# Genetics and Evolution

> Educational tool for solving genetics and evolution problems, including cross mapping and population growth. (iPhone/iPad app by Russell Myers.)

- Source: https://appshunter.io/ios/app/genetics-and-evolution/id650401749 (this page in markdown: same URL + `.md`)
- Developer: [Russell Myers](https://appshunter.io/developer/696524482)
- Category: Education
- Price: Free
- Rating: 3.90/5 from 8 App Store ratings · 7 written reviews indexed
- Age rating: 12+
- Requires: iOS 7.0 · 18 MB
- Languages: American English, German (Germany)
- Released: 2013-05-29
- Data updated: 2026-06-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/genetics-and-evolution/id650401749/reviews.md

## What is Genetics and Evolution?

Genetics and Evolution solves four types of basic problems commonly taught in introductory genetics courses in high schools and colleges.  This app was originally designed for the Duke University (and Coursera) Introduction to Genetics and Evolution course, but it is helpful for any students, teachers, or practitioners in genetics!  Problems solved include:

* Genetic cross mapping -- accepts genotype counts for three genes from a "test cross", and uses the counts to infer the gametic phase, the recombination rate between the three genes, and the gene order.

* Breeder's equation heritability -- with any three of the following values, calculates the fourth: starting phenotype, selected phenotype, response phenotype, broad-sense heritability.

* Hardy-Weinberg -- accepts genotype counts for a single gene and outputs observed genotype frequencies, expected genotype frequencies, and the coefficient of inbreeding (F).

* Population Growth -- with any of the following 3 values, calculates the fourth: Initial Population, Final Population, Time in years, Growth Rate (or separate birth/death rates)

* Self Test quiz-- quiz yourself on some common basic genetic terms.

* Allele Freak: track and graph the fate of alleles over multiple generations  based on relative fitness, genetic drift etc

* Cross Simulator: simulate various types of Mendelian crosses. results are displayed in Punnett Square format, and resulting genotypes/phenotypes and ratios are displayed

Use this app to check your answers, or better yet, to generate a nearly infinite number of practice problems!  Features Dropbox integration for depositing a pdf of practice problems.

## Key features

- Genetic cross mapping
- Breeder's equation heritability
- Hardy-Weinberg calculations
- Population growth simulation
- Self-test quizzes
- Allele fate tracking
- Mendelian cross simulation

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/genetics-and-evolution/id650401749/reviews.md

### 5/5 — Willis

*2021-09-15*

Profesor Willis is great 5/5

### 2/5 — Creepy

*2020-02-27*

Good app but the old man on the icon makes me uncomfortable.

### 1/5 — Buggy & Crashes on iOS 9.2.1!

*2016-01-22*

On my iPad Air 2 and my iPhone 5c both running the latest iOS 9.2.1, the app crashes every time I try to switch organisms in the cross simulator. When wanting to type in the alleles for a custom cross, the keyboard also gets stuck. With such application-breaking bugs, I'm worried about the correct functionality of the paid-for iPad version....

### 5/5 — Superb

*2014-01-31*

An extraordinary amount of work must have gone into this. Great tool for genetics! Thank you.

### 5/5 — Simple but good

*2013-10-04*

This is a simple app designed to solve basic math problems in genetics. It looks like the designers spent a lot of time developing the app.  The interface looks polished and I couldn't find any bugs.  Recommended.

### 5/5 — THANKYOU

*2013-09-05*

omg this app is so helpful for school work thankyou!'

### 5/5 — Best app to learn gen&evo

*2013-05-29*

I'm a student at Duke University and I used this app for my class. It's great tool to use to learn. I give it an A+

## Frequently asked questions about Genetics and Evolution

### What types of genetics problems can Genetics and Evolution solve?

Genetics and Evolution can solve problems related to genetic cross mapping, breeder's equation heritability, Hardy-Weinberg equilibrium, and population growth. It also includes a self-test quiz and tools for tracking allele fate and simulating Mendelian crosses.

### Is Genetics and Evolution suitable for beginners?

Yes, the app was designed for introductory genetics courses in high schools and colleges, making it suitable for students new to the subject. It helps solve common problems taught in these courses.

### Can I generate practice problems with Genetics and Evolution?

Absolutely. The app allows you to generate a nearly infinite number of practice problems to help you master genetic concepts. You can also use it to check your answers on existing problems.

### Does Genetics and Evolution have ads?

No, Genetics and Evolution does not contain advertisements. It is a completely ad-free application.

### What devices is Genetics and Evolution available on?

Genetics and Evolution is currently supported on iPhone and iPod devices. It is not available for Android or desktop platforms at this time.

### How often is Genetics and Evolution updated?

The latest version of Genetics and Evolution is 3.3, which was last updated on March 17, 2016. The app has not received updates in several years.

### What is the age rating for Genetics and Evolution?

Genetics and Evolution has an age rating of 12+, indicating it is suitable for users aged 12 and above. This is appropriate for its educational content.

### Does Genetics and Evolution offer certifications?

Genetics and Evolution is a study aid designed to help users practice and understand genetics concepts. It does not offer formal certifications upon completion of any modules or quizzes.

## Version history (last 5 releases)

### 3.3 — 2016-03-17

This app has been updated by Apple to display the Apple Watch app icon.

Self Test Quiz upgrade:
- Now able to easily install alternative sets of quiz questions using Quiz Code Tokens. New quizzes and associated tokens can be created freely via web app  http://quizupdate.genevol.com/
-  New Population Genetics quiz (code 'POPGN') delivered standard, in addition to default App quiz (common genetics terms) 

Bug fixes:
- Fixed bug in Cross Simulator caused by ios update (was causing crashes when attempting to change organism,)
- Fixed bug in Breeders Equation Problem Solver (was causing occasional crash when parameters resulted in an R/S value > 1)
- Updated support email address (now support@genevol.com)

### 3.2 — 2015-02-14

Minor patch release:
- Corrected issue with Refresh in Problem Generator obscuring top line of answer in certain circumstances
- Corrected issue in bulk Practice Document creation causing mis-alignments for some problem types
- Included "distance dashes" in Genetic Cross Mapping problem solver between two genes that are linked (where the third gene is un-linked). Distance dashes were previously only included where all three genes were linked)
- Added Information on iPad HD version and link to upgrade

### 3.1 — 2014-08-26

Minor updates:
- In Practice Problem Quick generator, can now tap refresh button to generate a new problem of the same type without leaving the screen
- In Practice Problem Document Creator, now includes a txt version of practice  problems (in addition to pdf version) in email export. Also, page separation added between Questions and Answers
- Cross Simulator re-organized to present Settings screen prior to main cross screen
- Minor adjustments to Population Growth Problem Solver: If growth rate entered, disables entry for birth rate and death rate (and vice versa). Subscripts added for N0 and Nt texts
- Allele Freak: correct issue with Fitness input where regional settings set to Sweden (and some others)
- Allele Freak: Auto-clear setting now defaults to "off" (i.e. allows plotting of multiple graphs)

### 3.0 — 2013-12-05

New "Cross Simulator" module:
- allows simulation of various types of Mendelian crosses. Results are displayed in Punnett Square format.  Genotype/phenotype ratios can be analysed

"Allele Freak" module:
-  added "Inbreeding co-efficient" functionality

 "Problem Central"  module: 
 - added "Population Growth" solver

"Self Test Quiz" module:
- added functionality to allow customised set of quiz terms to be installed
- Randomised terms now allow no repeats (until all terms have been used at least once)

General:
- Various updates for ios7
- Implemented Analytics (opt out option included)
- Several pop up help/info screens added
- Minimum ios version now 6.1

### 2.0 — 2013-09-10

- New "AlleleFreak" module introduced. Tracks and plots the fate of alleles over multiple generations based on relative fitness and genetic drift

- Added link to online manual

- Cross Mapping Problem Solver: Revamped cross mapping simulation engine. Added functionality to predict gene order in addition to phase and linkage. Added functionality to occasionally generate unlinked genes

- Breeder's Equation Problem Solver:  Corrected minor bugs

- Added user-definable settings  for various options relating to Cross Mapping and AlleleFreak

- Genetics Terms: Added functionality to automatically retrieve updates from the cloud when new terms become available

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*