Equation of the DayWITH NOVAEN Français

Beta available · iPhone & Android

One equation.
One star set free.

Zero has hidden the stars behind x. Solve equations, decode Nova’s signals and grow your sky, one challenge at a time.

Play on iPhoneDownload for Android

Web version on iPhone · APK on Android
How do I install it?

  • No ads
  • No account needed
  • In English and French
Daily challenge screen: −8 − 9x = 10, Nova, hints and an answer keypad.
Nova, the little star who joins you on your adventure

Ready to free the next one?

Maths you can play

Equations, logic and binary.

A little daily ritual

A new challenge to come back to each day.

A world to return to

Nova, her friends… and the mysterious Zero.

Nova celebrates with you

ONE SMALL VICTORY AT A TIME

Explore. Understand.
And want to come back.

An x becomes more than an abstract letter: there’s a star behind it, waiting to be freed. Nova joins you through challenges and lessons, while Zero sets a time to beat.

Start with one equation. The rest of the sky can wait.

YOUR TURN

Nova is waiting on your phone.

Choose your version. Both doors lead to the same adventure.

On iPhone

Web version · with Safari

Open the iPhone version
  1. Open the link in Safari.
  2. Choose Share → Add to Home Screen.
  3. Then launch the game using its Home Screen icon.

On Android

App · APK file

Download the Android APK
  1. Download the APK using the button above.
  2. Open the file and allow installation from this source if Android asks.
  3. Install the app, then open it. Nova is waiting!

Latest version · Download from GitHub

You’re exploring a beta: it is still evolving, and some details may change.

Before you jump in

How do I update the Android version?

Come back to this same link and install the new version over the previous one, without uninstalling it: your progress is kept.

Received a NOVA-XXXX friend code?

In the app: Leaderboards → Friends → Add a friend.