# Green Pin vs GroundTime

The clearest difference is rating: Green Pin at 5.0 against GroundTime's 3.5. Green Pin also leads on in-app purchases (none vs 3) and iOS requirement (13.4 vs 16.0). GroundTime's advantage is ads (none vs shown) and update cadence (every 2 days vs monthly). On price and device support there is nothing between them.

Both are free to download. GroundTime sells 3 in-app purchases, starting at $5.99 per month. Green Pin asks for nothing beyond the download.

Green Pin holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 3 and 11 respectively.

Green Pin ships an update monthly, GroundTime every 2 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Green Pin | GroundTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/green-pin/id1592245123/reviews)** | [3.5 (11 ratings)](https://appshunter.io/ios/app/groundtime/id6768320630/reviews) |
| Number of ratings | 3 | **11** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 46 MB | 111 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Green Dock Ventures LLC](https://appshunter.io/developer/1591816000) | [Threadwell Labs, LLC](https://appshunter.io/developer/1887975814) |

## What reviewers say

### Green Pin

[App page](https://appshunter.io/ios/app/green-pin/id1592245123)

This app connects environmentally conscious individuals to drive positive change. It facilitates finding like-minded people, celebrating environmental progress, and collaboratively solving ecological issues. Users can also offer assistance to organizations and rate their environmental impact.

**Highlights:** Connect with sustainability advocates, Track and celebrate environmental progress, Collaborate on environmental solutions, Offer assistance to organizations, Rate organizational environmental impact, Map environmental problems and solutions

**Features:** macOS Compatibility

**In-app purchases:** none


### GroundTime

[App page](https://appshunter.io/ios/app/groundtime/id6768320630)

Connect with verified airline crew members for meetups in any city. Easily find or create gatherings for coffee, drinks, or meals during layovers or at your base. Enjoy ephemeral chats and build your reputation through real-world meetups.

**Highlights:** Verified airline crew members only, Find meetups at any airport, See crew nearby during layovers, Create meetups quickly, Join domicile and base groups, Reputation building through vouching, Ephemeral chats

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crew Membership | $5.99 | per month |
| Crew Membership | $49.99 | per year |
| Founding Member | $49.99 | one-time |


## Frequently asked questions

### Is Green Pin free?

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

### Is GroundTime free?

GroundTime is free to download, with in-app purchases available.

### Which has better reviews, Green Pin or GroundTime?

Green Pin is rated higher. Green Pin averages 5.0 out of 5 from 3 ratings, while GroundTime averages 3.5 from 11 ratings.

### Do Green Pin or GroundTime have ads?

Green Pin shows ads; GroundTime does not.

### Which is updated more often, Green Pin or GroundTime?

Green Pin ships an update monthly, and GroundTime every 2 days. Most recently, Green Pin was updated on October 6, 2026 and GroundTime 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.*