# Emerald Observatory for iPad vs FPDT

The clearest difference is monetization model: FPDT at free against Emerald Observatory for iPad's paid. FPDT also leads on device support (3 vs 1) and iOS requirement (13.2 vs 17.0). Emerald Observatory for iPad's advantage is ratings volume (99 vs 5). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Emerald Observatory for iPad against 5.0 for FPDT. That said, the two scores are not equally well evidenced: Emerald Observatory for iPad has 99 ratings behind it against 5, so its average is the more settled of the two.

## The numbers

| Metric | Emerald Observatory for iPad | FPDT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (99 ratings)](https://appshunter.io/ios/app/emerald-observatory-for-ipad/id364904759/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/fpdt/id6464222311/reviews)** |
| Number of ratings | **99** | 5 |
| Positive reviews | 98.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | Paid | **Free** |
| Size | 19 MB | 5 MB |
| Requires iOS | 17.0 | **13.2** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bjorn Freeman-Benson](https://appshunter.io/developer/1766829089) | [Rich Zins](https://appshunter.io/developer/1705644148) |

## What reviewers say

### Emerald Observatory for iPad

[App page](https://appshunter.io/ios/app/emerald-observatory-for-ipad/id364904759)

This app provides a comprehensive astronomical display on a single screen, offering detailed information about celestial bodies and timekeeping. It features a heliocentric orrery, rise and set times, twilight information, and moon phase details. Users can navigate through time and set alarms for astronomical events.

**Highlights:** Astronomical information display, Heliocentric orrery, Rise and set times for Sun, Moon, planets, Twilight times, Moon phase and orientation, World map of day/night regions, Eclipse simulator

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

**In-app purchases:** none

**What reviewers like**

- ✨ Visually stunning and beautiful design
- 💡 Extremely informative and data-rich
- 👍 Elegant and exquisite user interface
- 🚀 Flawless UX and intuitive design
- 🌟 Unique and nonpareil functionality

**What reviewers complain about**

- ⏳ Last update a year ago
- 🤔 Interface can be tough to decipher initially
- 🔄 Lack of recent updates
- 📱 Not available on iPhone/Apple Watch

**Requested features**

- Port to screen wallpaper
- Large wall clock version
- Apple TV version
- Support for Uranus, Neptune, and Pluto
- iPhone and Apple Watch versions


### FPDT

[App page](https://appshunter.io/ios/app/fpdt/id6464222311)

This tool allows pilots to log and configure actions taken during combat missions. The logged data, including event name, location, and time, can be exported for debriefing and training. It also offers real-time monitoring with live targeting information.

**Highlights:** Log combat mission actions, Configure action types, Export data to PDF/plaintext, Real-time location monitoring, Live bullseye targeting information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Emerald Observatory for iPad free?

Emerald Observatory for iPad is free to download, with no in-app purchases.

### Is FPDT free?

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

### Which has better reviews, Emerald Observatory for iPad or FPDT?

FPDT is rated higher. Emerald Observatory for iPad averages 4.9 out of 5 from 99 ratings, while FPDT averages 5.0 from 5 ratings.

### Do Emerald Observatory for iPad or FPDT have ads?

Neither Emerald Observatory for iPad nor FPDT shows ads.

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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.*