. That is the present of this clock. –––––––––––––––––––––––––––––– Privacy Policy and Terms of Use TempusLocusLux provides a Privacy Policy and Terms of Use. Please refer to the following pages for details. Privacy Policy https://www.atlascope.idatabase.info/app/en/privacy.html Terms of Use https://www.atlascope.idatabase.info/app/en/terms.html
Screenshots
Verdict
The clearest difference is ads: SimpleClock at none against TempusLocusLux's shown. SimpleClock also leads on update cadence (every 2 weeks vs monthly) and iOS requirement (15.0 vs 18.6). On price, 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
Both are free to download. SimpleClock sells 3 one-off in-app purchases and TempusLocusLux sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SimpleClock ships an update every 2 weeks, TempusLocusLux monthly. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.
| Parameter | SimpleClock | TempusLocusLux |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 11 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Reo Shigeno | YUTAKA MIMURA |
In-app purchases
SimpleClock
- Cheer for the developer$0.49
- Cheer for the developer$2.99
- Cheer for the developer$5.99
TempusLocusLux
- TempusLocusLux Pro (Lifetime)$0.99
- Support Development (Small)$0.99
- Support Development (Large)$9.99









