tapcha

Adds a tapcha form tag to Contact Form 7. You can use it by adding [tapcha* name] to your form in Contact Form 7. 
This plugin makes use of the API from tapcha.co.uk to generate Tapcha challenges and to check whether the response is correct.
<h3>Tapcha API</h3>
This plugin will make requests to our API hosted at api.tapcha.co.uk. A request will be made to it in the following circumstances: 
– When a short code / form tag is used, a request will be made to generate the challenge to display on page load 
– When users respond to a challenge, a request is made to the API to verify whether the response is correct 
– If you have entered an admin key in the settings page, a request will be made to gather statistics that will be shown below
For more information please read our: 
– Terms of service at http://tapcha.co.uk/terms-of-service 
– Privacy policy at http://tapcha.co.uk/privacy-policy

Tapcha

A gesture based CAPTCHA scheme. Integrates with Contact Form 7

Mukul Hossain

Add an text captcha to your contact form 7 form. This plugin will not slow down your site with additional header requests like Google’s ReCAPTCHA and respects your users privacy.
<h4>Directions [PLEASE READ]</h4>
Add the shortcode [cf7tc] to the form editor where you want the captcha to appear.
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Demo
Check out <a href="https://getwebexperts.com/contact-form-7-text-captcha" rel="nofollow ugc">demo</a>

Tapcha vs Text Captcha For Contact Form 7 [GWE]