Frequently asked questions

Stack Almanac is an AI-powered supplement advisory platform that learns what works for your body. It combines a conversational AI advisor (the Almanac Advisor), a personal correlation engine, and bio-individual recommendations to help you optimise your supplement protocol with data.

Most supplement apps are trackers — you log what you take and that's it. Stack Almanac is an advisor first, tracker second. It uses a closed-loop correlation engine that learns from your personal data over time, connecting what you take to how you feel. Recommendations are based on your biology and experience, not generic advice.

The Almanac Advisor is a conversational AI supplement advisor powered by Claude. You can ask it questions about your supplements, interactions, timing, and dosing. It gives personalised guidance based on your health data, goals, and biology — not one-size-fits-all advice.

Stack Almanac is free to use with 5 AI advisor messages per day, exception-based logging, basic Stack Score, and community stacks. The Pro plan costs £7.99 per month and includes 30 Sonnet + 5 Opus AI messages per day, advanced analytics, bio-individual recommendations, and priority support. Every new account starts with a 21-day Pro trial, no credit card required.

Exception-based logging means you only log when something changes — a missed dose, a new supplement, a different time. Your regular stack is assumed taken by default. This removes the burden of daily checklists and makes tracking sustainable long-term.

The Stack Score is a daily 0-100 number reflecting your protocol adherence, consistency, and logged well-being trends. It gives you a single metric to track how well your supplementation is going over time.

The correlation engine connects what you take to how you feel. Over time, it surfaces personal patterns — like whether your sleep quality improves when you take magnesium glycinate in the evening, or whether your energy dips when you skip vitamin D. These insights are unique to you, not generic population data.

Bio-individual means personalised to your unique biology. Stack Almanac accounts for factors like sex-specific dosing, hormonal cycles, individual health metrics, and your personal response patterns when making recommendations. The same supplement can work differently for different people — bio-individuality respects that.

Yes. Your supplement data, health logs, and personal information are stored securely and never sold to third parties. Stack Almanac uses your data only to provide personalised recommendations to you. You can delete your data at any time.

Yes. Stack Almanac is a web application that works on any device with a modern browser. You can also log supplements via Telegram and WhatsApp integration, making it easy to track on the go.

You can track any supplement, vitamin, mineral, herb, or nootropic. Stack Almanac supports specific forms (e.g., Magnesium Glycinate vs Magnesium Citrate), custom dosing, and multiple time blocks throughout the day.

No. Stack Almanac uses exception-based logging — your regular stack is assumed taken unless you say otherwise. You only need to log when something changes, like a missed dose or a new supplement. This makes the system sustainable even for people who hate daily tracking.