16:20 · it notices
A question, only when it matters
When a rise has nothing logged beside it, glyso asks once, in the app — one tap to answer. No food diary: type what you ate in your own words or snap a photo, and glyso works out the rest.
Beta starts Sunday 1 November
Your CGM tells you what.glyso tells you why.
See why your sugar moves, from the Libre or Dexcom you already wear.
How it works
Three moments. Seconds of effort.
glyso isn't a logbook you fill in forever. It reads your line, speaks when it has something worth saying, and asks about a rise only when nothing's logged beside it.
about 2 hours later · it measures
Your meal, measured
How far it rose, when it settled — and how it compares with the same meal on your own other days, with the count behind it.
next morning · it remembers
Your night, waiting when you wake
The whole night in one look — your curve, your pulse through it, how long you slept — in a sentence before you've had coffee.
Today
Everything that moved you, on one line.
Your glucose sits in your own range band, with meals, doses, movement and sleep drawn on the same timeline — so the cause is right there next to the rise.
- Meals & dosesNo food diary. Type what you ate in your own words or snap a photo, and glyso works out the rest. Insulin is one number, asked with the meal.
- Movement & sleepFrom your watch or strap, drawn on the same line.
- Your logSearch "pasta" and see every pasta you've had — and the average curve across them.
The real app — not a mockup.
Ask glyso
Ask about your glucose. Get your own answer.
The glyso tab answers questions from your own record — the last year of your readings, meals, doses, walks and nights. glyso pulls the figures from your record with its own code; the AI reads them and writes the answer.
- What does pizza do to me?
- Does rice do more to me than bread?
- What does a walk after dinner do?
- Why did last night run high?
Your record only. Never a dose, never a forecast of where your line is heading. Opens once it has about 7 days of your data.
Connects to
Works with what you already wear.
Connect your CGM in one to three minutes. Add a watch or a strap and glyso can explain the days a meal can't — the short night, the long walk, the stressful week.
FreeStyle Libre
Glucose readings
Libre 3 · Libre 2 PlusDexcom
Glucose readings
G7 · G6 · ONE+ · ONEApple Watch
Steps, sleep, pulse
via Apple HealthWHOOP
Sleep and recovery
rolling outFitbit
Steps, sleep, pulse
via Apple Healthglyso only reads from your devices — it never writes back — and your personal data is never sold. Meals and insulin come from you, with no food diary: type what you ate in your own words or snap a photo. Oura is planned.
Trends & your score
Your weeks, measured honestly.
Pure arithmetic — no AI writes a word of it. Time in range each day against your range and the NICE range, and an estimated A1c. Your glyso score unlocks after 7 days.
In range, each day
Today's bar stays a different shade until the day is done — drawn, not counted.
Your week in review
A Sunday story you tap through, ending in a card you can share.
How glyso compares
Three ways to read the same line.
| Feature | glyso | Your CGM app | Logbook apps |
|---|---|---|---|
| Why it moved | Each rise and dip paired with its likely cause — the meal, the walk, the night. | Not its job — it shows the number. | You log; it stores. The why is left to you. |
| Your own days, compared | The same lunch across weeks: "sharper than your typical rise, measured against 12 of your own." | One day at a time. | Charts — you do the comparing. |
| Questions | Ask in plain words; answered from your own record. | No. | No. |
| Alarms | No — deliberately. That's your CGM's job. | Yes — highs, lows, rising fast. | No. |
Your CGM app stays essential — keep its alerts on. glyso works alongside it, never instead of it.
Pricing
Free while it's in beta. Then one subscription, everything in it.
£0 during the beta
The beta runs for three weeks from Sunday 1 November, free for its 30 testers. Every place has gone, so the mailing list hears first when glyso opens to everyone.
Once the beta ends, glyso is a paid app on the App Store, with no free trial and no free tier. Both plans include every feature.
Monthly
£11.99/ month
Billed every month through the App Store. Cancel any month.
Best value · save 30%
Yearly
£99.99/ year
£8.33 a month, billed yearly through the App Store.
Both plans include everything: Today, your log, the glyso score, Trends and Ask glyso.
How the price compares
| Service | Published price | What that price covers |
|---|---|---|
| glyso | £11.99/month or £99.99/year | The explanation layer on the CGM you already wear for your diabetes. |
| ZOE | £9.99/month, after £299 upfront | Gut and blood testing plus food scoring; the upfront test is not optional. |
| Levels | $499/year (about $42/month) | Metabolic coaching; sensors billed separately, around $89 a shipment. |
| Nutrisense | From $179/month, or $39 app-only | Coaching with sensors supplied; the cheaper tier drops the sensors. |
| Signos | $129–$449/month | A weight-loss programme with sensors supplied; price falls with longer lock-in. |
Prices as published by each service in August 2026. Deliberately not like-for-like: those services are built for weight loss or general metabolic health, most bundle a sensor, and the dollar prices are not UK prices. glyso does not sell sensors — you already wear one, prescribed for your diabetes.
The beta
Thirty people get in first. They shape what everyone else gets.
glyso is being built with people who live with diabetes, not just for them. The first thirty use it before anyone else, tell us where it's wrong, and help decide what it explains next, with a direct line to the founder the whole way.
All thirty places have gone. The next way in is the App Store launch, and the mailing list hears about it first.
"Built by someone with Type 1 diabetes who was tired of seeing countless numbers — and never knowing the 'so what'."
— the person building glyso
Questions
The honest answers.
What is glyso?
glyso is a glucose coaching app for Type 1 and Type 2 diabetes. It reads your continuous glucose monitor (CGM), links each rise and dip to its likely cause — the meal, the walk, the night — and explains it in plain words.
Is it a medical device?
No. glyso explains what already happened. It doesn't diagnose or treat anything, it doesn't raise alarms, and it never gives insulin dosing advice. Real-time alerts stay your CGM app's job — keep those alerts on.
Which sensors and devices work?
FreeStyle Libre 3 and Libre 2 Plus, and Dexcom G7, G6, ONE+, ONE and G7 15 Day (Stelo can't connect yet — Dexcom keeps it off Share). Alongside your CGM, glyso can read Apple Health (including Apple Watch), WHOOP and Fitbit for sleep, movement and heart rate. glyso is for CGM wearers — there's no fingerstick or manual glucose entry.
What is Ask glyso?
The chat tab. Ask "what does pizza do to me?" or "why did last night run high?" and it answers from your own record. glyso pulls the figures from your record with its own code; the AI reads them and writes the answer. It never gives a dose, never forecasts where your line is heading, and answers "can I eat this now?" with what that food did before — the decision stays yours. It opens once it has about 7 days of your data.
What does it cost?
Nothing during the three-week beta — that's your chance to see if it helps. After it, glyso is £11.99 a month or £99.99 a year on the App Store, with every feature included. There's no free trial and no free tier after the beta.
When can I use it?
The beta starts on Sunday 1 November and runs for three weeks with 30 testers, Type 1 and Type 2. Every place has gone. Join the mailing list and you'll be first to hear when glyso opens to everyone on the App Store.
What happens to my data?
We never sell your personal data — not to anyone, not ever. No ad trackers, no sharing with insurers or employers, and we don't let anyone train third-party AI models on it. Aggregated, de-identified data helps improve glyso; whether your de-identified data also joins our wider research set is your choice, asked once, and you can say no. The full detail is in the privacy notice.
Stay in touch
One less thing on your mind.
Our beta starts on Sunday 1 November and its 30 places are full. Join the mailing list and you'll hear first when glyso opens to everyone.
Works withAn iPhone and a FreeStyle Libre or Dexcom.
NextThe App Store launch, after the three-week beta.
From usglyso news and launch updates. Nothing else.