# Jellywatch vs Whale and Dolphin Tracker

The clearest difference is review sentiment: Jellywatch at 91% against Whale and Dolphin Tracker's 17%. Jellywatch also leads on rating (3.0 vs 2.5). Whale and Dolphin Tracker's advantage is update cadence (monthly vs every 3 months) and ratings volume (24 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Jellywatch holds the better App Store score, 3.0 against 2.5. That said, the two scores are not equally well evidenced: Whale and Dolphin Tracker has 24 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 91% of Jellywatch's written reviews are positive against 17% of Whale and Dolphin Tracker's.

Jellywatch ships an update every 3 months, Whale and Dolphin Tracker monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Jellywatch | Whale and Dolphin Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/jellywatch/id545501733/reviews)** | [2.5 (24 ratings)](https://appshunter.io/ios/app/whale-and-dolphin-tracker/id1336754335/reviews) |
| Number of ratings | 2 | **24** |
| Positive reviews | **90.9% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 6 MB | 22 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Monterey Bay Aquarium Research Institute](https://appshunter.io/developer/997448509) | [Pacific Whale Foundation](https://appshunter.io/developer/1336754334) |

## What reviewers say

### Jellywatch

[App page](https://appshunter.io/ios/app/jellywatch/id545501733)

This app serves as a global database for monitoring ocean conditions, focusing on jellyfish populations. It empowers citizen scientists to submit observations and photos, contributing to freely accessible data on blooms, red tides, and general marine environments. Species identification is also offered for submitted images.

**Highlights:** Ocean condition monitoring, Jellyfish population tracking, Citizen science reporting, Global data submission, Species identification, Free data access

**Features:** macOS Compatibility

**In-app purchases:** none


### Whale and Dolphin Tracker

[App page](https://appshunter.io/ios/app/whale-and-dolphin-tracker/id1336754335)

Record sightings of whales and dolphins worldwide. Contribute to global research by logging your observations with GPS data and photos. Help scientists understand marine wildlife distribution and environmental interactions.

**Highlights:** Log sightings in real-time, Built-in GPS logger, Upload photos with sightings, Access submitted data, View global sightings map, Contribute to citizen science

**In-app purchases:** none


## Frequently asked questions

### Is Jellywatch free?

Jellywatch is free to download, with no in-app purchases.

### Is Whale and Dolphin Tracker free?

Whale and Dolphin Tracker is free to download, with no in-app purchases.

### Which has better reviews, Jellywatch or Whale and Dolphin Tracker?

Jellywatch is rated higher. Jellywatch averages 3.0 out of 5 from 2 ratings, while Whale and Dolphin Tracker averages 2.5 from 24 ratings.

### Do Jellywatch or Whale and Dolphin Tracker have ads?

Neither Jellywatch nor Whale and Dolphin Tracker shows ads.

### Which is updated more often, Jellywatch or Whale and Dolphin Tracker?

Jellywatch ships an update every 3 months, and Whale and Dolphin Tracker monthly. Most recently, Jellywatch was updated on October 26, 2026 and Whale and Dolphin Tracker on October 24, 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.*