Primary-document intelligence
Day91 Labs is an AI Research Studio building innovative tools for data analysis and source verification, to give concrete recommendations for what revenue teams should do next.
Platform overviewThe platform
Walk into any meeting knowing what competitors charge, where they are under pressure, and how your numbers compare — each answer linked to the filing or page it came from.
The platform / five tools
Battlecard
Every pressure flag — slowing growth, rising spend, dropped metrics, leadership exits — pulled from primary filings and flagged against published rules.
Build a battlecardPrice Tracker
Day91 reads live pricing pages and compares them against Internet Archive snapshots. When a plan changes price, disappears, or moves behind a sales contact form — you see the diff, dated to the day.
Track a pricing pageCompare
Growth, margins, sales spend and backlog — yours versus up to five peers, with a median line and a plain-English verdict. Your private numbers never leave the browser.
Open CompareMessage Test
Score your homepage against competitors. See what your whole category says (drop it), what only you say (build on it), and a fix list for your vaguest sentences.
Open Message TestWatchlist
Every material event in the last 7, 30 or 90 days — results, acquisitions, layoffs, executive changes, late filings. Remembers your list between visits.
Open WatchlistWhy Day91
I'm @Pratik. The research pipeline drafts each issue from primary documents. I read every draft, cut more than I keep, and approve what reaches your inbox. Nothing in the brief publishes automatically — not one item.
This is not a feed aggregator or a summary engine. It is primary-document research with a human who decides what matters and what does not. Every week.
Every signal earns its source.
Proof of coverage
The filing or pricing page it came from, one click away. You can check it before you repeat it.
What the company said is kept apart from our arithmetic. Each result says which it is. Explore the data resources and coverage.
Every fix is dated and left visible on the corrections log — original claim included.
Subscribe
Up to ten signals from filings and pricing pages, each linked to its primary source. Free, and every past issue stays open. No account needed — just your email.
Weekly briefs
Published every Monday. Human-approved before it ships. Full archive open.