---
title: "Compare CAPTCHA Alternatives | Edge Shield"
description: "Compare Edge Shield to Cloudflare Turnstile, Google reCAPTCHA, hCaptcha, and Friendly Captcha. Free, privacy-first bot protection with a humanity score."
url: https://edge.network/shield/compare/
---

# Compare CAPTCHA Alternatives | Edge Shield

[Shield](https://edge.network/shield)

Shield

# How Shield Compares

Free like Turnstile, scored like reCAPTCHA v3, private like nothing else. See how Shield stacks up against every alternative.

## Feature Comparison

A detailed breakdown of Shield vs the most popular verification providers.

| Feature | Edge Shield | Turnstile | reCAPTCHA | hCaptcha | Friendly Captcha |
| Price | Free, unlimited | Free | Free to 10k/mo | Free tier | Paid (free for non-commercial) |
| Confidence score | 1–100, every call | ✗ | 0.0–1.0 (v3) | Enterprise only | ✗ |
| Visual puzzles | Never | Never | v2 fallback | Yes | Never |
| Invisible mode | ✓ | ✓ | ✓ (v3) | Paid | ✓ |
| Proof-of-work challenges | ✓ | Partial | ✗ | ✗ | ✓ |
| No ad-tech tracking | ✓ | ✓ | ✗ | ✓ | ✓ |
| No per-visitor data stored | ✓ | ✗ | ✗ | ✗ | ✓ |
| Open-source widget | ✓ | ✗ | ✗ | ✗ | ✓ |
| Independent of big-cloud ecosystem | ✓ | ✗ | ✗ | ✓ | ✓ |
| Turnstile-compatible siteverify | ✓ | — | ✗ | Partial | ✗ |
| Works without account lock-in | ✓ | Cloudflare account | Google account | ✓ | ✓ |

Competitor capabilities and pricing based on publicly available information and may change.

## What actually sets Shield apart

Four differences that matter more than any feature checkbox.

### A score, not just a verdict

Every other free option gives you pass/fail at best. Shield returns a 1–100 humanity score on every verification, so your application can make graduated decisions — auto-approve humans, step up uncertain traffic, redirect legitimate AI agents to your API, or block abuse. Built for a web where automation isn't automatically the enemy.

### Nothing to leak

Turnstile, reCAPTCHA, and hCaptcha all store per-visitor data somewhere. Shield architecturally cannot: signals are scored in memory and discarded, and only hourly aggregates are persisted. Privacy compliance becomes a non-event.

### No ecosystem lock-in

Shield is a standalone service. It doesn't require routing traffic through our network, doesn't deepen a cloud dependency, and its siteverify format is Turnstile-compatible — so leaving is as easy as arriving. We'd rather keep you with quality than with switching costs.

### Built to be unnoticeable

A dependency-free widget under 15KB that does its work in a Web Worker. No layout shift, no main-thread jank, no Core Web Vitals penalty — lighter than every mainstream alternative.

## Provider by provider

Every provider has strengths. Here's an honest look at each — and where Shield wins.

### Shield vs Cloudflare Turnstile

The CAPTCHA alternative that popularised invisible verification, free within the Cloudflare ecosystem.

#### Strengths

Free
No visual puzzles
Mature bot detection
Managed/non-interactive/invisible modes

#### Limitations

No confidence score exposed
Requires a Cloudflare account
Closed-source widget
Stores per-visitor data
Deepens Cloudflare lock-in

**The Shield advantage:** Shield matches Turnstile's modes and siteverify format exactly — then adds a 1–100 humanity score, an open-source widget, and zero per-visitor data. Migration is a URL and key swap.

### Shield vs Google reCAPTCHA

The incumbent. v2 shows image puzzles; v3 scores traffic invisibly — with Google's tracking along for the ride.

#### Strengths

Huge training dataset
v3 exposes a score
Familiar to every developer

#### Limitations

Ad-tech tracking concerns
Image puzzles frustrate users (v2)
Free tier capped at 10,000 assessments/month
GDPR compliance burden
Accessibility problems

**The Shield advantage:** Shield gives you what v3's score offers without the tracking, the puzzles, or the assessment cap — and without wiring Google into every page of your site.

### Shield vs hCaptcha

A privacy-focused reCAPTCHA alternative, but one that still leans on visual puzzles for verification.

#### Strengths

Privacy-friendlier than reCAPTCHA
Drop-in reCAPTCHA compatibility
Established enterprise product

#### Limitations

Shows image puzzles to real users
Invisible mode is a paid feature
Score gated behind enterprise plans
Closed-source widget

**The Shield advantage:** Shield never shows a puzzle — verification is proof-of-work plus signals, not human labelling labour. Invisible mode and the humanity score are free for everyone.

### Shield vs Friendly Captcha

A European privacy-first CAPTCHA built on proof-of-work, philosophically closest to Shield.

#### Strengths

Genuinely privacy-first
Proof-of-work based
No puzzles
EU-hosted

#### Limitations

Paid for commercial use
No confidence score
No adaptive managed mode
Smaller detection surface

**The Shield advantage:** Shield takes the same privacy-first, proof-of-work approach and makes it free for commercial use — with adaptive risk scoring and a humanity score on top.

## Migrating takes minutes. Staying is optional.

If you're on Turnstile, the siteverify response is identical — swap a URL and two keys. If you're on reCAPTCHA or hCaptcha, the widget drops into the same place on your forms.

[Start Migration Free](https://edge.network/account)