# Stickleback Evolution Lab vs Studytok

The clearest difference is in-app purchases: Stickleback Evolution Lab at none against Studytok's 2. Stickleback Evolution Lab also leads on iOS requirement (8.0 vs 16.4). Studytok's advantage is update cadence (every 9 days vs every 28 months). On price, ads and device support there is nothing between them.

Both are free to download. Studytok sells 2 in-app purchases, starting at $8.99 per month. Stickleback Evolution Lab asks for nothing beyond the download.

Stickleback Evolution Lab ships an update every 28 months, Studytok every 9 days. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Stickleback Evolution Lab | Studytok |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (8 ratings)](https://appshunter.io/ios/app/stickleback-evolution-lab/id938339250/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 264 MB | 54 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Howard Hughes Medical Institute](https://appshunter.io/developer/411540290) | [Piotr Rudnicki](https://appshunter.io/developer/1245760526) |

## What reviewers say

### Stickleback Evolution Lab

[App page](https://appshunter.io/ios/app/stickleback-evolution-lab/id938339250)

Explore the science of evolution by analyzing the pelvic structures of threespine stickleback fish. This virtual lab offers three experiments using real fish specimens and fossils, complete with graphing and statistical analysis tools for drawing conclusions about population evolution.

**Highlights:** Analyze pelvic structures of threespine stickleback fish, Conduct experiments with living specimens and fossils, Collect and analyze biological data, Graphing and statistical analysis tools, Learn about evolutionary science

**Features:** macOS Compatibility

**In-app purchases:** none


### Studytok

[App page](https://appshunter.io/ios/app/studytok-ai-quiz-and-flashcards/id6795855744)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyTok Premium Monthly | $8.99 | per month |
| StudyTok Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is Stickleback Evolution Lab free?

Stickleback Evolution Lab is free to download, with no in-app purchases.

### Is Studytok free?

Studytok is free to download, with in-app purchases available.

### Do Stickleback Evolution Lab or Studytok have ads?

Neither Stickleback Evolution Lab nor Studytok shows ads.

### Which is updated more often, Stickleback Evolution Lab or Studytok?

Stickleback Evolution Lab ships an update every 28 months, and Studytok every 9 days. Most recently, Stickleback Evolution Lab was updated on November 1, 2026 and Studytok on October 29, 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.*