# Marine Debris Tracker vs Frog Identifier Frog Sound ID

The clearest difference is review sentiment: Frog Identifier Frog Sound ID at 82% against Marine Debris Tracker's 39%. Frog Identifier Frog Sound ID also leads on ratings volume (188 vs 1) and update cadence (every 4 weeks vs every 2 months). Marine Debris Tracker's advantage is rating (5.0 vs 3.5) and in-app purchases (none vs 3). On price and device support there is nothing between them.

Both are free to download. Frog Identifier Frog Sound ID sells 3 in-app purchases, starting at $4.99 per 7 days. Marine Debris Tracker asks for nothing beyond the download.

Marine Debris Tracker holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Frog Identifier Frog Sound ID has 188 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 82% of Frog Identifier Frog Sound ID'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, Frog Identifier Frog Sound ID every 4 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Marine Debris Tracker | Frog Identifier Frog Sound ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/marine-debris-tracker/id432758761/reviews)** | [3.5 (188 ratings)](https://appshunter.io/ios/app/frog-identifier-frog-sound-id/id6499125621/reviews) |
| Number of ratings | 1 | **188** |
| Positive reviews | 38.9% of reviews | **81.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 151 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kyle Johnsen](https://appshunter.io/developer/1021572657) | [Ha Vu Thi](https://appshunter.io/developer/1677716054) |

## 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


### Frog Identifier Frog Sound ID

[App page](https://appshunter.io/ios/app/frog-identifier-frog-sound-id/id6499125621)

Identify reptiles, frogs, snakes, and birds using your device's camera or uploaded photos. Get detailed information on species, including appearance, habitat, and sounds. Organize your discoveries with a personal collection feature.

**Highlights:** AI-powered reptile identification, Camera detection for live capture, Detailed species information, Habitat and sound data, Personal observation collections, Identification of over 10,000 species

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Monthly | $9.99 | per month |
| Premium Yearly | $39.99 | per year |

**What reviewers like**

- 🎯 Highly accurate species identification
- 📸 Fast and reliable camera detection
- 📚 Comprehensive encyclopedia with detailed species information
- 🎨 User-friendly and intuitive interface
- 📱 Easy to use on-the-go during outdoor activities

**What reviewers complain about**

- 💰 Aggressive pricing and subscription model
- 🔐 Limited functionality without premium subscription
- ⏱️ Restricted free tier usage (3 identifications per day)
- ❌ Occasional misidentification errors
- 🎤 Cannot identify animals by sound

**Reported bugs**

- Misidentified frog as owl
- Inconsistent identification accuracy on some species
- Misidentified tadpoles/baby frogs as insects

**Requested features**

- AI assistant integration within the app
- Sound-based animal identification capability
- Support for more animal types beyond reptiles and amphibians


## Frequently asked questions

### Is Marine Debris Tracker free?

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

### Is Frog Identifier Frog Sound ID free?

Frog Identifier Frog Sound ID is free to download, with in-app purchases available.

### Which has better reviews, Marine Debris Tracker or Frog Identifier Frog Sound ID?

Marine Debris Tracker is rated higher. Marine Debris Tracker averages 5.0 out of 5 from 1 ratings, while Frog Identifier Frog Sound ID averages 3.5 from 188 ratings.

### Do Marine Debris Tracker or Frog Identifier Frog Sound ID have ads?

Frog Identifier Frog Sound ID shows ads; Marine Debris Tracker does not.

### Which is updated more often, Marine Debris Tracker or Frog Identifier Frog Sound ID?

Marine Debris Tracker ships an update every 2 months, and Frog Identifier Frog Sound ID every 4 weeks. Most recently, Marine Debris Tracker was updated on November 6, 2026 and Frog Identifier Frog Sound ID on October 30, 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.*