# Protozoan Identification vs SoLeySU Learning

The clearest difference is update cadence: SoLeySU Learning at every 2 weeks against Protozoan Identification's every 15 months. Protozoan Identification's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Protozoan Identification ships an update every 15 months, SoLeySU Learning every 2 weeks. The most recent releases landed on June 5, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Protozoan Identification | SoLeySU Learning |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/protozoan-identification/id506715288/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 221 MB | 72 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carolina Biological Supply](https://appshunter.io/developer/413708533) | [Odilo](https://appshunter.io/developer/976580041) |

## What reviewers say

### 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


### SoLeySU Learning

[App page](https://appshunter.io/ios/app/soleysu-learning/id6444648731)

**In-app purchases:** none


## Frequently asked questions

### Is Protozoan Identification free?

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

### Is SoLeySU Learning free?

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

### Do Protozoan Identification or SoLeySU Learning have ads?

Neither Protozoan Identification nor SoLeySU Learning shows ads.

### Which is updated more often, Protozoan Identification or SoLeySU Learning?

Protozoan Identification ships an update every 15 months, and SoLeySU Learning every 2 weeks. Most recently, Protozoan Identification was updated on June 5, 2026 and SoLeySU Learning on September 23, 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.*