Comparison

COSMO vs Greco | Group Chat

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

Head to head
About

COSMO

This app allows parents to manage a child's smart watch for safety and communication. It offers GPS tracking, contact management, and customizable alerts for peace of mind. Parents can also monitor activity and set quiet times for school.

Highlights
  • GPS location tracking
  • Approved contact management
  • Geo-fence 'SafeZone' alerts
  • School Mode for distraction-free learning
  • SOS emergency alerts
  • Activity tracking and goals
  • Customizable alarms and reminders
Features
Read full description

Keep your kids safe and connected with the COSMO Mission Control parent app and JrTrack kids smart watch. With Mission Control, you have all the tools you need for safety, connection, and convenience right in the palm of your hand. JrTrack is the all-in-one wearable phone, watch, and GPS tracker that’s safe for kids and trusted by parents. It pairs seamlessly with the Mission Control parent app where you can: - Add and manage approved contacts and guardians for safety & security - Check your child’s location with reliable GPS tracking - Set custom geo-fence “SafeZones” and receive check-in alerts when your child enters or leaves a designated area - Set School Mode days and times to limit distractions - Track your child’s steps and set activity goals - Receive emergency alerts when your child activates SOS mode - Set custom alarms and reminders - Manage settings for your child’s JrTrack watch Loved by Parents & Kids “This was easy to set up and works wonderfully...I recommend this watch 100%” - Michele S. (TN) “We use this watch to stay in touch with my kids during the day while I’m at work. It’s a really nice thing being able to text your young kid to make sure they are okay during the day.” - Katie L (VA) “It's given us a lot of freedom and confidence” - Eric E (TX) Safe & Secure Completely COPPA compliant, safety certified, and data secure. It’s the confidence parents need, and families deserve. Connection without Compromise Families shouldn’t have to choose between connection and kids’ safety. With JrTrack and the COSMO: Mission Control app, you’re in control - no internet browsing or social media access, plus a completely customizable approved safe contact list. **The COSMO: Mission Control app is not compatible with first-generation JrTrack 1 devices.

About

Greco | Group Chat

This app facilitates group communication specifically designed for classroom settings. It offers a streamlined way for students and educators to connect and manage group activities within an educational context.

Highlights
  • Classroom group chat
  • Group management tools
  • Educational communication
  • Student-teacher interaction
  • Streamlined messaging
Features
Read full description

Greco is a group chat app with a focus on classroom group management.

Screenshots

COSMO4 screens
Greco | Group Chat4 screens

Verdict

The call

The clearest difference is review sentiment: COSMO at 60% against Greco | Group Chat's 0%. COSMO also leads on ratings volume (276 vs 3). Greco | Group Chat's advantage is rating (4.3 vs 3.0) and update cadence (weekly vs every 2 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Greco | Group Chat holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: COSMO has 276 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 60% of COSMO's written reviews are positive against 0% of Greco | Group Chat's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

COSMO ships an update every 2 months, Greco | Group Chat weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
COSMO versus Greco | Group Chat: the parameters behind the verdict, then further details
ParameterCOSMOGreco | Group Chat
PriceFreeFree
Rating3.0 (276 ratings)4.3 (3 ratings) — better
Positive reviews59.8% of reviews — better0.0% of reviews
Number of ratings276 — better3
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.0.0 — better
Further details — not scored
Size20 MB62 MB
Age rating4+4+
Developercom.cosmo.smartwatchJoshua Forrest

Customer experience

COSMO

All ratings270 ratings
Positive50.4%
Neutral9.6%
Negative40.0%
Written reviews204 reviews
Positive59.8%
Neutral9.8%
Negative30.4%

Greco | Group Chat

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

COSMO

Reported bugs

4 issues
  • Activation and account setup issues
  • Frequent app crashes and freezes
  • Inconsistent connectivity and service disruptions
  • Inability to disable watch without parental access

Requested features

4 requests
  • Improved location tracking accuracy and real-time updates
  • Ability for all approved contacts to text the child
  • Integrated parental portal within the app
  • Additional features like video calling, night mode, and more customization

Greco | Group Chat

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

COSMO

No in-app purchases

None

Greco | Group Chat

No in-app purchases

Questions

Is COSMO free?
COSMO is free to download, with no in-app purchases.
Is Greco | Group Chat free?
Greco | Group Chat is free to download, with no in-app purchases.
Which has better reviews, COSMO or Greco | Group Chat?
Greco | Group Chat is rated higher. COSMO averages 3.0 out of 5 from 276 ratings, while Greco | Group Chat averages 4.3 from 3 ratings.
Do COSMO or Greco | Group Chat have ads?
Neither COSMO nor Greco | Group Chat shows ads.
Which is updated more often, COSMO or Greco | Group Chat?
COSMO ships an update every 2 months, and Greco | Group Chat weekly. Most recently, COSMO was updated on November 3, 2026 and Greco | Group Chat on October 30, 2026.

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