ShelfLife vs FormulaSignal

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ShelfLife compared with FormulaSignal
Detail	ShelfLife	FormulaSignal
What it does	Know what's expiring before it's too late	Monitor supplement formula changes with dated label history
Stage	MVP	Startup
Founded	Not given	2026
Based in	Not given	US
Pricing model	Freemium	Freemium
Pricing	Pro Weekly: $1.99/week; Pro Monthly: $6.99/month; Pro Quarterly: $14.99/quarter. All plans include 7-day free trial. Annual cost: $59.96 for quarterly billing.	Free Locker: up to 24 saved products with no card required. Signal Pro: $29.99/year (or $3.99/month), includes monitoring for up to 10 products checked daily with email alerts for confirmed changes and monthly Stack Brief.
Key features	Smart alerts before food expires Works offline with device cache and USDA fallback data One-tap JSON/CSV data export on every plan Weekly reports and consumption tracking Recipe matching based on expiring items Home-screen widgets to see expiring items without opening app	Free Locker holds up to 24 supplements with dated labels Daily monitoring of up to 10 products Email alerts when formula changes are confirmed Before You Reorder comparison of saved and current labels 561 product listings from 65 brands Signal Verified labels read and dated twice independently Product Ask feature for ingredient and formula questions Category Ledger for supplement brands REST API and MCP server for developers
What makes it different	Works completely offline with USDA fallback dataset Data ownership guarantee: every plan includes export so you own your inventory	Every number carries a date and source No paid placement and no brand influence Independent and founder-led company
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	16 +2 (up) since last check	5 −1 (down) since last check
Trust Flow (Majestic)	6	6
Citation Flow (Majestic)	25	24
Referring domains (Majestic)	13	22

6 details filled in for both companies.

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