Simple pricing · no surprises

Pick the plan that fits.

Name: Angstroma Accessibility Platform
Brand: Angstroma

Start free in your browser. Solo for one site. Pro for many. Enterprise when procurement needs to red-line.

Free

$0forever

Browser extension · personal use

Use 35 tools on any website you visit.

Add to Chrome

35 accessibility tools
8 categories · 6 ready-made profiles
Any site you browse
Settings sync across devices
No account, no tracking
For YOUR website → see Solo or Pro

Solo

$19/ mo

Billed $228/yr · save $48 (17%)

Indie sites, freelancers, single websites.

Start with Solo

1 site · subdomains free
50,000 visits / mo
Weekly WCAG + AI scans · 10K pages
AI fix suggestions in scans (no credit cost)
Compliance reports + 2-yr audit trail
On-demand AI → Credit Pool add-on

Compare every feature

For procurement teams who need the row-by-row evaluation.

Show full comparison

Feature comparison across all Angstroma plans
Feature	Free	Solo	Pro	Enterprise
Pricing
Monthly	$0	$23/mo	$59/mo	Custom
Annual (17% off)		$228/yr	$588/yr	Custom
Sites & traffic
Apex domains		1	3	Unlimited
Subdomains		Free	Free	Free
Monthly visits cap		50K	500K	Unlimited
Browser extension
Accessibility tools
35 widget tools (8 categories)
6 ready-made profiles
Settings sync across devices
WCAG scanning
Monthly WCAG scans		1 / mo	5 / mo	Daily option
Pages per scan		1,000	5,000	Unlimited
AI fix suggestions in scans (no credit cost)
AI on-demand (chat / remediation)
AI Credit Pool add-on (Lite $29 → Scale $179/mo)		Add-on	Add-on	Custom
Smart Mode (Haiku / Sonnet / Opus)
Compliance & reporting
Compliance reports (PDF / VPAT)
Audit trail retention		2 years	2 years	Up to 7 yrs
GDPR data export (Article 20)
Custom DPA · data residency
Team & integrations
Team seats	1	1	10	Unlimited
WordPress · Shopify · Wix · Webflow plugins
SSO + SAML 2.0
Support & SLA
Email support		Standard	24h response	Dedicated
Dedicated CSM
SLA				99.9% + credits

NIST CSF 2.0 self-attestedOWASP ASVS Level 2GDPR + CCPA readyFERPA-aligned (K-12 tier)2-yr immutable audit trailAnnual third-party pentest

Payment:VisaMastercardAmerican ExpressACH (US)PO / Net-30 (Enterprise + K-12)

Frequently asked

Can I switch plans anytime?

Yes — upgrade or downgrade from your dashboard. Charges are prorated to the day. No fees, no contracts, no annual lock-in unless you choose annual billing.

What happens if I cancel?

Cancel anytime from your dashboard. Service continues until the end of your current billing period — no claw-back. 14-day refund on first payment if you are not satisfied.

What payment methods do you accept?

Visa, Mastercard, and American Express via Stripe for all self-serve plans. Enterprise and K-12 customers can pay by ACH or PO with Net-30 terms. Annual contracts are available for any tier.

How is the visit count measured?

A "visit" is a unique session where the widget loads, deduplicated by browser session. Bot traffic is excluded. Soft cap: we email you at 80% and 100% of your monthly limit — no hard cutoffs, no surprise bills. Enterprise customers can set custom thresholds.

What is an "apex domain"?

Your root domain (e.g., angstroma.com). All subdomains under it (app.angstroma.com, blog.angstroma.com) are covered free. Solo covers 1 apex; Pro covers 3. Need more? Contact us about apex add-ons.

Where is my data stored?

Azure SQL in US-East by default. Enterprise customers can choose EU-West, UK-South, or Canada-Central for data residency. No data is transferred outside your selected region (per the Subprocessors list in our DPA).

Do you offer a free trial?

The Free Chrome extension is yours forever, no card required. For paid plans, we offer a 14-day money-back refund on your first month — equivalent to a free trial without the card-up-front friction.

How does AI work — is it included or paid?

AI fix suggestions inside scans are included free in Solo and Pro (no credits consumed). On-demand AI features (chat, alt-text generation, content rewrite, scanner remediation) use the AI Credit Pool add-on that stacks on any paid tier — Lite ($29/mo, 2K credits), Plus ($59/mo, 5K), Max ($99/mo, 10K), Scale ($179/mo, 30K). Smart Mode lets you pick the model: Haiku=1, Sonnet=3, Opus=15 credits.

What is your security posture?

Argon2id password hashing (OWASP 2024 high profile), RS256 JWT tokens, tenant isolation via EF Core query filters, 2-year immutable audit trail, annual third-party pentest, NIST CSF 2.0 self-attested, OWASP ASVS Level 2 baseline. Full security overview at trust.angstroma.com.

How does Enterprise pricing work?

Enterprise is scoped per customer — based on number of sites, monthly visits, contract term, support tier, and data-residency requirements. Typical contract value starts at $12K/yr. Includes SSO/SAML, 99.9% SLA, dedicated CSM, custom DPA. Contact sales for a quote.

Do you have K-12 / school pricing?

Yes — see our schools pricing page. Microschools free (under 50 students), single schools $499/yr, districts add $129/yr per school. Self-serve up to 30 schools ($4,240/yr) — under the universal $5K board-approval threshold. 31+ schools or multi-district: master contract with state-specific DPA.

Will the widget stop working if my billing lapses?

No. The accessibility widget on your live site is never blocked by billing — that would create disability-discrimination liability for you. If your subscription lapses, billing pauses scan capacity and team-seat access, but the widget itself stays online for your visitors.

14-day refundcancel anytimeprices in USDsales tax exclusive