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Simple pricing · no surprises

Pick the plan that fits.

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
Most popular
Pro
$49/ mo
Billed $588/yr · save $120 (17%)

Multi-site businesses, agencies, e-commerce.

Start with Pro
  • 3 sites · subdomains free
  • 500,000 visits / mo
  • Weekly scans · 50K pages
  • AI fix suggestions in scans (no credit cost)
  • 10 team seats · WordPress / Shopify / Wix / Webflow
  • 24h email support
  • On-demand AI → Credit Pool add-on
Enterprise
Talk to us
Custom contract · scope-based

Large agencies, multi-brand portfolios, government, non-profits.

Contact sales
  • Unlimited sites & visits
  • SSO + SAML 2.0 · audit logs
  • 99.9% SLA + service credits
  • Dedicated CSM · onboarding
  • Custom AI credit allowance
  • Multi-region · custom DPA · data residency

K-12 schools & districts

Microschools free · Single schools $499/yr · Districts from $499/yr + $129/yr per school

See schools pricing

Compare every feature

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

Show full comparison
Feature comparison across all Angstroma plans
FeatureFreeSoloProEnterprise
Pricing
Monthly$0$23/mo$59/moCustom
Annual (17% off)$228/yr$588/yrCustom
Sites & traffic
Apex domains13Unlimited
SubdomainsFreeFreeFree
Monthly visits cap50K500KUnlimited
Browser extension
Accessibility tools
35 widget tools (8 categories)
6 ready-made profiles
Settings sync across devices
WCAG scanning
Monthly WCAG scans1 / mo5 / moDaily option
Pages per scan1,0005,000Unlimited
AI fix suggestions in scans (no credit cost)
AI on-demand (chat / remediation)
AI Credit Pool add-on (Lite $29 → Scale $179/mo)Add-onAdd-onCustom
Smart Mode (Haiku / Sonnet / Opus)
Compliance & reporting
Compliance reports (PDF / VPAT)
Audit trail retention2 years2 yearsUp to 7 yrs
GDPR data export (Article 20)
Custom DPA · data residency
Team & integrations
Team seats1110Unlimited
WordPress · Shopify · Wix · Webflow plugins
SSO + SAML 2.0
Support & SLA
Email supportStandard24h responseDedicated
Dedicated CSM
SLA99.9% + 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