# Lagoon - Astronomy Companion — Your Night Sky Companion

> Your Night Sky Companion (iPhone/iPad app by Amelien BERNARD.)

- Source: https://appshunter.io/ios/app/lagoon-astronomy-companion/id6764630089 (this page in markdown: same URL + `.md`)
- Developer: [Amelien BERNARD](https://appshunter.io/developer/1700763068)
- Category: Reference, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 57 MB
- Languages: American English, French (France)
- Released: 2026-07-27
- Data updated: 2026-08-31
- User reviews in markdown: https://appshunter.io/ios/app/lagoon-astronomy-companion/id6764630089/reviews.md

## What is Lagoon?

Lagoon is the ultimate companion for amateur astronomers. Whether you're a beginner or an experienced observer, Lagoon helps you make the most of every clear night.

WHAT'S VISIBLE TONIGHT
Get a personalized list of observable objects based on your location, Bortle index, and current weather conditions. Objects are sorted by their optimal observation time during the night.

MESSIER & NGC CATALOGUE
Browse the complete Messier catalogue (110 objects) and the full NGC database. Filter by object type (nebula, galaxy, cluster…), magnitude, constellation, and apparent size. Each object includes a description, sky location map, current altitude, and best observation season.

OBSERVATION LOGBOOK
Log every session with date, location, observed objects, conditions (seeing, transparency, moon), equipment, free notes, sketches, and personal photos. Track your Messier progress with a visual grid and detailed statistics.

OBSERVATION SITES
Save your favorite spots — your backyard, a rural site, a mountain refuge. Get accurate Bortle index, real-time weather forecasts (cloud cover, seeing), and compare light pollution between your saved sites.

SESSION PLANNER
Know exactly when each object will be at its peak. Lunar calendar with phases, moonrise and moonset times. Set alerts when an object is about to reach its zenith.

WIDGETS
Quick-glance widgets for your home screen and lock screen: Bortle index, moon phase, tonight's top objects, and your observation window.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Lagoon Pro Monthly | $4.99 | per month |
| Lagoon Pro Annualy | $44.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lagoon Pro Lifetime | $69.99 | one-time |



## Version history (last 3 releases)

### 1.1.2 — 2026-08-19

Improvements and bug fixes for an even smoother experience. Thank you for your feedback and support!

### 1.1.1 — 2026-08-06

Fixed a minor display issue on the Moon and Live Session widgets

### 1.1 — 2026-07-27

No release notes.

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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 2026-08-31.*