Quartr gives professionals powerful access to documents, and the table below compares AIR with it on those terms. AIR starts where the documents end: every night after the US close, its engine reads the filings of the ~1,800 small and mid-cap US companies it follows and publishes what each one changed in AIR's read. It is free to read, with a public track record.
Side by side
Quartr facts read on 31 Oct 2026 from the pages linked on each card.
Who it's for
AIR
Anyone researching US small and mid-cap companies. Reading AIR is free; the only paid plans are for the AIR API.
Quartr
“Quartr Pro is the AI research partner for finance professionals”.
Source: quartr.com/products/quartr-pro · read 31 Oct 2026Free plan
AIR
The Radar, the Shortlist and every company page are free to read.
Quartr
“Yes, the Quartr mobile app is free on both iOS and Android.”
Source: quartr.com/products/mobile-app · read 31 Oct 2026Paid plans
AIR
No paid plan for reading AIR. The AIR API has its own plans, from €29/month excl. VAT.
Quartr
Quartr Pro: “Scalable pricing for multi-seat deals”, through sales.
Source: quartr.com/pricing · read 31 Oct 2026Filings
AIR
The 8-K, 10-Q and 10-K filings of the ~1,800 small and mid-cap US companies AIR follows, each with what it changed in AIR's read. Updated daily after the US close.
Quartr
Quartr API: “Annual and quarterly reports, 10-K/10-Q, 8-K, and locally published equivalents across global markets.”
Source: quartr.com/products/quartr-api · read 31 Oct 2026Coverage
AIR
~1,800 small and mid-cap US companies.
Quartr
“Companies covered” 17,000+, “Markets covered” 65+.
Source: quartr.com/products/quartr-pro · read 31 Oct 2026
What you get
What you get with AIR
- The Radar: every 8-K, 10-Q and 10-K AIR's companies filed, and what each one changed in AIR's read. Updated daily after the US close.
- The weekly Shortlist: the 5 material filings that moved AIR's read the most.
- Company timelines: every filing for each of the ~1,800 companies AIR follows, with its AIR Score™ and Discovery Gap.
- Free to read.
- A public track record: at each month-end AIR records the five widest Discovery Gaps, dated, and revisits them a month later.
What you get with Quartr
- Live calls: “One-click access to join any call live, with no manual registration on IR sites.”
Source: quartr.com/products/mobile-app · read 31 Oct 2026 - Free on mobile: “Live earnings calls, AI chat, transcripts, and more.”
Source: quartr.com/products/mobile-app · read 31 Oct 2026 - Events: “One calendar covering every public company event.”
Source: quartr.com/products/mobile-app · read 31 Oct 2026 - Content: “Earnings calls, conferences, capital markets days, filings, and slides.”
Source: quartr.com/ · read 31 Oct 2026
More side-by-side pages, each sourced the same way: Compare AIR.