# Emerald Observatory for iPad vs goTenna Pro+

The clearest difference is monetization model: goTenna Pro+ at free against Emerald Observatory for iPad's paid. Emerald Observatory for iPad's advantage is ratings volume (96 vs 1). On price, rating, review sentiment and ads 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 goTenna Pro+. That said, the two scores are not equally well evidenced: Emerald Observatory for iPad has 96 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 99% of Emerald Observatory for iPad's written reviews are positive against 100% of goTenna Pro+'s.

## The numbers

| Metric | Emerald Observatory for iPad | goTenna Pro+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (96 ratings)](https://appshunter.io/ios/app/emerald-observatory-for-ipad/id364904759/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gotenna-pro-plus/id6749899600/reviews)** |
| Number of ratings | **96** | 1 |
| Positive reviews | 98.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | Paid | **Free** |
| Size | 19 MB | 71 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Bjorn Freeman-Benson](https://appshunter.io/developer/1766829089) | [goTenna Inc.](https://appshunter.io/developer/994940285) |

## 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


### goTenna Pro+

[App page](https://appshunter.io/ios/app/gotenna-pro-plus/id6749899600)

Enables mission-critical, off-grid communications by pairing with mesh networking radios. Share locations, send messages, and use customizable maps independently of cellular or satellite networks.

**Highlights:** Off-grid messaging, Location tracking, Customizable map markers, Route and shape drawing, Offline map downloads, AES 256 Encryption, Interoperable with other goTenna users

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

**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 goTenna Pro+ free?

goTenna Pro+ is free to download, with no in-app purchases.

### Which has better reviews, Emerald Observatory for iPad or goTenna Pro+?

goTenna Pro+ is rated higher. Emerald Observatory for iPad averages 4.9 out of 5 from 96 ratings, while goTenna Pro+ averages 5.0 from 1 ratings.

### Do Emerald Observatory for iPad or goTenna Pro+ have ads?

Neither Emerald Observatory for iPad nor goTenna Pro+ 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.*