Grows with your ninja
Choose Easy, Medium, or Hard mode, from broad categories to a numeric guess. Follow your progress in the game at your own pace.
Coming soon · For ages 16 and up
Notice feelings. Find patterns.
Blood Sugar Ninja is a free glucose guessing game for teens and adults. Notice how you feel, make a guess, and compare it with your CGM reading. Explore patterns in your own saved observations.
For play and reflection. Always use your CGM or meter for care decisions.
How it works
Three small steps, one quiet superpower.
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Pause and feel
Take a moment to notice how you feel. Shaky? Hungry? Totally fine? Tag what you notice. Never delay a needed glucose check.
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Make your guess
Choose Easy, Medium, or Hard mode and make your guess. Use demo mode to explore with sample readings.
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Reveal, together
The number counts up and the ninja reacts kindly. The reading itself is never good or bad — it's information, and noticing it is the skill.
What's inside
Built gentle, on purpose.
A playful moment to notice how you feel, compare a guess, and reflect on your saved observations.
Feelings come first
Tag how you feel: shaky, sweaty, tired, hungry, or fine. Look back at your saved observations and explore possible patterns.
Plays nice with Dexcom
Connect your own compatible Dexcom Share account. Launching in the US. Readings may be delayed or unavailable. Demo mode uses sample readings so you can explore before connecting.
Progress, kindly counted
Review your guessing accuracy and saved history. Scores describe your guesses, not your health or your ability to make treatment decisions.
Why this exists
Inspired by being a parent.
Inspired by my experience as a parent, I created Blood Sugar Ninja to make noticing how you feel more playful. Make a guess, compare it with your CGM reading, and explore your patterns over time.
Ready to start listening?
Blood Sugar Ninja is coming to the US App Store, free. Bring your Dexcom — or just bring curiosity, because demo mode is open to everyone.