iPhone Screenshots


Observation Eagle is a personalised data collection assistant, designed to help quickly gather numerical data and instantly analyse it.

Eagle provides variety of comparison methods, including the very flexible Chi Squared statistical test capable of comparing data groups up to 5 degrees of freedom.

No matter if you are a student, researcher, or a professional; scientific questions emerge in your head on a daily basis. Eagle aims to significantly speed up the process of drawing initial conclusions from virtually any potential research topics. As well as to motivate you to start recording what intrigues you in the world around you.

With eagle in your hand you can:

1. Record your data live, on the go.

2. Get summary of your data proportions and their relationships.

3. View ratio of your data groups.

4. Instantly calculate percentage compositions.

5. Verify mean value of your observations.

6. Assign your data with expected ratios.

7. Perform Chi Squared tests to estimate how significant is the pattern that you are observing.

8. See better the anomalies, Eagle highlights significant (p <= 0.05) probabilities in orange.

9. Stay focused on the data with elegantly dark interface.

10. Never be bothered by the app itself, Eagle is fully native and designed to cooperate with your iPhone at its best.

Never stop asking questions, and who knows, perhaps your initial conclusions will start a new fascinating discovery that eagerly awaits you attention.

What’s New

Version 2.0

Great thanks to all early adopters of Eagle for proving the concept.

In this version we are greatly expanding the comparative functionality of the app.

- Completely overhauled Chi Squared algorithm, compare up to 5 degrees of freedom!
- Full support for iPhone X.

- Polished main interface to house new Chi Squared functionality.
- New mean, ratio, percentage selector.
- Bug fixes

~ Stay curious, find answers, be happy!

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

Taylor04012017 ,

Quick and easy

This app facilitates basic stat results so muuuuch! Moreover, it's so simple and easy to use :3 I love it and strongly recommend it!

Developer Response ,

Hey, thank you for the warm words and support! Soon you will be able to experience a full Chi Squared functionality (with up to 5df and any group ratio relations, yay no more 1:1 only!)

Feel free to stay in touch and email us any suggestions, it is just the beginning!

iammaffyou ,

Great app

I wish there was a way to "share" a data set.


Maciej Necki
20.2 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2018 MYX Systems


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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