# Protozoan Identification vs Periodic Table 2026

The clearest difference is in-app purchases: Protozoan Identification at none against Periodic Table 2026's 2. Protozoan Identification also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Periodic Table 2026 sells 2 in-app purchases, starting at $2.99 per 7 days. Protozoan Identification asks for nothing beyond the download.

## The numbers

| Metric | Protozoan Identification | Periodic Table 2026 |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | — |
| Monetization | Free | — |
| Size | 221 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Carolina Biological Supply](https://appshunter.io/developer/413708533) | [Edison Espinosa](https://appshunter.io/developer/1368707952) |

## 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


### Periodic Table 2026

[App page](https://appshunter.io/ios/app/periodic-table-2026-elements/id6759682032)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Yearly Premium | $12.99 | per year |


## Frequently asked questions

### Is Protozoan Identification free?

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

### Is Periodic Table 2026 free?

Periodic Table 2026 is free to download, with in-app purchases available.

### Do Protozoan Identification or Periodic Table 2026 have ads?

Neither Protozoan Identification nor Periodic Table 2026 shows ads.

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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.*