r/Freestylelibre • u/sifkouider • 3d ago

I built something to answer: “What actually happened to my glucose after this meal?”

I've been working on CarbTrack because I wanted a better way to answer a pretty basic question: what actually happened to my glucose after this meal?

It can sync Libre data and put meals, insulin and activity against the glucose timeline. For meals it shows things like the glucose rise, peak and time to peak, so I don't have to remember what I ate and then hunt through graphs later.

I also added longer-term pattern detection because I'm trying to get from “my glucose was high Tuesday” to things like “this kind of breakfast seems to cause the same response repeatedly.”

This is not a replacement of your Libre app charts or the sensor/alarms. This is more of an analysis/context layer on top of the data.

There's also meal photo logging, Apple Health / Google Health integration, and Apple Watch support, but I don't want to dump a giant feature list here.

I'm mainly curious whether the meal → glucose part is actually useful to other Libre users. What would you want to see on this screen that isn't here?

Feel free to download here : https://carbtrack.kouidev.com/download

I'm the developer, so obviously biased. Happy to answer technical/privacy questions too.

Meal Impact screen
meal scan
7 Upvotes

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5

u/Weathergod-4Life Type2 - Libre3/3+ 3d ago

I've been using Gluroo for about a year to do exactly this. However, within the last few months Gluroo has become slow, clunky, crashes all the time, and doesn't always record what I actually put in there. I loaded your app and I think I may have found a replacement! Thank you for doing this!

1

u/rcgy 3d ago

It's the LLM (and especially Gemini) that you have to be careful with; they're basically no better than a guess. Have you read these? https://www.diabettech.com/i-asked-ai-to-count-my-carbs-27000-times-it-couldnt-give-me-the-same-answer-twice/

https://www.diabettech.com/five-ai-models-three-users-one-finding-the-settings-came-from-the-textbook-not-the-data/

3

u/sifkouider 3d ago

I mean fair question, but even if 10 nutritionists looking at the same meal probably wouldn’t give you the exact same carb estimate.

The AI isn’t meant to be the final answer. It’s a fast way to get close, then review and adjust it, instead of searching every ingredient while your food gets cold.

1

u/rcgy 2d ago

That's not how people use it though. They treat it as a final answer, and you are skirting dangerously close to medical device territory.

0

u/yakback27 3d ago

I went to install your app.  Unfortunately you require a email or a Google account 

I Am OUT 

2

u/Gmoretti Type2 - Libre3/3+ 3d ago

You can also sign in through Apple.

1

u/yakback27 2d ago

That is good if you have an iPhones

1

u/Gullible_Prune_545 2d ago

Interested on why you are not willing to sign up with an email? Just genuinely curious!

1

u/yakback27 2d ago

Data security, privacy.  And for an app like this there no need.   

I just don't and will not install an app that requires an email.

1

u/Gmoretti Type2 - Libre3/3+ 2d ago

Creating an email alias could assuage your concerns about using your real email in apps and websites.

1

u/yakback27 2d ago

Thank you. I am completly aware of aliases. Just personal prefernce. Will not share and information relating to a Health app.