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Head-to-head · CAPTCHA Software

Friendly Captcha vs Anubis

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Friendly Captcha #4 in CAPTCHA Software 8.9/10 Free plan · 30-day trial Free planFree trial✓ 2 of 3 features Try Friendly Captcha
Anubis #8 in CAPTCHA Software 8.2/10 Free plan Free plan✓ 0 of 3 features Visit Anubis

Friendly Captcha leads on 0 checks, Anubis on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreFriendly Captcha · 8.9/10
  • Free planboth
  • Free trialonly Friendly Captcha
  • Most featuresFriendly Captcha · 2 of 3

Friendly Captcha scores higher on our rubric for captcha software: 8.9 against 8.2 out of 10; our editors rank them #4 and #8.

Friendly Captcha is the better fit for teams seeking invisible CAPTCHA across web and mobile. Anubis is the better fit for small teams self-hosting request-level bot challenges.

  • Friendly Captcha fits best

    Teams seeking invisible CAPTCHA across web and mobile

  • Anubis fits best

    Small teams self-hosting request-level bot challenges

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Friendly Captcha 8.9/10 Visit ↗ Anubis 8.2/10 Visit ↗
At a glance
Editor score 8.9 8.2
Ranking #4 in CAPTCHA Software #8 in CAPTCHA Software
Best for Teams seeking invisible CAPTCHA across web and mobile Small teams self-hosting request-level bot challenges
Pricing model Free plan + paid Free
Starting price €9/mo Free plan
Free plan ✓ ✓
Free trial 30 days —
Deployment Cloud, Self-hosted, Browser extension Self-hosted
Platforms Web, iOS, Android Linux, Windows
Support Docs, Tickets Tickets, Community
Integrations 20 integrations 1 integrations
Built for Small business, Mid-market, Enterprise Solo, Small business
Features Friendly Captcha 2/3 · Anubis 0/3
Audio challenge — Not checked yet
Accessibility options ✓ (best) Not checked yet
Privacy controls ✓ (best) Not checked yet
Specs
CAPTCHA modes Invisible Not checked yet
Monthly verifications 1000 /mo Not checked yet
SDK platforms Both Not checked yet
Our review
Pros
  • Invisible proof-of-work challenges avoid image-labeling tasks
  • Integrations span web frameworks, CMSs, commerce platforms and mobile
  • Paid plans scale from 1 to 50 protected domains, with Enterprise options
  • Proof-of-work challenges with configurable difficulty and algorithm
  • Policies can allow, deny, challenge, or weigh requests
  • Reverse proxying, Prometheus-style metrics, and health checks
Cons
  • Starter is limited to 1 domain and 1,000 monthly requests
  • The free plan is restricted to non-commercial websites
  • Automatic risk detection and real-time risk intelligence start at Advanced
  • Requires self-hosting in front of an existing service
  • No behavioral analysis or device fingerprinting
  • Focused on request challenges rather than a broad managed CAPTCHA service
Our verdict

Friendly Captcha provides invisible CAPTCHA and bot protection for websites and online applications. Its proof-of-work puzzles and risk signals run in the background, avoiding image-labeling tasks and user interaction. Teams can connect it…

Read the review →

Anubis is an open-source reverse proxy utility for website operators who want to protect an upstream service from scraper bots, including AI crawlers. It evaluates incoming requests against configurable policies and can allow, deny, weigh,…

Read the review →
  1. Friendly CaptchaCAPTCHA Software 8.9Free plan · 30-day trial
  2. AnubisCAPTCHA Software 8.2Free plan

Strengths and trade-offs

  • Friendly Captcha — where it wins

    • Invisible proof-of-work challenges avoid image-labeling tasks
    • Integrations span web frameworks, CMSs, commerce platforms and mobile
    • Paid plans scale from 1 to 50 protected domains, with Enterprise options

    Where it doesn't

    • Starter is limited to 1 domain and 1,000 monthly requests
    • The free plan is restricted to non-commercial websites
    • Automatic risk detection and real-time risk intelligence start at Advanced

  • Anubis — where it wins

    • Proof-of-work challenges with configurable difficulty and algorithm
    • Policies can allow, deny, challenge, or weigh requests
    • Reverse proxying, Prometheus-style metrics, and health checks

    Where it doesn't

    • Requires self-hosting in front of an existing service
    • No behavioral analysis or device fingerprinting
    • Focused on request challenges rather than a broad managed CAPTCHA service
  • Friendly Captcha8.9/10 · Free plan · 30-day trial

    Background proof-of-work challenges suit teams seeking accessible, privacy-minded bot protection.

    Try Friendly CaptchaFull verdict →
  • Anubis8.2/10 · Free plan

    A free, open-source reverse proxy for operators who want request-level bot challenges.

    Visit AnubisFull verdict →

More comparisons

All CAPTCHA software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update