What Is 10?

10 is a daily numbers game. Every day, all players around the world receive the same four digits and one goal: use each number exactly once to build an equation that equals 10. It’s simple to learn, challenging to master, and designed to reward consistency and creative thinking.

Our Mission

10 is built on the idea that small daily challenges strengthen the mind. By giving everyone the same puzzle each day, the game becomes a shared ritual — something you return to, think about, and gradually improve at over time.

How the Game Works

Each day, you’re given four digits. Your task is to use all four — exactly once — along with mathematical operations to create an equation that equals 10. There is always at least one valid solution, but finding it may require patience, experimentation, or a fresh perspective.

Streaks & Progress

Solve the daily puzzle and your streak grows. Miss a day, and it resets. Streaks represent consistency and commitment — not speed or luck. Since everyone plays the same puzzle, streaks are earned on equal ground.

Hints

If you get stuck, hints are available to guide you. Each hint reveals a bit more information, from subtle nudges to near-complete clarity. Hints are optional and can be unlocked individually, letting you decide how much help you want.

Same Puzzle for Everyone

Every player receives the same puzzle each day. There is no randomness, difficulty scaling, or advantage based on experience. Whether you solve it immediately or struggle until the last hint, you’re playing the exact same game as everyone else.

PRO Subscription

PRO unlocks additional features such as unlimited hints and enhanced gameplay tools. PRO is available for $7.99 per week and renews automatically unless canceled. You can cancel anytime through your Apple ID subscription settings. There are no long-term commitments.

Not a Medical or Educational Service

10 is a game designed for entertainment and mental engagement. It is not a medical,

psychological, or educational assessment tool. Any progress or insights you experience are personal and informal.

Built With Care

10 is built by a small team focused on clean design, fair gameplay, and meaningful daily experiences. We believe great games don’t need to be loud — just thoughtful, well-crafted, and worth coming back to.

Contact & Support

Have feedback, questions, or ideas? We’d love to hear from you. 10 grows through its players.

Email support: hello@grizinc.org