# Phyto vs Jellywatch

The clearest difference is review sentiment: Jellywatch at 91% against Phyto's 64%. Jellywatch also leads on update cadence (every 3 months vs every 10 months) and rating (5.0 vs 4.8). Phyto's advantage is ratings volume (6 vs 1). 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, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Phyto has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 64% of Phyto's written reviews are positive against 91% of Jellywatch's.

Phyto ships an update every 10 months, Jellywatch every 3 months. The most recent releases landed on September 21, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Phyto | Jellywatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/phyto/id333237649/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jellywatch/id545501733/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 64.3% of reviews | **90.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 81 MB | 6 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gano Technologies LLC](https://appshunter.io/developer/333237652) | [Monterey Bay Aquarium Research Institute](https://appshunter.io/developer/997448509) |

## What reviewers say

### Phyto

[App page](https://appshunter.io/ios/app/phyto/id333237649)

Learn to identify common marine and freshwater phytoplankton with this educational app. It features a comprehensive identification guide, flashcards, and interactive games to aid learning. Developed with support from NOAA, it's designed for both iPhone and iPad.

**Highlights:** Phytoplankton identification guide, Marine and freshwater species, Flash cards for learning, Interactive identification games, Species details and photos, Submit observation results

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Phyto free?

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

### Is Jellywatch free?

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

### Which has better reviews, Phyto or Jellywatch?

Jellywatch is rated higher. Phyto averages 4.8 out of 5 from 6 ratings, while Jellywatch averages 5.0 from 1 ratings.

### Do Phyto or Jellywatch have ads?

Neither Phyto nor Jellywatch shows ads.

### Which is updated more often, Phyto or Jellywatch?

Phyto ships an update every 10 months, and Jellywatch every 3 months. Most recently, Phyto was updated on September 21, 2026 and Jellywatch on June 1, 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.*