Protozoan Identification vs Action Potentials
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protozoan Identification
Explore a collection of protozoan images and videos. Features an interactive key, labeling activities, and practice exercises to aid in identification and study.
- Interactive dichotomous key
- Labeling activities
- Protozoan images and videos
- Practice exercises
- Study aids
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The Protozoan Identification app features Carolina images and videos. The app includes an interactive dichotomous key, 3 labeling activities for practice and study, 20 additional photos of unique protozoans, and 8 protozoan video clips. *The Lite version includes only one labeling activity, two video, and two photos.
Action Potentials
Explore the mechanics of action potentials in real-time. Adjust parameters and introduce various drugs to observe their impact on neuronal signaling. Choose between single event simulations or continuous manual current injections.
- Real-time action potential visualization
- Adjustable simulation parameters
- Drug effect simulation (lidocaine, tetrodotoxin, TEA)
- Single action potential mode
- Continuous manual current injection
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In this app, you can see how action potentials work by watching the action potential as it happens and adjusting the parameters. You can add drugs such as lidocaine, tetrodotoxin, and TEA to observe the effects on the action potential. You have the option to see a single action potential with a preset current injection, or a continuous option where you can manually inject current to trigger an action potential.
Screenshots
Verdict
The clearest difference is rating: Action Potentials at 4.7 against Protozoan Identification's 2.0. Action Potentials also leads on update cadence (every 3 weeks vs every 15 months) and ratings volume (13 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Action Potentials holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Action Potentials has 13 ratings behind it against 1, so its average is the more settled of the two.
Protozoan Identification ships an update every 15 months, Action Potentials every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Protozoan Identification | Action Potentials |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 4.7 (13 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 13 — better |
| Update frequency | Every 15 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 221 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Carolina Biological Supply | Beau Forest |
Customer experience
Protozoan Identification
Action Potentials
In-app purchases
Protozoan Identification
No in-app purchases
Action Potentials
No in-app purchases
Questions
Is Protozoan Identification free?
Is Action Potentials free?
Which has better reviews, Protozoan Identification or Action Potentials?
Do Protozoan Identification or Action Potentials have ads?
Which is updated more often, Protozoan Identification or Action Potentials?
Other comparisons
