For people with diabetes and the people who care for them
Diabetes is a lot to carry. Let Tsumo take some of the burden.
Tsumo is a small wearable in development, designed to help you see what happened around a glucose change.
It notices your meals and meds, reminds you at the right moment, and spots patterns to discuss with your care team. Almost nothing to log, no photos to take.
Free, no card, no obligation. Founding members get 20% off the subscription. Details
It sees and hears what matters, but it’s designed to keep only what’s needed, and to keep it private. Our privacy goals
Tsumo is in development and not for sale yet. This site helps us gauge interest and gather feedback. Product images are concept renders and concept images made with AI, not photos of a working device.
Through Tsumo’s eyes
Lunch with a friend. Nothing to log.
What it would see, hear and work out, in 20 seconds.
Working it out
That restaurant’s menu online · salmon grain bowl
Diet cola · 0 g carbs
About 52 g carbs · 31 g protein · 18 g fat
Salmon and oil · moderate absorption
Meal started · 12:44
First bites seen
Time to speak up
Tsumo12:44You've started eating. Time to check if you need to bolus.
About 52 g carbs · moderate absorptionConcept film made with AI video. Numbers are examples. Reminder shown to people who use insulin; Tsumo never doses.
What it does
Four things it’s designed to take off your mind.
Tsumo works in the background. No photos to take, almost nothing to log.
Notices your meals
It sees what’s on your plate and hears details like “dressing on the side”, then estimates carbs with context.
Lunch noticed: salmon bowl, about 52 g carbs. Moderate, the oil slows the rise.
Speaks up when it matters
When a meal starts, when meds are due, and before a refill runs out. The decisions stay yours.
You’ve started eating. Time to check if you need to bolus.Shown only if you use insulin. Tsumo never doses.
Keeps your people in the loop
Meals, meds and refills, shared only with the people you choose.
Evening meds seen at 8:02 PM. Shared with the people you chose.
Spots patterns
It looks at what happened before and after a glucose change, like meals, meds, sleep and activity, and finds patterns to discuss with your care team.
A pattern to discuss with your care team: later dinners, higher mornings.
Concept examples Numbers are illustrative. See how it works
For people with diabetes, and the people who care for them.
Every type of diabetes, with or without insulin. Parents, partners and nurses too.
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See how it works
Designed to notice meals and meds, remind you at the right moment, and show what happened around a glucose change.
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Explore ways to wear it
A pin or a pendant, with a finish you can swap. Concept designs, not working hardware.
- Help shape Tsumo Tell us in a few words. Optional, and separate from the founding list.
Caring for someone with diabetes? See how Tsumo is designed to keep you in the loop
Card images are a concept render and a frame from a concept film made with AI.
A camera you wear?
Built to be trusted around your table.
To notice a meal, Tsumo has to see what’s in front of you. So privacy is one of the first decisions we make, not the last.
You control capture
Designed so you can pause it whenever you choose.
Snapshots, not video
Selected snapshots tied to meals and meds, so you can see what an estimate was based on.
Context, not recordings
Designed to listen for details like “dressing on the side” and keep a short note, not the audio.
You choose who sees what
Sharing is planned to be optional, with the people you pick, and you can change it anytime.
Design goals for a product in development, not features you can use today. We’ll explain what’s kept and for how long, and you’d be able to ask us to delete entries and photos. How this website handles your information
Why Tsumo exists
“I’ve lived with diabetes since I was five. The estimate was never the hard part. Remembering was.”
Nicole paid for a photo carb app and never used it properly, not even once. By the time she remembered, she was halfway through the meal. Tsumo is what she wanted for herself, and for caregivers like her parents.
Nicole Nigri, founder
Built by an IP lawyer qualified in Texas and Brazil, with a master’s from Harvard Law School, focused on data privacy. So we take your privacy seriously.
Read Nicole’s storyFounding list
Your second eyes, ears and brain. So yours can stay on what you want.
Join for updates, early looks and the first chance to order. Free, with no card and no obligation.
Proposed pricing: $199 for the wearable, then $9.99 a month or $99 a year. Founding members get 20% off their plan. Nothing to pay now. See pricing
Want to test early prototypes? Apply for the alpha test. Just want the app?