Your free trial
Every new DayByDay account starts with a 14-day free trial. You get full access to every feature — no credit card required to start. If you decide DayByDay is not for you, just let the trial expire and you won't be charged anything.
Get the most out of your trial
Log a weigh-in every day, connect Apple Health, and set your goal weight in the first 24 hours. The more data you add in week one, the more useful your trend charts and Coach Notes become.
Plans & pricing
| Plan | Price | Savings |
|---|---|---|
| Monthly | $5.99 / month | — |
| Annual | $59.99 / year | Save ~17% vs monthly |
Both plans include every premium feature. The annual plan works out to about $5.00/month when billed yearly.
What's included in premium
A premium subscription unlocks the full DayByDay experience.
- ✦Weight trend charts — smoothed trend line, weekly stats, and goal date predictions.
- ✦GLP-1 medication tracking — live medication level, dose timeline, titration history, and injection site rotation.
- ✦Sleep analysis — sleep stages breakdown, blood oxygen tracking, O2 Score, and sleep debt.
- ✦O2 Ring support — sync overnight data from your Wellue / Viatom O2 Ring.
- ✦Body composition metrics — BMI, RFM, WHtR, FFMI, and lean mass tracking.
- ✦Coach Notes — personalized insights based on your actual data trends.
- ✦Journey Mode — the beautiful dark sunset theme.
- ✦PDF health reports — formatted summaries you can share with your doctor.
- ✦CSV export — download all your data at any time.
- ✦Unlimited history — no caps on how far back your data goes.
- ✦Milestone celebrations — confetti and recognition for every major win.
- ✦Goal date predictions — estimated arrival dates for upcoming milestones based on your real trend.
Free tier
Without a subscription, you can still log weight entries and view your raw weigh-in history. Premium features (charts, GLP-1, sleep, Coach Notes, and everything above) require an active subscription or trial.
Premium — Everything, for $5.99/month
Weight trends, GLP-1 tracking, sleep analysis, O2 Ring, Coach Notes, PDF reports, and more. Start your 14-day free trial today.
How to subscribe
Subscriptions are purchased directly inside the iPhone app through the Apple App Store. Android support via Google Play is coming soon.
- 1Open DayByDay on your iPhone.
- 2Tap any premium feature or go to Settings → Subscription.
- 3Choose Monthly or Annual.
- 4Confirm with Face ID, Touch ID, or your Apple ID password.
- 5Your subscription starts immediately and is billed through the App Store.
Billing is handled by Apple
DayByDay uses the App Store for all billing. We never see your payment details — all charges, receipts, and billing history live in your Apple ID account.
How to cancel
Because billing goes through the App Store, you cancel through your iPhone's system settings — not inside DayByDay.
- 1On your iPhone, open the Settings app.
- 2Tap your name at the top.
- 3Tap Subscriptions.
- 4Find DayByDay in the list and tap it.
- 5Tap Cancel Subscription and confirm.
Your data is not deleted when you cancel
Canceling your subscription never deletes your data. Everything you've logged stays in your account. If you re-subscribe later, it will all be right there waiting for you.
What happens after you cancel
When you cancel, your premium access continues until the end of the current billing period. After that, premium features are locked — but your account stays open and all your data is preserved.
- ✦Weight logging still works on the free tier.
- ✦Your full history is still saved — you just can't access charts and premium views without a subscription.
- ✦You can re-subscribe at any time to restore full access instantly.
- ✦Your data is never deleted due to a lapsed subscription.
Billing questions & refunds
All payments are processed by Apple through the App Store. DayByDay never handles your payment details directly.
- ✦Refunds — Request refunds directly from Apple at reportaproblem.apple.com. Apple's refund policy applies.
- ✦Billing receipts — Receipts come from Apple via email when your subscription renews.
- ✦Subscription renewal date — Check Settings → Subscription in the app, or tap your name in iPhone Settings → Subscriptions to see your next billing date.
Questions about a charge?
Email support@mydaybyday.app with your account email and a description of the issue. We will get back to you within one business day.
Family Sharing and gifting
Family Sharing and subscription gifting are not currently supported. Each DayByDay account requires its own subscription. If this is something you'd like to see, let us know at support@mydaybyday.app — it helps us prioritize.