# Marine Debris Tracker vs Climate Action Now

Marine Debris Tracker and Climate Action Now both sit at 5.0 stars, but that hides the real split: 97% of Climate Action Now's written reviews are positive against 39% of Marine Debris Tracker's. Climate Action Now also leads on ratings volume (168 vs 1) and update cadence (every 3 weeks vs every 2 months). Marine Debris Tracker's advantage is iOS requirement (12.4 vs 15.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Marine Debris Tracker against 4.9 for Climate Action Now. That said, the two scores are not equally well evidenced: Climate Action Now has 168 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 39% of Marine Debris Tracker's written reviews are positive against 97% of Climate Action Now's.

Marine Debris Tracker ships an update every 2 months, Climate Action Now every 3 weeks. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Marine Debris Tracker | Climate Action Now |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/marine-debris-tracker/id432758761/reviews)** | [4.9 (168 ratings)](https://appshunter.io/ios/app/climate-action-now/id1497924893/reviews) |
| Number of ratings | 1 | **168** |
| Positive reviews | 38.9% of reviews | **96.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 29 MB | 67 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kyle Johnsen](https://appshunter.io/developer/1021572657) | [Climate Action Now](https://appshunter.io/developer/1497924892) |

## What reviewers say

### Marine Debris Tracker

[App page](https://appshunter.io/ios/app/marine-debris-tracker/id432758761)

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.

**Highlights:** Report litter and debris, Contribute to citizen science, Track inland and marine pollution, Access open-data platform, Generate scientific findings, Inform policy decisions

**Features:** macOS Compatibility

**In-app purchases:** none


### Climate Action Now

[App page](https://appshunter.io/ios/app/climate-action-now/id1497924893)

This app empowers users to advocate for climate action by providing pre-written messages to send to political and business leaders. It simplifies contacting officials, educates users on issues, and rewards actions with real tree plantings. Users can also engage with a community feed and join teams for collective impact.

**Highlights:** Send personalized messages to leaders, Contact elected officials and CEOs, Learn about climate issues, Earn real trees for actions, Join teams and compete, Share actions in a community feed

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Effortless climate action
- 👍 Easy to use interface
- 💡 Educational content provided
- 🌳 Earning trees for actions
- 🗣️ Amplifies user voices

**What reviewers complain about**

- ⚠️ Hidden fees/subscription barriers
- ⏳ Slow loading times
- ❓ Donation requests can be frequent
- ⚠️ Technical quirks and error messages
- 🚫 Unwanted public posting of actions

**Reported bugs**

- App takes too long to load
- Error messages when sending emails
- App assumes specific email client (e.g., Mail on iPhone)
- App posts user actions publicly without easy opt-out

**Requested features**

- Option to turn off public posting of actions
- More flexibility in email platform selection
- Alternative to mandatory pronoun selection (e.g., 'other' option)
- Less frequent donation requests


## Frequently asked questions

### Is Marine Debris Tracker free?

Marine Debris Tracker is free to download, with no in-app purchases.

### Is Climate Action Now free?

Climate Action Now is free to download, with no in-app purchases.

### Which has better reviews, Marine Debris Tracker or Climate Action Now?

Marine Debris Tracker is rated higher. Marine Debris Tracker averages 5.0 out of 5 from 1 ratings, while Climate Action Now averages 4.9 from 168 ratings.

### Do Marine Debris Tracker or Climate Action Now have ads?

Neither Marine Debris Tracker nor Climate Action Now shows ads.

### Which is updated more often, Marine Debris Tracker or Climate Action Now?

Marine Debris Tracker ships an update every 2 months, and Climate Action Now every 3 weeks. Most recently, Marine Debris Tracker was updated on November 6, 2026 and Climate Action Now on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*