Comparison

metroKEY vs Synca Social

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

Head to head
About

metroKEY

This app provides interactive access control for waste facilities, offering end-to-end visibility on usage. It features a user-friendly interface with fast sign-up, clear instructions, unit location mapping, and information on depositable items.

Highlights
  • Interactive access control
  • End-to-end usage visibility
  • Fast sign-up process
  • Unit location mapping
  • Deposit information
  • Bluetooth unit latch opening
  • Bin fill level monitoring
Features
Read full description

metroKEY is an interactive access control system, delivering end to end visibility on how the organics drop off facility is being used, with a user interface that actively encourages participation with fast sign up, easy to follow instructions, map locations of units, and clear information on what can be deposited. metroKEY enables users to create their own metroKEY account following a standard 2-step verification and password set up using their smartphone Once logged in to the metroKEY app, access to the unit can be granted once the one time ‘tick box’ user agreement condition has been met. This feature means that Admin intervention is not required to grant user access at the time, though within the metroKEY web portal, your admin staff are able to both grant and revoke user access as necessary. Making recycling as easy as trash disposal demands streamlined processes that enable access to the organics unit. Once users have signed in, the metroKEY app opens the unit latch via an illustrated pop-up question banner with a simple yes/no tick box for access once the user is within Bluetooth range of the unit. Where fill sensors are deployed smartphone app users can also see when a bin is full, allowing them to navigate to the nearest available drop-off location.

About

Synca Social

Easily transform your ideas into actionable plans with friends. Organize events, trips, and activities, and coordinate schedules to spend less time planning and more time enjoying experiences together.

Highlights
  • Turn shared content into plans
  • Collaborative list creation
  • Group polls and chat
  • Availability scheduling
  • Discover local events
  • Organize group trips
  • Schedule recurring plans
Features
Read full description

Synca is the easiest way to turn your ideas into real-life plans with friends. Always sending reels back and forth that never happen? Plans lost in the group chat? Can't decide what to do this weekend? Use Synca! Save anything you want to do like restaurants, events, trips, hikes, date ideas, concerts, local spots, and random ideas. Then turn those into shared plans with friends. Synca keeps everything in one place so you spend less time organizing and more time hanging out. Features Share from Anywhere Send an Instagram Reel, TikTok, or link straight to Synca and turn it into a plan Plan Together Create shared lists, invite friends, vote in polls, chat, and collect RSVPs in one place Find the Best Time Share availability and see when everyone is free Discover Things to Do Browse local events or get curated recommendations Keep Traditions Going Schedule recurring plans like weekly game nights or monthly dinners Travel Together Organize flights, hotels, itineraries, and must-see places in one shared trip Last-Minute Plans Let friends know when you're free right now Stop saving ideas that go nowhere. Start making them happen.

Screenshots

metroKEY4 screens
Synca Social4 screens

Verdict

The call

The clearest difference is rating: Synca Social at 5.0 against metroKEY's 2.8. Synca Social also leads on update cadence (every 4 days vs every 2 weeks). metroKEY's advantage is in-app purchases (none vs 1) and ratings volume (13 vs 2). On price, ads 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. Synca Social sells 1 one-off in-app purchase. metroKEY asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Synca Social holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: metroKEY has 13 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

metroKEY ships an update every 2 weeks, Synca Social every 4 days. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
metroKEY versus Synca Social: the parameters behind the verdict, then further details
ParametermetroKEYSynca Social
PriceFreeFree
Rating2.8 (13 ratings)5.0 (2 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings13 — better2
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better16.6
Further details — not scored
Size48 MB70 MB
Age rating4+17+
DeveloperStreetspace LtdSynca Limited Liability Company

Customer experience

metroKEY

All ratings10 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Synca Social

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

metroKEY

No in-app purchases

1 purchases

Synca Social

One-time1
  • Founding Supporter$4.99

Questions

Is metroKEY free?
metroKEY is free to download, with no in-app purchases.
Is Synca Social free?
Synca Social is free to download, with in-app purchases available.
Which has better reviews, metroKEY or Synca Social?
Synca Social is rated higher. metroKEY averages 2.8 out of 5 from 13 ratings, while Synca Social averages 5.0 from 2 ratings.
Do metroKEY or Synca Social have ads?
Neither metroKEY nor Synca Social shows ads.
Which is updated more often, metroKEY or Synca Social?
metroKEY ships an update every 2 weeks, and Synca Social every 4 days. Most recently, metroKEY was updated on October 24, 2026 and Synca Social on October 24, 2026.

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