Lab Door
Keep your supplements, dated labels, and formula history in one free Locker.
Foam
Open repositories in a VSCode environment in your browser
Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | formulasignal.com | github.surf |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.
FormulaSignal keeps a dated record of the supplements you care about. Build a free Locker to organize your rotation, products you are considering, and products you used before. Covered products include dated label references, source links and formula history. Compare what a product declares now...
No description of GitHub Surf yet.
What each product offers, as listed by its team.
Possible disadvantages
An editorial look at what each product does well and who it suits.
No analysis of FormulaSignal yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.
As answered by people managing FormulaSignal and GitHub Surf.
FormulaSignal's answer
FormulaSignal keeps dated copies of supplement labels published by brands and compares declared amounts line by line, so you can see when a formula quietly changed. It tracks 1,249 products from 152 brands (and growing), and every check is shown, failed ones included.
FormulaSignal's answer
Lab-testing and review sites tell you what a product contained when they tested or reviewed it. FormulaSignal watches the label over time and emails you when a confirmed change hits a product you take, so you know before you reorder. The Locker is free for 3 supplements.
FormulaSignal's answer
People who take supplements regularly, like pre-workout, protein, fish oil and multivitamins, and want to know if the formula they rely on has changed before they buy again.
FormulaSignal's answer
TypeScript, Cloudflare Workers
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