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ALTCHA pricing

Freemium#13 of 32 in CAPTCHA Software

ALTCHA costs from 18.90 EUR on its cheapest paid plan; 10 plans in all, as listed on altcha.org — prices checked 22 Oct 2026.

7.7/10Editor score
Visit ALTCHA
ALTCHA7.7 Visit ALTCHA

ALTCHA pricing at a glance

Plans Free plan · 30-day trialFreemium A usable free plan; paid tiers unlock the limits below. Prices checked 22 Oct 2026.
See plans on altcha.org

ALTCHA plans & pricing

PlanPriceKey limits
Open-source coreNot checked yet
  • Proof-of-work widget
  • Self-hosted
  • MIT licensed
Cloud€47/mo 30-day free trial
  • 3 sites
  • Up to 1,000 API requests per day
Cloud Plus€137/mo 30-day free trial
  • 10 sites
  • Up to 10,000 API requests per day
Cloud Max€187/mo 30-day free trial
  • 50 sites
  • Up to 20,000 API requests per day
Sentinel Professional€99/mo 30-day free trial
  • Up to 3 instances
  • Up to 10 accounts
  • Up to 10 users
Sentinel Enterprise€799/mo
  • Unlimited instances
  • Unlimited accounts and users
Sentinel Enterprise LifetimeNot checked yet
  • Everything in Enterprise
  • Perpetual license
  • Lifetime updates
WordPress Professional€18.90/mo 14-day free trial
  • 1 site included
WordPress Lifetime€499 one-time Buy once, use forever
  • 1 site included
WordPress Agency€119.90/mo
  • Up to 100 sites per license

Prices as published by the vendor on altcha.org, checked 22 Oct 2026; taxes and regional pricing may differ. We do not change a plan's price or its limits — this table is what the vendor's own pricing page said on that date.

What the price includes

  • Free trial
    30 days · no card needed
  • Built for
    Solo, Small business, Mid-market, Enterprise
  • Integrations
    20 integrations: React, Vue, Svelte, Solid, Lit, Angular …
  • Free plan
    Yes
  • Paid from
    €18.90/mo
  • CAPTCHA modes
    Proof-of-work

Our full ALTCHA verdict, fact sheet and score →

Prices checked by iTechGuides Editors · Editorial team · Updated Oct 2026

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