# Phyto vs Protozoan Identification

The clearest difference is review sentiment: Phyto at 64% against Protozoan Identification's 0%. Phyto also leads on rating (4.8 vs 2.0) and ratings volume (6 vs 1). Protozoan Identification's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, 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.

Phyto holds the better App Store score, 4.8 against 2.0. 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 0% of Protozoan Identification's.

Phyto ships an update every 10 months, Protozoan Identification every 15 months. The most recent releases landed on September 21, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Phyto | Protozoan Identification |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/phyto/id333237649/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/protozoan-identification/id506715288/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | **64.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 15 months |
| Monetization | Free | Free |
| Size | 81 MB | 221 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gano Technologies LLC](https://appshunter.io/developer/333237652) | [Carolina Biological Supply](https://appshunter.io/developer/413708533) |

## 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


### Protozoan Identification

[App page](https://appshunter.io/ios/app/protozoan-identification/id506715288)

Explore a collection of protozoan images and videos. Features an interactive key, labeling activities, and practice exercises to aid in identification and study.

**Highlights:** Interactive dichotomous key, Labeling activities, Protozoan images and videos, Practice exercises, Study aids

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Phyto free?

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

### Is Protozoan Identification free?

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

### Which has better reviews, Phyto or Protozoan Identification?

Phyto is rated higher. Phyto averages 4.8 out of 5 from 6 ratings, while Protozoan Identification averages 2.0 from 1 ratings.

### Do Phyto or Protozoan Identification have ads?

Neither Phyto nor Protozoan Identification shows ads.

### Which is updated more often, Phyto or Protozoan Identification?

Phyto ships an update every 10 months, and Protozoan Identification every 15 months. Most recently, Phyto was updated on September 21, 2026 and Protozoan Identification on June 5, 2026.

---

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