Marine Debris Tracker vs Chptr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Marine Debris Tracker
Contribute to a global citizen science movement by reporting litter and plastic pollution. Your data helps build a comprehensive understanding of environmental issues, informing research and policy.
- Report litter and debris
- Contribute to citizen science
- Track inland and marine pollution
- Access open-data platform
- Generate scientific findings
- Inform policy decisions
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Debris Tracker is an open data citizen science movement, powered by Morgan Stanley. Join us in creating a bigger picture of the plastic pollution crisis by using the app to report litter wherever you find it, from our oceans to your backyard. Every day, dedicated educational, non-profit, and scientific organizations and passionate citizen scientists from all around the world use the Debris Tracker app to record GPS data on inland and marine debris. To date, Debris Tracker users have contributed 2 million items to our open-data platform, hosted at the University of Georgia and accessible to researchers and curious citizens everywhere. Together we can create a more comprehensive understanding of marine debris and plastic pollution by collecting and sharing data, generating scientific findings, informing policy, and inspiring upstream solutions. See our website for more information on how to get started or to download data: http://www.marinedebris.engr.uga.edu/. Debris Tracker is a joint effort of the NOAA Marine Debris Program and the Southeast Atlantic Marine Debris Initiative (SEA-MDI) out of the University of Georgia College of Engineering. Continued use of GPS in the background can dramatically decrease battery life.
Chptr
This app streamlines Greek life organization for fraternities and sororities. It provides a centralized platform for managing events, communication, and member information. Simplify chapter operations and enhance member engagement.
- Greek life management
- Event organization
- Member communication
- Chapter operations
- Member engagement
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Greek Life management on one platform.
Screenshots
Verdict
The clearest difference is review sentiment: Chptr at 100% against Marine Debris Tracker's 39%. Chptr also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (42 vs 1). Marine Debris Tracker's advantage is rating (5.0 vs 4.5) and monetization model (free vs ad-supported). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Marine Debris Tracker holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Chptr has 42 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 39% of Marine Debris Tracker's written reviews are positive against 100% of Chptr's, so the app with the better star average is not the one people write more warmly about.
Marine Debris Tracker ships an update every 2 months, Chptr every 2 weeks. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.
| Parameter | Marine Debris Tracker | Chptr |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.5 (42 ratings) |
| Positive reviews | 38.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 42 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.4 — better | 15.1 |
| Further details — not scored | ||
| Size | 29 MB | 72 MB |
| Age rating | 4+ | 12+ |
| Developer | Kyle Johnsen | CHPTR SOCIAL MANAGEMENT |
Customer experience
Marine Debris Tracker
Chptr
In-app purchases
Marine Debris Tracker
No in-app purchases
Chptr
No in-app purchases
Questions
Is Marine Debris Tracker free?
Is Chptr free?
Which has better reviews, Marine Debris Tracker or Chptr?
Do Marine Debris Tracker or Chptr have ads?
Which is updated more often, Marine Debris Tracker or Chptr?
Other comparisons
