Ukenummer vs Castella
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ukenummer
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Ukenummer shows what week it is – on the app icon, on your Home Screen and Lock Screen, in Control Center and on Apple Watch. THE WEEK NUMBER EVERYWHERE • The week number on the app icon, updated automatically every Monday • Widgets for the Home Screen and Lock Screen, also in StandBy • A month calendar with week numbers, like a Norwegian desk calendar • A control in Control Center • An Apple Watch app and complications WEEK BY WEEK • See the week's dates and which day of the week it is • Step between weeks, or jump to any date to find its week number • ISO 8601 week numbers, the standard used in Norway and much of Europe PUBLIC HOLIDAYS • All Norwegian public holidays for any year, with week numbers and countdowns • Add them to your calendar with one tap ON THIS DAY • Events, births and deaths from history for every day, from Wikipedia No ads, no account, and no data collected. Available in Norwegian and English.
Castella
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Castella — AI for real shopfloor casting Stop wasting shifts on guesswork. Castella helps foundry technicians and engineers create reliable production parameters for low-pressure die casting and other casting processes — fast, practical, and built for the shopfloor. Why Castella? No extra sensors or hardware required — works with the data you already have. No expensive, slow simulation software — get usable parameters in seconds. Designed by people who work on the floor: prioritizes simple, actionable settings (cooling start/sequence, phase pressures, phase times, total cycle time, region-based cooling, etc.). Reduce trial-and-error, scrap, and rework — increase first-run success. Core features Instant parameter proposals: enter your mold, material, and basic timing/geometry info and get a full parameter set (pressure phases, phase times, cooling schedule). Region-aware cooling: specify mold regions or feeder locations; cooling recommendations start from the farthest mold surface toward the feeder to optimize solidification. Safety & sanity checks: built-in validation warns about unrealistic inputs (e.g., implausible melt temperatures or impossible phase settings) so you don’t run a questionable recipe on the shopfloor. Expert feedback loop: accept, tweak, and save parameters — the system learns from your validated setups and improves over time. Collaborative contributions: share best practices within your team or company so knowledge stays on the floor, not just in one person’s head. Customizable templates: create and recall templates for common molds, alloys, and lines to speed setup. Clear, shopfloor-friendly UI: large touch targets, quick adjustments, and concise parameter summaries for operators. Who it’s for Foundry technicians and shop supervisors who need reliable parameters quickly. Production engineers who want to reduce setup time and variation. Small foundries that can’t afford high-cost simulation suites or extra instrumentation. How it helps you right now Replace “try and fail” cycles with data-backed suggestions. Cut the time between machine setup and a good casting. Reduce dependency on one “expert” by capturing team knowledge in the app. Save money by avoiding unnecessary sensors, third-party simulation licenses, and costly mistakes. Real shopfloor thinking Castella was built with shopfloor realities in mind: minimal inputs, immediate outputs, and clear warnings when a setting looks wrong. It emphasizes practical improvements you can implement today — not theoretical scenarios you’ll never test. Getting started Create a mold profile (or choose a template). Enter alloy, melt temp, and basic geometry/region info. Tap “Generate Parameters” and review the suggested cycle. Adjust, validate on one trial, then save the optimized recipe. Privacy & safety We respect your process data. You control whether recipes stay local to your device or are shared with team members. Castella includes safeguards to prevent obviously unsafe or implausible parameter sets. Join the new way to set up castings — faster setups, fewer rejects, and knowledge that stays on the floor. Download Castella and make your next cast the right one.
Screenshots
Verdict
The clearest difference is update cadence: Castella at weekly against Ukenummer's every 31 months. Castella also leads on iOS requirement (15.6 vs 18.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Ukenummer ships an update every 31 months, Castella weekly. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.
| Parameter | Ukenummer | Castella |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 31 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 9 MB |
| Age rating | 12+ | 4+ |
| Developer | Ibrahim Qraiqe | Serdar Percin |
In-app purchases
Ukenummer
No in-app purchases
Castella
No in-app purchases
Questions
Is Ukenummer free?
Is Castella free?
Do Ukenummer or Castella have ads?
Which is updated more often, Ukenummer or Castella?
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