# Triatlas vs Eclipse Simulator

The clearest difference is update cadence: Eclipse Simulator at every 4 days against Triatlas's every 13 months. Triatlas's advantage is iOS requirement (6.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Triatlas ships an update every 13 months, Eclipse Simulator every 4 days. The most recent releases landed on September 25, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Triatlas | Eclipse Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (15 ratings)](https://appshunter.io/ios/app/triatlas/id592681081/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 465 MB | 3.2 GB |
| Requires iOS | **6.1** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [DDQ](https://appshunter.io/developer/418328467) | [Fumikazu Kondo](https://appshunter.io/developer/1895556530) |

## What reviewers say

### Triatlas

[App page](https://appshunter.io/ios/app/triatlas/id592681081)

Explore the cosmos with a comprehensive star chart featuring millions of celestial objects, including stars, galaxies, and nebulae. Customize your viewing experience with night vision, orientation controls, and intuitive navigation.

**Highlights:** Detailed star catalog (up to mag 12.6), Extensive galaxy and nebula data, Support for clusters and double stars, Flexible night vision mode, Adjustable orientation controls (flip/mirror), Chart-to-chart navigation

**Features:** Vision Pro support

**In-app purchases:** none


### Eclipse Simulator

[App page](https://appshunter.io/ios/app/eclipse-simulator/id6806361365)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Triatlas free?

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

### Is Eclipse Simulator free?

Eclipse Simulator is free to download, with no in-app purchases.

### Do Triatlas or Eclipse Simulator have ads?

Neither Triatlas nor Eclipse Simulator shows ads.

### Which is updated more often, Triatlas or Eclipse Simulator?

Triatlas ships an update every 13 months, and Eclipse Simulator every 4 days. Most recently, Triatlas was updated on September 25, 2026 and Eclipse Simulator on October 6, 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.*