# Stickleback Evolution Lab vs Measurement in Physics

The clearest difference is price: Stickleback Evolution Lab at Free against Measurement in Physics's $0.99. Stickleback Evolution Lab also leads on iOS requirement (8.0 vs 12.0). Measurement in Physics's advantage is device support (3 vs 1). On update cadence, ads and in-app purchases there is nothing between them.

Stickleback Evolution Lab is free to download; Measurement in Physics costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Stickleback Evolution Lab ships an update every 28 months, Measurement in Physics every 33 months. Both last shipped on September 10, 2026.

## The numbers

| Metric | Stickleback Evolution Lab | Measurement in Physics |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| 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 | No |
| Ads | No | No |
| Update frequency | **Every 28 months** | Every 33 months |
| Monetization | Free | — |
| Size | 264 MB | 23 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Howard Hughes Medical Institute](https://appshunter.io/developer/411540290) | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) |

## 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


### Measurement in Physics

[App page](https://appshunter.io/ios/app/measurement-in-physics/id1203175591)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stickleback Evolution Lab free?

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

### Is Measurement in Physics free?

Measurement in Physics costs $0.99, with no in-app purchases.

### Do Stickleback Evolution Lab or Measurement in Physics have ads?

Neither Stickleback Evolution Lab nor Measurement in Physics shows ads.

### Which is updated more often, Stickleback Evolution Lab or Measurement in Physics?

Stickleback Evolution Lab ships an update every 28 months, and Measurement in Physics every 33 months. Most recently, Stickleback Evolution Lab was updated on September 10, 2026 and Measurement in Physics on September 10, 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.*