Punnett Helper

Punnett Helper

A Punnett Square App

27 ratings
4 reviews

Archived App (Last seen on 30 Jul 2025)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • March 30, 2020
  • February 1, 2021

Features

Punnett Helper screenshot #1 for iPhone
Punnett Helper screenshot #2 for iPhone
Punnett Helper screenshot #3 for iPhone
Punnett Helper screenshot #4 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

This application simplifies genetic cross predictions by functioning as a Punnett Square. It allows users to quickly determine genotype frequencies for crosses involving up to eight traits. Ideal for students and professionals in genetics, it offers an efficient way to visualize results.

Predicts genotypes of genetic crosses
Handles up to eight traits
Displays Punnett Square grids
Calculates trait frequencies
Supports iPhone and iPad
Show original description

What's New in Punnett Helper

1.2

February 1, 2021

- Improved and more detailed instructions on how to use the app - Minor UI updates

User reviews

Okay

It works, and is pretty simple to use but could be more developed maybe the author could add games to practice to do punett square?

Exactly what I wanted!

I raise rabbits for show and I am an absolute nerd when it comes to all things genetics, regardless of species. I’m no newbie to Punnett squares, I first got into them when I was breeding betta fish for my science fair project, but for my rabbits I got tired of trying to calculate in my head or, if I wanted to go further, to write a massive square on a sheet of paper in order to know the chances for certain colors.

This app was exactly what I was wanting: a Punnett square generator I can keep in my back pocket, calculated percentages for the potential genes, and an easy to use app without the main focus being on special gene related stuff and how they work. This app is simple and to the point, exactly what I wanted!
Show more

Invalid every time!

I tried putting in aachch x aaamam

aa is non agouti & chch is siamese
aa is non agouti & amam is mink.

It says invalid and I don’t get it! I followed the directions and worthless.

Unclear instructions rendering it useless

The instructions do not provide proper guidelines. I have tried every combo I could think might make this work but it’s just garbage... worthless overall. I’m better off googling how to make a Punnett square and making it my own with pen and paper. They’re really quite simple

Response from developer

Thank you for your feedback. I apologize for the confusion with the instructions. Each field represents the genotype for a parent. The user is supposed to enter the genotype for each parent in each field (ex: 'AabbCc' in one field and 'aaBbcc' in the other field. The intent was to ensure the user enters the same number of traits for each parent, and also to make sure the user enters the same number traits for both parents. For example, entering 'AaBb' for one parent and 'aabb' for the other is acceptable (two traits for each). And something like 'Aa' for one parent and 'AaBb' for the other parent would not be acceptable (two traits for parent one and only one trait for for parent two). The intent was also to ensure that users did not enter special characters for alleles (ex: ?, !, %, etc...). Although it would still technically work, I believed it wouldn't be the best representation for the cross. I appreciate you feedback, and I will include better instructions in the next update. If you have any more questions or concerns, please reach out. You can email for support through the app using the 'Support' button, or you can email punnetthelper@gmail.com. Thank you, and I apologize again for the inconvenience.

Developer apps

FAQ

What is Punnett Helper used for?

Punnett Helper is used to predict the genotypes of genetic crosses between two parents. It helps users visualize and calculate the frequencies of different genotype outcomes for up to eight traits.

How many traits can Punnett Helper handle?

Punnett Helper can handle crosses involving up to eight different traits. It can display Punnett Square grids for up to five trait crosses.

Is Punnett Helper available on Android?

Based on the provided information, Punnett Helper is available for iPhone and iPad. There is no mention of Android support.

What is the age rating for Punnett Helper?

Punnett Helper has an age rating of 4+, making it suitable for a wide range of users, including younger students learning about genetics.

How often is Punnett Helper updated?

The latest version of Punnett Helper is 1.2, which was last updated on February 1, 2021. This indicates a less frequent update schedule.

What do users like about Punnett Helper?

Users appreciate that Punnett Helper is easy to use and quickly provides the desired results for genetic cross predictions. It is considered great for both students and professionals.

Does Punnett Helper have ads?

No, Punnett Helper does not contain advertisements. It is a free application without any ad interruptions.

What is the user rating for Punnett Helper?

Punnett Helper has a strong user rating of 4.3 stars, based on 27 ratings, indicating positive user satisfaction.