Comparison

Green Pin vs GroundTime

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Green Pin

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
Read full description

Lead for the Planet. Green Pin connects a generation of passion with a generation of power, converting climate anxiety into forward motion Features: - Connect: Find other people in the sustainability movement - Celebrate Success: Capture progress for the environment - Find Solutions: Engage your community in finding and solving environmental problems - Offer to Help: Connect with employers to offer your assistance - Rate Organizations: Tell them what you think about their environmental impact - Map it: Assign GPS coordinates to problems and solutions

About

GroundTime

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
Read full description

GroundTime is the meetup app built for verified airline crew. When your layover lands you in an unfamiliar city or your base brings you home, GroundTime connects you with other crew nearby — for coffee, drinks, dinner, or whatever fills the hours between flights. Every member is a verified airline employee. No impostors, no outsiders. — Find meetups at any airport — See which crew are currently around at your base or layover — Create a meetup in 30 seconds — Join your domicile and local base groups for ongoing crew conversation — Vouching from real meetups builds your reputation over time GroundTime works the way crew schedules work. Instant join. Ephemeral chats. No friend requests, no DMs. Show up, hang out, move on. Currently for airline crew employees only — pilots, flight attendants, gate agents, dispatch, ground crew. Family pass holders and retired crew are not supported at this time. Terms of Use (EULA): https://www.groundtime.com/terms Privacy Policy: https://groundtime.com/privacy

Screenshots

Green Pin4 screens
GroundTime4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard7 real differences · 3 level
Green Pin versus GroundTime: the parameters behind the verdict, then further details
ParameterGreen PinGroundTime
PriceFreeFree
Rating5.0 (3 ratings) — better3.5 (11 ratings)
Positive reviews—50.0% of reviews
Number of ratings311 — better
Update frequencyMonthlyEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.4 — better16.0
Further details — not scored
Size46 MB111 MB
Age rating4+17+
DeveloperGreen Dock Ventures LLCThreadwell Labs, LLC

Customer experience

Green Pin

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

GroundTime

All ratings10 ratings
Positive50.0%
Neutral30.0%
Negative20.0%
Written reviews8 reviews
Positive50.0%
Neutral37.5%
Negative12.5%

In-app purchases

None

Green Pin

No in-app purchases

3 purchases

GroundTime

Subscriptions2
  • Crew Membership1 Month trial$5.991 Month
  • Crew Membership1 Month trial$49.991 Year
One-time1
  • Founding Member$49.99

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.

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