TempusLocusLux vs Arucocca
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Arucocca
This app offers a unique timeline-based approach to planning and journaling, focusing on upcoming events and personal feelings. It allows users to log their emotions before and after plans, creating a personal diary of experiences. Designed for those overwhelmed by traditional calendars, it provides a calm and focused way to manage life's events.
- Timeline view instead of calendar grid
- Feeling stamps for plans
- After-plan logging with notes and photos
- Diary creation from logs
- Gentle notifications
- iCloud sync
- Data export
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Just one plan can weigh on you until the day arrives. A calendar packed with plans can leave you feeling like there's no room to breathe. Arucocca is a plan-and-journal app for people who would rather not manage life in a calendar grid. ■ A timeline, not a calendar grid Arucocca doesn't treat plans as blocks that fill a calendar grid. They appear as waypoints along a single timeline leading into the future. You mainly see today and what's coming up next. No need to carry every future plan at once — just pass through them one at a time. The space between plans isn't time taken from you. It's room that belongs to you. ■ Add how you feel about a plan When you create a plan, add how you honestly feel about it with a stamp: Excited / Ready / Neutral / Nervous / Gloomy No need to force positivity — pick what's true right now. You can change it as many times as you like. ■ When it's over, leave a quick log Pick a stamp for how it went, jot a quick note, or add photos. ■ Your logs become a diary The stamps, quick notes, and photos you save after plans build into a diary of those moments. “I was dreading it, but I'm glad I went.” Looking back, you can see how you felt before a plan and how it actually went. ■ Made for people who… ・Feel a single appointment can ruin the whole day before it starts ・Feel overwhelmed by month-view calendars ・Haven't been able to stick with planner apps ・Find long-form diaries hard to keep, but still want to save a quick note ・Want to keep the next plan in sight so it doesn't slip their mind ・Want to save how concerts, livestreams, and other anticipated events felt, along with photos ・Want a private place for how they feel before and after plans ■ Features ・A curved timeline flowing into the future ・Feeling stamps for upcoming plans (5 types) ・Custom feeling stamps made from photos you choose or take (1 set on Free) ・After-plan logs (stamp, note, photos) ・Plans without a time, all-day plans, multi-day plans ・Repeating plans (edit or skip a single occurrence) ・Gentle notifications (upcoming plans, an evening reminder to log) ・Light organizing with tags ・Collapse days to keep the view calm ・Import plans from Apple Calendar ・iCloud sync across devices ・Export all your data, photos included, for free ■ Arucocca Premium The essentials — creating plans, logging, looking back — are free. Premium unlocks: ・Look back at your full history beyond the free 60-day window ・See every day in Daily, including days without plans ・Save log photos with no app-side count limit (Free: up to 30) ・Change the footprints on your timeline (dog, cat, birdie) ・Exclusive themes (Mono White and Mono Black) ・Extra app icons ・No app-side limit on custom feeling stamp sets Free includes one custom feeling stamp set. Premium removes Arucocca's set-count limit; the number you can store still depends on available device and iCloud storage. Images used for feeling stamps do not count toward the free plan's 30-photo limit for logs. If Premium ends, the custom set currently in use on that device remains available. Other sets are not deleted: you can still view or permanently delete them, and they continue to appear in past plans and logs. Applying or editing extra sets stays locked until Premium is restored. Plans: ・Monthly (7-day free trial) ・Yearly (14-day free trial) ・Lifetime (one-time purchase) Prices are shown in the app. Subscriptions are billed to your Apple Account and renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel them in iOS Settings after purchase. Terms of Service: https://ojthon-dev.com/company/arucocca/terms-of-service Privacy Policy: https://ojthon-dev.com/company/arucocca/privacy-policy
Screenshots
Verdict
The clearest difference is ads: Arucocca at none against TempusLocusLux's shown. Arucocca also leads on update cadence (weekly vs monthly). On price, in-app purchases, device support and iOS requirement 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. TempusLocusLux sells 3 one-off in-app purchases and Arucocca sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
TempusLocusLux ships an update monthly, Arucocca weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | TempusLocusLux | Arucocca |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| Update frequency | Monthly | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.6 | 18.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | YUTAKA MIMURA | SHIN SUGITANI |
In-app purchases
TempusLocusLux
- TempusLocusLux Pro (Lifetime)$0.99
- Support Development (Small)$0.99
- Support Development (Large)$9.99
Arucocca
- Premium (Monthly)7 Days trial$2.991 Month
- Premium (Yearly)14 Days trial$19.991 Year
- Premium (Lifetime)$59.99








