# Blue Moon App vs Total Solar Eclipse 2027

The clearest difference is price: Total Solar Eclipse 2027 at Free against Blue Moon App's $0.99. Total Solar Eclipse 2027 also leads on update cadence (every 5 days vs every 17 months). Blue Moon App's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 16.4). On ads and device support there is nothing between them.

Total Solar Eclipse 2027 is free to download; Blue Moon App costs $0.99 up front. Total Solar Eclipse 2027 sells 1 one-off in-app purchase. Blue Moon App asks for nothing beyond the download.

Blue Moon App ships an update every 17 months, Total Solar Eclipse 2027 every 5 days. The most recent releases landed on October 8, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Blue Moon App | Total Solar Eclipse 2027 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/blue-moon-app/id645509085/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 3 MB | 54 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Syntherma](https://appshunter.io/developer/6773814951) |

## What reviewers say

### Blue Moon App

[App page](https://appshunter.io/ios/app/blue-moon-app/id645509085)

Track upcoming blue moon and black moon celestial events. Get notifications for these rare lunar occurrences and easily add them to your personal calendar. Share these astronomical dates with friends and family through various social platforms.

**Highlights:** Countdown to blue and black moons, Filter by moon type, Add events to calendar, Share event dates, iPad multitasking support

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

**In-app purchases:** none


### Total Solar Eclipse 2027

[App page](https://appshunter.io/ios/app/total-solar-eclipse-2027/id6778520438)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Eclipse Viewer Pro | $5.99 | one-time |


## Frequently asked questions

### Is Blue Moon App free?

Blue Moon App costs $0.99, with no in-app purchases.

### Is Total Solar Eclipse 2027 free?

Total Solar Eclipse 2027 is free to download, with in-app purchases available.

### Do Blue Moon App or Total Solar Eclipse 2027 have ads?

Neither Blue Moon App nor Total Solar Eclipse 2027 shows ads.

### Which is updated more often, Blue Moon App or Total Solar Eclipse 2027?

Blue Moon App ships an update every 17 months, and Total Solar Eclipse 2027 every 5 days. Most recently, Blue Moon App was updated on October 8, 2026 and Total Solar Eclipse 2027 on October 20, 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.*