# Deneb Astro Tool vs Astrian Light

The clearest difference is in-app purchases: Astrian Light at none against Deneb Astro Tool's 2. Astrian Light also leads on update cadence (daily vs every 8 days). Deneb Astro Tool's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Deneb Astro Tool sells 2 in-app purchases, starting at $3.99 per month. Astrian Light asks for nothing beyond the download.

Deneb Astro Tool ships an update every 8 days, Astrian Light daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | Deneb Astro Tool | Astrian Light |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/astrian-light/id6798375806/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Daily** |
| Monetization | — | Free |
| Size | 97 MB | 60 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Josep Guasch Sanchez](https://appshunter.io/developer/6787171923) | [Javier Linero](https://appshunter.io/developer/1814104966) |

## What reviewers say

### Deneb Astro Tool

[App page](https://appshunter.io/ios/app/deneb-astro-tool/id6787171921)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deneb Pro Monthly | $3.99 | per month |
| Deneb Pro Yearly | $24.99 | per year |


### Astrian Light

[App page](https://appshunter.io/ios/app/astrian-light/id6798375806)

Plan your celestial photography with precise calculations for eclipses, golden hour, and astrophotography. Visualize the sky's events with your real horizon and location data. Includes tools for hyperfocal distance and exposure.

**Highlights:** Eclipse shadow mapping, Real horizon calculations, Golden and Blue Hour timing, Sky object identification, Trip planning tools, Photography calculators, Camera and lens gear saving

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Deneb Astro Tool free?

Deneb Astro Tool is free to download, with in-app purchases available.

### Is Astrian Light free?

Astrian Light is free to download, with no in-app purchases.

### Do Deneb Astro Tool or Astrian Light have ads?

Neither Deneb Astro Tool nor Astrian Light shows ads.

### Which is updated more often, Deneb Astro Tool or Astrian Light?

Deneb Astro Tool ships an update every 8 days, and Astrian Light daily. Most recently, Deneb Astro Tool was updated on October 31, 2026 and Astrian Light on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*