A routine, made legible.

Paste your supplements in plain text and AI organises them with doses, forms, and optimal timing. Full setup in 30 seconds.

• Type or paste supplements in any format. The AI handles the structure
• Matched (green), ambiguous (amber), and unmatched items shown for confirmation
• Time blocks auto-assigned by supplement type and context clues
• Instant interaction checking on day one before any logging

Take a photo of any supplement bottle. AI vision identifies the brand, supplement, dose, and form, then adds it to your list in one tap.

• AI vision reads the bottle and extracts the structured data
• Extracts supplement name, brand, dose, form, and ingredients
• Matches against the catalogue for structured data entry
• Works via Telegram photo messages too
• 3 free scans per day on free tier, unlimited on Pro

Only log when something changes: a missed dose, a new supplement, a different time. Your regular supplements are assumed taken by default. No daily checklists.

• Confirmed, assumed, and skipped doses are handled distinctly so partial logging does not pollute your insights
• Daily interaction can be as simple as reading one reminder and doing nothing
• Quick log a one-off supplement from the Today tab in seconds, without adding it to your stack
• Short courses expire on their own: set "taking for 3 days" and it leaves your routine when the time passes
• Retroactive editing up to 48 hours back
• Optional skip reasons for richer data (ran out, stomach issues, forgot)
• Honest logging feeds your personal insights, with uncertain entries treated with appropriate caution

Track supplements, check your schedule, log metrics, and ask the AI advisor, all from the messaging apps you already use. No need to open the app.

• Full command set: view supplements, mark blocks done, skip, log metrics, ask the advisor
• Time-block reminders, morning overviews, and weekly digests
• Exception-based logging works via messaging. No reply means everything was taken
• Photo bottle scanning on Telegram
• Connect in 30 seconds with a 6-digit code

Reminders that work even when the app is closed. Supports iOS Safari, Android, and desktop. Telegram and WhatsApp integration for messaging-based reminders.

• Native push notifications on iOS Safari (17.4+), Android, and desktop browsers
• Time-block reminders: morning, midday, evening, and bedtime
• Telegram and WhatsApp reminders for users who prefer messaging apps
• Smart scheduling: reminders adjust to your actual routine timing
• One-tap confirm or skip directly from the notification

Tell Stack Almanac how many pills or days you have left at any point mid-bottle. No need to wait for the restock flow. Pill counts convert to days automatically using servings-per-dose, and low-stock status plus notifications update instantly.

• New row in the Tracking section of every supplement detail drawer
• Enter pill count or days remaining. Pill count auto-converts using servings-per-dose
• Instantly recalculates depletion date and updates low-stock status
• Restock notifications pick up the new estimate on the next tick
• Works mid-bottle without breaking the running supply history

A conversational AI supplement advisor that knows what you take, how consistently you take it, your health data, and your goals. Not a generic chatbot. Every answer is personalised, and it remembers you between conversations.

• Full personal context in every conversation: your supplements, consistency, outcome trends, health data, interactions, bloodwork, and personal profile
• One-tap Quick Actions: the advisor suggests changes you can apply immediately (add, remove, adjust dose, change timing, start a trial)
• Dynamic conversation starters generated from your actual data triggers
• Remembers you across conversations: mention your diet, a sensitivity, or how a supplement made you feel once, and it carries forward to every future chat
• Follows up on its own recommendations over time
• Cited answers: tap a numbered source marker in any answer to see exactly where a claim comes from
• A daily brief on your Today page: the advisor's single most useful recommendation each day, with one-tap apply or a follow-up question
• Multi-step plans apply in one tap: a single card with Apply all and per-item opt-out, with each step passing the same safety and diet checks as an individual suggestion
• Share any answer as a clean public page: your supplements, profile, and history are never included, and you can stop sharing at any time
• Proactive check-ins: a nudge halfway through a trial, and a keep-move-or-drop question when you keep skipping something, capped at a couple per week and respecting quiet hours
• Ask where to buy something and up to three vetted offers with prices appear under the answer, clearly disclosed and only when you ask

The Almanac Advisor remembers what you tell it and adapts to you over time. Share your diet, your sensitivities, or how a supplement made you feel, and it carries forward to every future conversation. One Memory page shows everything it knows about you, with full control to confirm or remove any of it.

• Remembers across conversations: tell the advisor something once and it applies next time, instead of starting from scratch every chat
• Learns as you talk: when you mention a lasting fact (your diet, caffeine sensitivity, sleep type), a "Memory updated" note appears with one-tap Undo, so nothing is saved behind your back
• Sensitive facts stay pending: anything to do with medications, health background, pregnancy, or allergies is held for you to confirm and never applied silently
• Diet-aware suggestions: set your diet to vegan, vegetarian, or pescatarian and the advisor swaps animal-derived supplements for suitable alternatives, for example algae-based omega-3 instead of fish oil, and explains the swap in plain English
• Sensitivities and timing on your profile: caffeine sensitivity, a stimulant cutoff time the advisor treats as a hard rule, free-form sensitivities, and a log of past reactions it will never re-suggest
• The Memory page: one place that shows every fact the advisor holds, where it came from, and per-row controls to confirm, edit, or remove it

Today shows your monthly supplement spend in GBP and a Save up to figure based on the cheapest GBP source for each item on your stack. It's a free preview of the Almanac Advisor, which on Pro reads the same stack and surfaces what's under-dosed, what's over the upper limit, what's duplicated, and what's working against itself.

• Monthly spend totalled across every supplement on your current stack, priced in GBP
• Save up to figure: the total difference between what you pay now and the cheapest GBP source we know about for each item
• Stays consistent across your devices, so the phone, iPad, and web figures match
• Updates whenever you add, remove, or change a supplement
• Free preview of the clinical Advisor readout, which on Pro flags under-dose, over upper limit, duplicates, and absorption clashes

Compares how you feel on days you take a supplement versus days you skip it, surfacing personal patterns that generic research can't capture.

• Tracks both self-reported well-being and wearable health signals so patterns are grounded in how you actually feel
• Progress page opens with a "What's working" verdict card showing your top correlation in plain English, plus a calendar view and a full weekly summary page with interpretation thresholds for each metric
• Honest logging keeps the patterns reliable: partial or uncertain tracking is handled with appropriate caution rather than treated as fact
• Combination discovery: finds supplement pairs that work better together from your data
• Cycle-phase correlations for menstrual cycle tracking users
• Significance filtering removes noise so only patterns with real signal surface

A daily 0-100 score that reflects how well your supplement routine is working: are you taking everything, at the right time, without conflicts, and consistently?

• Completeness: are the essential supplement categories covered?
• Timing: penalises conflicts like stimulants at night or sedatives in the morning
• Pairings: penalises clashing combinations and rewards pairings that work together
• Consistency: a rolling view of how reliably you follow your routine
• Bio Match: how well your routine fits your individual biology

For Oura Ring users on Pro, Stack Impact compares your wearable metrics from before and after you started each supplement, so you can see what is actually showing up in your data.

• Before and after comparison across sleep, HRV, readiness, steps, and activity
• Clinical cards for supplements with strong RCT evidence in the literature
• Observed cards for supplements with mechanism-based evidence
• Requires a few weeks of data and an Oura Ring connection
• Combined card shown when two supplements overlap on the same metric
• Oura data syncs automatically every night, no manual refresh needed

Photograph a blood test and Stack Almanac reads the markers for you to confirm, row by row, before anything is saved. From then on the Almanac Advisor works from your real numbers: trends across draws, changes since the last result, and flags when a value sits outside its reference range.

• Scan a blood panel with your camera from Settings. Markers are read from the photo, and nothing is saved until you confirm or correct every row
• Only what is printed on the panel is captured. Unclear rows are left for you rather than guessed
• The advisor walks through each marker's trend, the change since your last draw, and which values sit outside their reference range
• Every marker keeps its own history, and you can delete any result at any time
• Informational, never diagnostic: the advisor explains what a marker means and points you to a clinician for medical decisions

Log what you eat in natural language. Stack Almanac detects food-supplement interactions and surfaces timing conflicts automatically.

• Type meals in plain English. AI parses ingredients, portions, and nutrients
• Food-supplement interaction detection: calcium-rich meals blocking iron absorption, grapefruit affecting drug metabolism, and more
• Fasting window tracking with automatic supplement timing adjustments
• Nutrition gap detection highlights where your diet falls short and supplements can help
• Timing conflict alerts when meals interfere with supplement absorption windows

Connect wearable devices to bring in sleep, heart-rate, and activity signals, giving the advisor and insights engine richer data to work with.

• Apple Health, Oura Ring, Whoop, and more
• Automatic daily health data sync
• Connect more than one source and every metric from every tracker shows up in your vitals, side by side
• Health signals feed directly into correlation analysis
• AI advisor references your health data alongside supplement data

Tailored to you, not a hypothetical average adult. Dosing adjusted for your sex, age, and cycle. Diet-aware suggestions. Medication interaction checking.

• Progressive personal profile collection, never a wall of forms. Collected in layers over time
• Sex-specific recommendations: iron dosing, creatine, hormonal timing
• Cycle-aware timing: adjusts supplements by menstrual phase (magnesium/B6 in luteal, iron post-menstruation)
• Genetic variant awareness informs form and dose recommendations
• Diet-aware swaps and gap analysis: vegan, vegetarian, and pescatarian diets swap animal-derived supplements for suitable alternatives (algae omega-3 instead of fish oil) and surface diet-specific gaps (vegan B12/iron/creatine, keto electrolytes)
• Allergies block independently of diet, so a vegan allergic to soy is never offered soy isoflavones
• Medication interaction layer with severity levels and spacing requirements

Evidence-based supplement combinations for specific health goals: focus, sleep, energy, mood, gut health, and more. Includes medication pairings to watch for and swap suggestions.

• Curated routines for common goals: deep sleep, sustained energy, mental clarity, gut repair, stress resilience
• Each routine includes dosing, timing, and evidence summaries
• Medication pairings to watch for flag combinations worth checking before you start
• Swap suggestions when a supplement in a routine conflicts with something you already take
• One-tap adopt: add an entire routine to your supplement list with correct timing

Answer "is this actually doing anything?" with your own data. Start a trial from any supplement's page and Stack Almanac runs a structured with-and-without comparison, then delivers a verdict built from your logs the day the trial ends.

• Test if it's working on every supplement's page starts a trial, with the question prepared for the advisor and shown to you before it is sent
• While a trial runs, the supplement shows its trial status so you always know where things stand
• The advisor checks in at the halfway point to keep the trial on track
• A notification on the day the trial completes links straight to your results
• The verdict compares how you felt with and without the supplement, using the same trust labels as your personal insights
• Completed trials get a Trial Results line in your weekly summary email

A rule engine that places each supplement in the right time of day the moment you add it, then keeps flagging timing issues based on supplement mechanisms, half-lives, and interactions.

• Smart placement at add-time: every way a supplement enters your list (search, bottle scan, onboarding, or adopting a routine) lands in the best time block automatically. Magnesium goes to the evening, fat-soluble vitamins go with a meal, stimulants stay in the morning
• A short note explains where each supplement went and why, with one-tap Change to adjust
• Adopting a whole routine places every supplement sensibly in one step, no manual sorting
• Flags stimulating supplements taken after dinner
• Warns about fat-soluble vitamins taken on empty stomach
• Identifies absorption competition between supplements in the same time block
• Prioritised tips: high, medium, and low urgency
• Multi-block scheduling: one supplement can live in several time blocks, each with its own dose (1g at breakfast, lunch, and dinner instead of 3g once), and the advisor splits larger daily amounts across blocks for you

Curated database of supplement-supplement and supplement-medication pairings with severity levels, evidence grades, and spacing requirements.

• Types: conflict, absorption block, spacing required, absorption boost, pairing boost
• Severity levels: major, moderate, minor
• Evidence grades (A-F) based on systematic reviews, RCTs, cohort studies, case reports
• Medication pairings cross-referenced against your personal profile
• Injected into AI advisor context for every conversation

End-to-end restock experience: push alerts when you're running low, an adherence card showing your actual consistency before you buy, regional pricing from trusted retailers, and a shareable shopping list.

• Push notifications when supplements hit Critical or Depleted status (Pro)
• Adherence card: personal take-rate over 6 weeks shown before the buy CTA
• Adherence-aware days-remaining estimate based on actual logging rate
• Regional geo-routing: offers filtered by country (UK, US, EU, Global)
• Shareable restock list via Web Share API with copy-to-clipboard fallback
• Days-supply capture on scan: quick-select or auto-suggest from label
• Restock section in weekly digest with geo-aware buy links
• Per-supplement restock alert toggle in supplement detail modal
• Tiered low-stock alerts so you have time to reorder before you run out
• Cost comparison across retailers (iHerb, Amazon, Bulk, Thorne, and more)
• Trust-first: affiliate links only on restock, never on new recommendations

Browse, copy, and publish supplement routines. Discover what experienced users take, read reviews, and adopt a routine with one tap.

• Publish your routine as a public template with rationale and goals
• Copy any community routine and customise it for yourself
• Star ratings and detailed reviews per routine
• Creator dashboard with adoption counts and engagement analytics
• Routine versioning: updates notify adopters who can sync changes
• Share a direct link to any community routine or preset and it loads automatically into onboarding, ready to adopt in one tap

A weekly email summarising your supplement routine. What changed, how consistent you were, and a personalised AI insight. Delivered Sunday morning.

• Routine changes: added, removed, adjusted supplements
• Adherence stats with streaks and consistency breakdown
• AI-generated personalised insight from your week's data
• Metric trend arrows for energy, sleep, mood, focus
• GDPR-compliant: explicit opt-in, granular category controls, one-click unsubscribe