# Natural Selection Sim vs Questar Student Assessments

The clearest difference is review sentiment: Natural Selection Sim at 50% against Questar Student Assessments's 14%. Natural Selection Sim also leads on update cadence (every 3 months vs every 11 months) and iOS requirement (10.0 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Natural Selection Sim ships an update every 3 months, Questar Student Assessments every 11 months. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Natural Selection Sim | Questar Student Assessments |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (22 ratings)](https://appshunter.io/ios/app/natural-selection-sim/id910261072/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | **50.0% of reviews** | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | Free | Free |
| Size | 128 MB | 3 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Amplify Education, Inc.](https://appshunter.io/developer/433704168) | [Questar Assessment, Inc.](https://appshunter.io/developer/922508523) |

## What reviewers say

### Natural Selection Sim

[App page](https://appshunter.io/ios/app/natural-selection-sim/id910261072)

This educational simulation models natural selection processes. It is designed for use with a specific science curriculum and requires a school-provided login and license to function.

**Highlights:** Natural selection simulation, Educational curriculum integration, Requires school login and license, iPad compatible

**In-app purchases:** none


### Questar Student Assessments

[App page](https://appshunter.io/ios/app/questar-student-assessments/id922508524)

This platform securely delivers educational test content to students through an intuitive interface. Users sign in with examiner-provided credentials to access designated tests, with the application restricting access to only the test content for enhanced security.

**Highlights:** Secure test delivery, Intuitive interface, Student sign-in, Test security features, Designated test access

**In-app purchases:** none


## Frequently asked questions

### Is Natural Selection Sim free?

Natural Selection Sim is free to download, with no in-app purchases.

### Is Questar Student Assessments free?

Questar Student Assessments is free to download, with no in-app purchases.

### Do Natural Selection Sim or Questar Student Assessments have ads?

Neither Natural Selection Sim nor Questar Student Assessments shows ads.

### Which is updated more often, Natural Selection Sim or Questar Student Assessments?

Natural Selection Sim ships an update every 3 months, and Questar Student Assessments every 11 months. Most recently, Natural Selection Sim was updated on October 24, 2026 and Questar Student Assessments on October 3, 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.*