
Free
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About
Meet Lenny, a brave little sea turtle learning to navigate life with Type 1 Diabetes.
Lenny: Type 1 Adventures is a child-friendly educational and emotional-support app designed to help children learn, prepare, express their feelings, and build confidence while living with Type 1 Diabetes.
LEARN WITH LENNY
Explore simple, age-appropriate lessons about Type 1 Diabetes, insulin, blood sugar, checking numbers, and everyday diabetes life.
LENNY'S ADVENTURES
Join Lenny through familiar childhood experiences such as school, birthday parties, sports, and other adventures while learning about preparation, confidence, and asking trusted grown-ups for help.
MY T1D TOOLKIT
Use practical checklists for school, sports, sleepovers, and everyday activities to help families and children think about being prepared.
FEELINGS WITH LENNY
Children can check in with how they're feeling—from worried or frustrated to brave or tired—and learn that it's okay to talk about the emotional side of living with Type 1 Diabetes.
BRAVERY HEADQUARTERS
Celebrate learning, preparation, participation, and everyday brave moments with Lenny's positive reward system.
PARENTS' CORNER
A protected parent area provides family-controlled settings, preparedness information, feelings history, progress information, privacy controls, and space for family-entered emergency information.
Lenny is designed as an educational and supportive companion for children and families. The app does not calculate insulin doses, correction factors, glucose targets, or provide individualized medical diagnosis or treatment recommendations. Diabetes care decisions should follow the child's established care plan and healthcare team.
Live Brave. Live Strong. Never Give Up.
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What's New in Lenny
1.2
September 24, 2026
Lenny’s adventures just got even bigger! • Introducing Lenny’s Reef Rescue, a new interactive game • Explore the Coral Reef, Kelp Forest, and Sunken Treasure Cove • Collect Bravery Shells and help Lenny reach Ocell • Avoid underwater obstacles and hazards • Unlock new levels as you complete each adventure • Earn Bravery Shell rewards for completing levels • Game progress is saved automatically • Updated artwork and character improvements • Performance, stability, and accessibility improvements
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