


Take Control of Your Blood Sugar With AI-Powered Insights.
More freedom. Better control.
Subseven helps you optimize blood glucose levels with real-time insights. Make informed decisions about insulin, meals, and workouts so you can live with confidence, freedom, and peace of mind.
"Subseven was built for one purpose: to help Type 1 Diabetics live longer, healthier, more confident lives."

Chris Putsch, Founder, Type 1 Diabetic
FEATURES
Let your data work for you
It's time to make sense of it all, and then put it to good use.
AI-Powered Insights
Everyone is different. Unlock hidden patterns and achieve profound understanding.
AI-Powered Insights
Everyone is different. Unlock hidden patterns and achieve profound understanding.
AI-Powered Insights
Everyone is different. Unlock hidden patterns and achieve profound understanding.
Meaningful Analytics
Access and analyze your data in a way you never have before.
Meaningful Analytics
Access and analyze your data in a way you never have before.
Meaningful Analytics
Access and analyze your data in a way you never have before.
Easy Event Logging
Because we all know if it's a pain to log, it's not happening.
Easy Event Logging
Because we all know if it's a pain to log, it's not happening.
Easy Event Logging
Because we all know if it's a pain to log, it's not happening.
BENEFITS
More Clarity. More Control. More Confidence.
More Clarity. More Control. More Confidence.
Because Every Choice Adds Up.
Stay ahead
Predict and prevent spikes before they happen.
Stay ahead
Predict and prevent spikes before they happen.
Stay ahead
Predict and prevent spikes before they happen.
Smarter Choices
Eat, move, and sleep smarter without second-guessing.
Smarter Choices
Eat, move, and sleep smarter without second-guessing.
Smarter Choices
Eat, move, and sleep smarter without second-guessing.
More stability
Experience better energy, focus, and performance.
More stability
Experience better energy, focus, and performance.
More stability
Experience better energy, focus, and performance.
Information interpreted
Turn your raw data into true understanding and action.
Information interpreted
Turn your raw data into true understanding and action.
Information interpreted
Turn your raw data into true understanding and action.
Your health, optimized
More wisdom leads to healthier outcomes overall, not just T1D related.
Your health, optimized
More wisdom leads to healthier outcomes overall, not just T1D related.
Your health, optimized
More wisdom leads to healthier outcomes overall, not just T1D related.
Better decisions
Every choice adds up. Live longer, feel better, be happier.
Better decisions
Every choice adds up. Live longer, feel better, be happier.
Better decisions
Every choice adds up. Live longer, feel better, be happier.
COMPARISON
Why subseven is different
Subseven tackles Type 1 diabetes from first principles, questioning assumptions and rebuilding solutions from the ground up.
Comprehensive Event logging
Complete Macronutrient profile analysis
Insulin-to-Carb Ratio calculated based on data
AI-Driven pattern and insight detection
AI logging (the real winner)
Others
Meal and Insulin only logging
Carb only analysis
Insulin-to-Carb Ratio guess-and-checked
Pages of cryptic data that no one looks at
Only manual logging
Letter from the founder
A letter to you
In a way, subseven happened by accident. As someone with Type 1 Diabetes, I was frustrated. I followed all the rules, yet my results were unpredictable. We know blood sugar isn’t just about carbs and insulin. Exercise, sleep, timing, stress, hormones, other macros, and more can play a huge role, but the tools available don’t do much to make sense of it all. I had always been told to focus on carbs, BG, and insulin on board. I had always been told that these other factors mentioned above could effect my numbers, but to what degree? Why can't these other things be quantified, at least to a greater degree than they currently are? Why aren't we looking at these things more holistically? Why is this a game of perpetual guess-and-check? It's 2025, why can't we do better? It got to a point where I was fed up.So I started to look at things just a little bit differently. Using the prototype that would become the basis for subseven, I discovered patterns I had never noticed. I began to think about the relationship between my carb and insulin intake over a period of days and weeks, not minutes and hours. I formed this realization that, while the T1D game is infinitely complex, with a little bit more knowledge, we can simplify it significantly. A little bit more control can have a massive impact.Here are some insights I discovered about myself using the subseven prototype: Eating peanuts, despite being low carb, causes long lasting highs hours later. 34% of my total carb intake is from treating lows. 33% of my total carb intake is from snacks. Running without bolusing at all earlier in the day makes my BG actually rise during the run, but if I had taken any amount of insulin earlier in the day, even if I ate the right amount of carbs, (or even double the amount!), the same run would cause my BG to dive bomb (so running likely causes a serious short-term increase in insulin sensitivity, but without any bolus insulin to be sensitive to, other factors typically associated with an increase in BG during exercise, like adrenaline and cortisol, take over and shoot my BG up). Intermittent fasting keeps me steady while fasting, but once I break the fast I am very susceptible to a high event in the hours following (possibly due to the fast temporarily affecting my insulin sensitivity?). I thought my insulin-to-carb ratio was 10, but it's actually 7.2. Even after 18 years with T1D, I still miscount carbs more often than I realize. By tracking and analyzing my data in this slightly different way, I lowered my A1C from 6.6 to 5.9 in just three months. I now average 1.1 low event per day vs 2.5, and 1.2 high events vs 3.3. Beyond the numbers, I just feel better. I can leave the house, work out, eat out, and just live my life with complete confidence. Don't be confused, this isn't a cure-all. If you came for a magic pill, this isn't it. Subseven won't allow you to eat like crap. You will still need to work at it. I still run into issues, and always will. What subseven has done for me and could do for you, is it has taught me things about my T1D that I never knew, which has made it so much easier to live with. If you're feeling stuck, overwhelmed, or just looking for a better way to understand your own patterns, I'm sure subseven can give you the same insight, clarity and confidence it has given me. To your health, Chris
Letter from the founder
A letter to you
In a way, subseven happened by accident. As someone with Type 1 Diabetes, I was frustrated. I followed all the rules, yet my results were unpredictable. We know blood sugar isn’t just about carbs and insulin. Exercise, sleep, timing, stress, hormones, other macros, and more can play a huge role, but the tools available don’t do much to make sense of it all. I had always been told to focus on carbs, BG, and insulin on board. I had always been told that these other factors mentioned above could effect my numbers, but to what degree? Why can't these other things be quantified, at least to a greater degree than they currently are? Why aren't we looking at these things more holistically? Why is this a game of perpetual guess-and-check? It's 2025, why can't we do better? It got to a point where I was fed up.So I started to look at things just a little bit differently. Using the prototype that would become the basis for subseven, I discovered patterns I had never noticed. I began to think about the relationship between my carb and insulin intake over a period of days and weeks, not minutes and hours. I formed this realization that, while the T1D game is infinitely complex, with a little bit more knowledge, we can simplify it significantly. A little bit more control can have a massive impact.Here are some insights I discovered about myself using the subseven prototype: Eating peanuts, despite being low carb, causes long lasting highs hours later. 34% of my total carb intake is from treating lows. 33% of my total carb intake is from snacks. Running without bolusing at all earlier in the day makes my BG actually rise during the run, but if I had taken any amount of insulin earlier in the day, even if I ate the right amount of carbs, (or even double the amount!), the same run would cause my BG to dive bomb (so running likely causes a serious short-term increase in insulin sensitivity, but without any bolus insulin to be sensitive to, other factors typically associated with an increase in BG during exercise, like adrenaline and cortisol, take over and shoot my BG up). Intermittent fasting keeps me steady while fasting, but once I break the fast I am very susceptible to a high event in the hours following (possibly due to the fast temporarily affecting my insulin sensitivity?). I thought my insulin-to-carb ratio was 10, but it's actually 7.2. Even after 18 years with T1D, I still miscount carbs more often than I realize. By tracking and analyzing my data in this slightly different way, I lowered my A1C from 6.6 to 5.9 in just three months. I now average 1.1 low event per day vs 2.5, and 1.2 high events vs 3.3. Beyond the numbers, I just feel better. I can leave the house, work out, eat out, and just live my life with complete confidence. Don't be confused, this isn't a cure-all. If you came for a magic pill, this isn't it. Subseven won't allow you to eat like crap. You will still need to work at it. I still run into issues, and always will. What subseven has done for me and could do for you, is it has taught me things about my T1D that I never knew, which has made it so much easier to live with. If you're feeling stuck, overwhelmed, or just looking for a better way to understand your own patterns, I'm sure subseven can give you the same insight, clarity and confidence it has given me. To your health, Chris
Letter from the founder
A letter to you
Achieve the ultimate confidence with subseven
and unlock a long, healthy life.
Achieve the ultimate confidence with subseven
and unlock a long, healthy life.
Achieve the ultimate confidence with subseven
and unlock a long, healthy life.