1.1 Build the habit Latest June 20, 2026

An engagement update that closes the habit loop. CalmTide 1.0 read your stress for you; 1.1 gives you something to do each day — a five-second check-in and a gentle streak — alongside a sharper Today, Week, and Insights, and a full accessibility, performance, and polish pass.

NewDaily check-in. Take five seconds to log how you feel — Drained, Low, Okay, Good, or Great — and tag what shaped it: caffeine, alcohol, poor sleep, a hard workout, work stress, illness, travel, or a late meal. It saves the moment you tap, with light haptics — no form, no Save button. Your check-ins sit alongside the passive signals from Apple Health so the daily picture is yours, not just your watch's.
NewStreaks, the kind way. A running streak now lives on the check-in card, with a small celebration when you beat your own best. Miss a day and nothing breaks and nothing scolds you — the streak is there to pull you back, not to punish.
NewA clearer Today. Recovery-signal tiles now carry a 14-day sparkline and a trend-vs-your-baseline badge — "above usual," "below usual," or "typical" — so each number reads in context, and the "Why this score" explainer sits cleanly below the ring as a separate, tappable caption.
NewSharper stats. The Weekly grid gains a direction-aware week-over-week trend on every stat, readiness now names its main driver ("HRV 14% above your baseline"), and trend badges are unified across Today, Week, and Insights.
PolishAccessibility pass. Larger tap targets (44pt+) and VoiceOver labels across the check-in and stat controls — each recovery tile now reads as one element ("metric, value, trend") and readiness reads as a single clear sentence.
PolishFaster & smoother. Bounded streak fetches, parallelized week builds, and Equatable charts that skip needless redraws — the Today and Insights tabs build quicker and scroll cleaner.
PolishLayout resilience. Dynamic Type and narrow-viewport hardening so large text and smaller screens no longer clip the check-in tags, readiness prescription, or forecast pills.
FixSteadier trends. Trend-baseline guards and a readiness data floor (now requiring enough samples) keep a sparse week from reading as a dramatic swing, plus de-duplicated on-device storage under the hood.

1.0 Launch June 19, 2026

The first release — turning the HRV, sleep, and workout data your Apple Watch already collects into a single weekly read on your stress baseline, and a trend you can actually move.

NewHPA Balance Score. A single weekly 0–100 read on how your week is trending, modelled from HRV, sleep, training load, and breathwork against published exercise-and-recovery research — shown as a ring you can check at a glance.
NewDaily cortisol read. A today view that estimates whether your cortisol is likely low, moderate, elevated, or high, with one smart recommendation and a five-item daily protocol: breathwork, Zone 2 on track, 7+ hours sleep, no stacked hard sessions, and 15+ minutes of morning sun.
New8-week baseline trend. The flagship view — your estimated baseline cortisol charted against an optimal trajectory, with annotated spikes and milestone markers like "HRV improved." It's the anxiety-relevant signal most health apps never surface.
NewBuilt from Apple Health. Reads HRV (SDNN), sleep architecture, workouts and intensity zones, resting and walking heart rate, respiratory rate, blood oxygen, VO₂ max, and logged mindful minutes — and weights each by its research-backed cortisol effect.
NewGuided breathwork timer. A built-in timer for the five-minutes-a-day practice that has a measurable cortisol effect, with logged sessions credited toward your score.
ProApple Watch app & Home Screen widgets. Your HPA score and today's recommendation on your wrist, plus a Today-summary widget and an HPA-ring widget that keep your trend one glance away.
ProDeeper Insights. Pro unlocks extended history, the cortisol forecast, and advanced correlations — HRV history, sleep-architecture breakdowns, a sun-to-next-day-HRV correlation, noise-exposure trends, and VO₂ max as a long-term HPA-health proxy.
NewSolGlow connection. Install SolGlow too and the apps share a secure on-device container — no servers, no accounts — so morning-sun minutes and your Cortisol Awakening Response feed CalmTide's score, and a new "Sun → next-day HRV" correlation appears in Insights.
FreeSmart notifications. An 8am check-in, post-hard-workout recovery nudges, a Sunday weekly summary, and an alert when two hard sessions stack up.
FreePrivate by design. Everything is computed on-device from Apple Health. No account, no analytics, and no health data ever leaves your phone. Permissions are staged — CalmTide asks for the essentials on day one and requests deeper metrics only when you explore the features that use them.
FreeHonest estimates. Scores are clearly labelled as estimates from published research, not a clinical cortisol measurement — CalmTide tells you what it can and can't know.

Get every update automatically

CalmTide is free to download and use. CalmTide Pro unlocks the deeper Insights, full history, cortisol forecast, widgets, and the Apple Watch app — $4.99/month or $29.99/year, each with a 1-month free trial, or a one-time $19.99 lifetime unlock.

Download on theApp Store

Dates reflect each version's release. Feature availability marked "Pro" requires CalmTide Pro; everything else is free for all users. CalmTide provides wellness estimates based on published exercise-physiology research — it is not a medical device and should not be used to diagnose or treat any condition.