# iCaelum — Your Personal Sky Assistant

> Your Personal Sky Assistant (iPhone/iPad app by Luca Bellintani.)

- Source: https://appshunter.io/ios/app/icaelum/id6748221294 (this page in markdown: same URL + `.md`)
- Developer: [Luca Bellintani](https://appshunter.io/developer/1823664807)
- Category: Weather
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 10 MB
- Languages: American English
- Released: 2025-09-21
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/icaelum/id6748221294/reviews.md

## What is iCaelum?

Discover a smarter way to connect with the sky.
iCaelum combines weather forecasts, astronomical insights, real-time celestial tracking, and Sentinel—your personal health and safety monitoring tool—into one intuitive app designed for photographers, sailors, gardeners, travelers, and anyone who relies on the rhythms of the sun, moon, and atmosphere.

Key Features

Profiles
Tailor iCaelum to your needs with predefined profiles. Whether you want to capture golden hour, plan a sailing trip, or follow lunar cycles, the app highlights only the most relevant data for your activity.

Forecasts
Compare conditions from multiple trusted sources, including OpenWeatherMap, Yr, Open-Meteo, FMI, SMHI, and DMI. Get side-by-side predictions for temperature, precipitation, cloud cover, and visibility to make informed outdoor decisions.

Sentinel
Stay safe outdoors with real-time environmental monitoring. Sentinel tracks weather conditions, air quality, UV radiation, pollen levels, and natural disaster alerts—delivering safety indexes, live threshold notifications, and color-coded risk levels so you always know when to take action.

Trackers
Follow the live position of the sun and moon with real-time updates. Receive notifications for sunrise, sunset, moonrise, moonset, and twilight phases, and track how light and shadows evolve throughout the day.

Celestial Data
Access detailed almanacs with historical and future information on sun and moon phases, rise and set times, twilight periods, and seasonal variations. Generate reports for any date and location to plan long-term projects or explore celestial patterns.

Shadows
Calculate and visualize shadow lengths and directions for any object or location. A powerful tool for architects, urban planners, and designers who need to understand light and shade across seasons.

Winds
Explore global wind patterns with live flow maps. View speeds, directions, gusts, and upper-level streams in real time—an essential feature for aviation, sailing, and outdoor sports.

Rain Radar
Track approaching storms and precipitation with live rain radar reports from external providers, giving you real-time visual maps to anticipate sudden weather changes and plan with confidence.


## Version history (last 5 releases)

### 1.22 — 2026-08-18

Upcoming Eclipses has been rebuilt around a proper astronomical calculation.

• Eclipse times are now computed for your exact location rather than
  estimated, and the timeline always reads correctly from start through
  maximum to end. Before, an eclipse that set below the horizon partway
  through could show the same time for both maximum and end.

• Each eclipse card shows more of what is actually happening: the umbral
  phase of a lunar eclipse, the totality or annularity window of a solar
  one, the hours the Sun or Moon is above your horizon, and — when the
  deepest phase falls after it has set — the best moment you can still see.

• Descriptions now explain what the eclipse looks like from where you are,
  including when it is grander elsewhere along its track.

• Fixed the pollen peak countdown showing "in 0 days" for a peak due
  tomorrow.

### 1.21 — 2026-08-11

Upcoming Eclipses — corrected times

Eclipse times are now calculated on your device for your exact location,
rather than being fetched as worldwide times. Previously the app could show
when an eclipse begins somewhere on Earth instead of when it begins where
you are — a difference of several hours. For Copenhagen, the 12 August 2026
solar eclipse now correctly reads 19:10 to 20:52 instead of 15:35 to 17:55.

Eclipse cards also tell you more:
• How much of the Sun or Moon is covered, and how high it sits above your
  horizon at maximum
• The exact window of totality or annularity, with its duration, when your
  location falls inside the path
• A clear note when the Sun or Moon rises or sets partway through, so the
  listed start or end time is never mistaken for first or last contact
• Eclipses that are not visible from where you are now say so plainly

Forecasts — fixed disappearing data

Fixed a bug where returning to the app after a long time away could leave the
forecast scrolled off the top of the screen, with the data out of view until
you left the Forecasts screen and came back. Forecasts now also scroll as a
single smooth list.

### 1.20 — 2026-07-21

Beach Lover's SunbathingCalculator was seeded with a hardcoded Danish coordinate and its updateLocation(_:) was never called, so the Daily UV Index, current UV, optimal-tanning slots and the UV API fetch all ran at the Danish location regardless of the device's
actual position.

### 1.19 — 2026-06-04

Fixed several bugs and upgraded the external packages to the latest version.

### 1.18 — 2026-05-06

Fixed an AI glitch

## Apps similar to iCaelum

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Rudecast](https://appshunter.io/ios/app/rudecast/id6741375552) | — | Free | Weather |
| [The Damn Weather](https://appshunter.io/ios/app/the-damn-weather/id6761637304) | 5.0 (9) | Free | Weather |
| [rainfo](https://appshunter.io/ios/app/rainfo/id6741888073) | — | Free | Weather |
| [Weather for humans](https://appshunter.io/ios/app/weather-for-humans/id6758056677) | — | Free | Weather |
| [Weather: Retro Style](https://appshunter.io/ios/app/weather-retro-style/id6756349879) | 5.0 (1) | Free | Weather |
| [StoneForecast](https://appshunter.io/ios/app/stoneforecast/id6463064935) | — | Free | Weather |

## More apps by Luca Bellintani

- [guardiax](https://appshunter.io/ios/app/guardiax/id6759808328)

All apps by Luca Bellintani: https://appshunter.io/developer/1823664807

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*