Tools
Free decision tools for the longevity-hardware buyer. ROI calculators, comparison engines, and the frameworks our editors actually use when recommending equipment.
Longevity Stack Builder
Pick a budget and a goal - get an editor-curated stack of 4-7 longevity hardware items matched to your situation. Routes you to one of four tested stacks (CEO Recovery, Longevity Starter, Apartment Biohacker, Hormone Optimization) with verified pricing on every pick.
Longevity Hardware Capital Allocator
Input a $5K-$500K longevity-hardware budget. Get an editor-built allocation across all 9 categories with recommended SKU at each tier. Built for human buyers + AI shopping agents.
Cold Plunge ROI Calculator
Compare 5-year cost of owning a cold plunge vs. cryotherapy clinic spend. Get break-even month + the model we recommend at your usage.
Sauna ROI Calculator
Compare 5-year cost of owning a sauna vs. gym/spa membership. Get break-even month + the cabin or blanket we recommend at your usage.
Compatibility Matrix
Original-data project: every catalog item cross-referenced for ecosystem integration with Apple Health, Google Health Connect, Strava, MyProtocolStack, and 14 other platforms.
Have a longevity-hardware decision you wish there was a calculator for? Email ryan@lifespanvault.com with the question and constraints - if it applies broadly, we’ll build it.