Project Euler

Project Euler by Cathal Coffey


(4 stars)


Download for Android

1,000 - 5,000 downloads

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Project Euler is an Android application that syncs with

It has the following unique features.
1) It keeps track of and displays your progress.
2) It has search functionality (show all prime questions?)
3) It allows you to submit a solution to any problem.
4) It auto updates problems that change and even downloads new problems when they become available.
5) Its backward compatible as far as Android 2.2.
6) It has Facebook integration which allows you to post about your success whenever you solve a problem.

I built this app because in my first week of being a Eulerian, I became really addicted to the website. I was trying to plan my next problem each morning during my bus ride to work. I even ended up printing the first 50 questions. So I wrote this app to make it easier for me to keep track of my progress, to help me plan my next problem and to save trees.

Source code available on GitHub:

Tags: project euler.

Recently changed in this version

1) Unsolved problems are now display first, if your using the native ActionBar then you will also see counts next to the problem categories.

2) Stars: You can now star your favorite problems for easy access.

3) Facebook Integration: A new feature called "Claim Your Bragging Rights!" has been added. This lets you post your ProjectEuler solves as status updates.

4) Fixed some bugs.

Comments and ratings for Project Euler
  • (61 stars)

    by Hamilkar Schaß on 09/04/2014

    Does what it says on the tin: provides you with all of the Project Euler problems and offers the possibility of answering them through the App. The only thing I miss is a filter that not only lets you select solved/unsolved problems but also takes into account the achievements (e.g. Fibonacchi / prime / square numbered problems).

  • (61 stars)

    by Ameya Daigavane on 05/02/2014

  • (61 stars)

    by Ian Dimock on 13/11/2013

    Sorting by number of users who've completed a problem would be cool. Also I noticed it ate through my battery with extended use.

  • (61 stars)

    by Alex Demskie on 03/09/2013

    Thanks! This is exactly what I was looking for!

  • (61 stars)

    by Shubham Agrawal on 06/06/2013

    Very good effort

  • (61 stars)

    by Nemina Amarasinghe on 06/05/2013

    Patta aaaa.....

  • (61 stars)

    by alessandro codenotti on 28/03/2013

    Great job, clear and easy to use! There are a couple of possible improvement: -remember the all/solved/unsolved setting upon exit, I like to see them all and I need to switch every time. -add the possibility to see your friends progress -add the possibility to read (and post?) in the thread related to the problem you solved of course the last 2 would be possibile only with an internet connection.

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