# Groups.io App vs The Planetary Society

The clearest difference is rating: The Planetary Society at 4.7 against Groups.io App's 3.0. The Planetary Society also leads on update cadence (weekly vs every 15 months) and review sentiment (48% vs 36%). Groups.io App's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (15.0 vs 17.0). 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.

The Planetary Society holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 26 and 119 respectively. Written reviews point the same way: 36% of Groups.io App's written reviews are positive against 48% of The Planetary Society's.

Groups.io App ships an update every 15 months, The Planetary Society weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Groups.io App | The Planetary Society |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (26 ratings)](https://appshunter.io/ios/app/groupsio-app/id1553820507/reviews) | **[4.7 (119 ratings)](https://appshunter.io/ios/app/the-planetary-society/id6444780649/reviews)** |
| Number of ratings | 26 | **119** |
| Positive reviews | 36.0% of reviews | **47.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 130 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 9+ |
| Developer | [Groups.io, Inc](https://appshunter.io/developer/1482415932) | [The Planetary Society (Apps)](https://appshunter.io/developer/1656849139) |

## What reviewers say

### Groups.io App

[App page](https://appshunter.io/ios/app/groupsio-app/id1553820507)

This app provides a modern platform for online communities with powerful management tools. It offers advanced features like hashtag organization, topic muting, and integrations with other services. Users can find, join, and manage groups, receiving real-time notifications.

**Highlights:** Advanced group management, Hashtag archive organization, Mute individual topics, Real-time push notifications, Integrated Chat, Calendar, Polls, Integrations with RSS, Trello, Github, Member synchronization with Slack

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

**In-app purchases:** none


### The Planetary Society

[App page](https://appshunter.io/ios/app/the-planetary-society/id6444780649)

Connect with a global community of space enthusiasts. Engage in discussions, attend exclusive events, and learn about new missions and discoveries. Share your passion for space exploration through astrophotography, art, and creative work.

**Highlights:** Connect with members, Learn about space missions, Attend exclusive events, Take online classes, Advocate for space exploration, Share astrophotography and art, Discuss sci-fi

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

**In-app purchases:** none


## Frequently asked questions

### Is Groups.io App free?

Groups.io App is free to download, with no in-app purchases.

### Is The Planetary Society free?

The Planetary Society is free to download, with no in-app purchases.

### Which has better reviews, Groups.io App or The Planetary Society?

The Planetary Society is rated higher. Groups.io App averages 3.0 out of 5 from 26 ratings, while The Planetary Society averages 4.7 from 119 ratings.

### Do Groups.io App or The Planetary Society have ads?

Neither Groups.io App nor The Planetary Society shows ads.

### Which is updated more often, Groups.io App or The Planetary Society?

Groups.io App ships an update every 15 months, and The Planetary Society weekly. Most recently, Groups.io App was updated on October 24, 2026 and The Planetary Society on October 24, 2026.

---

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