Numbers on their own can be hard to read — is a flat week good or bad? Did anything actually change? The Insights tab answers that for you. This is where Dayo lives.
Dayo is your AI coach (powered by Anthropic Claude). Dayo doesn't lecture and doesn't make things up — it reads your real data and writes you a short, warm, plain-language note about what's happening and what to nudge next. Every claim is grounded in a real fact from your own logs. A companion, not a doctor.
Your daily read
At the top is Dayo's daily read — a quick interpretation of where you are right now, with Body, Pace, and Fuel pills you can tap to switch the lens. It might say something like “Your sleep's solid and you're burning fat while building muscle — that's the goal.” It's the same friendly voice you see on the Today tab, just with more room to explain itself.
Your Story · This Week's Read
Below the daily read is Your Story — Dayo's weekly interpretation, broken into a few focused cards:
- ✦Body & Composition — your body fat, weight, and the bigger picture. For example: “You've gained muscle while losing fat. That's the kind of loss that holds.”
- ✦Weight-Loss Pace — how fast the scale is actually moving, against a healthy 1–2 lbs/week target, with a plain read on whether that pace is sustainable.
- ✦Fuel — how your eating and hydration are supporting (or working against) the rest. On a GLP-1, this is where Dayo flags things like light hydration that can make nausea worse.
A plateau is not a failure
When the scale holds still, Dayo says so kindly — “Holding steady ⚠️” — and looks past the number to what else is happening. Muscle gained, fat lost, inches off your waist: those count even when the scale doesn't move. Some weeks the scale lies; the trend tells the truth.
The bookmark: flag it for your appointment 🔖
Here's the part people love. As you read your story, you'll spot something you want to raise with your doctor — a plateau, a shift in body composition, a side-effect pattern. Tap the 🔖 bookmark on that insight card to flag it for your next appointment.
Anything you flag flows automatically into your Health Report PDF — alongside your medication summary and any symptoms you've logged. You notice it once; the app remembers it for you. No copying, no re-typing, nothing forgotten in the waiting room.
Heading to an appointment?
Tap the 🔖 bookmark on any insight to flag it, and it lands automatically in your Health Report PDF — your weight trend, GLP-1 doses, and flagged notes, ready to share. See Reports & your doctor.
Dayo is part of Core
Dayo's coaching — the daily read and your weekly Story — is part of DayByDay Core, and it's included in your 14-day free trial. If you also use the Nutrition module, Plus unlocks nutrition-aware coaching: Dayo starts connecting your protein to muscle, your fiber to GI side effects, and your energy balance to the scale.
Premium — Meet Dayo with Core
Unlock Dayo's daily read and your weekly Story — a warm, plain-language interpretation of your own data, with bookmark-to-flag built in. Free for 14 days.
Where does Dayo get its information?✦
Only from what you log and sync — your weight, sleep, doses, activity, body composition, and (on Plus) nutrition. Dayo never invents a number; every insight points back to a real fact in your own data.
How often does my story update?✦
The daily read refreshes each morning, and the weekly Story settles into a stable read you can revisit through the week. The more consistently you log, the sharper and more personal it gets.