Frequently Asked Questions

A "request" refers to obtaining a new "puzzle" from our servers by the captcha widget. Note that, by default, captcha widget only obtains a new "puzzle" when the user starts filling out the form, so you don't pay for every page load.

You can try Private Captcha for 14 days for free without a credit card.

After your usage exceeds current tier's limit for two consecutive months in a row, you will be contacted by our support with an offer to upgrade to a higher tier. You will not be automatically charged for sudden spikes of traffic.

Like many other CAPTCHA providers, Private Captcha offers an API specification compatible with Google reCAPTCHA, so migration only involves replacing API endpoints and client widget code.

You can cancel your subscription at any time. If you cancel, you can get a pro-rata refund for the unused part of your subscription.

Instead of asking users to solve complex puzzles or track their behavior, Private Captcha solves an invisible cryptographic task in the background. The system automatically adjusts the task difficulty, ensuring smooth access for real users while making it too costly for bots to attempt. Cryptographic task provides equal security regardless of bot's intelligence level, making it effective even as AI technology improves.

Unlike other solutions, that only have client-side code open, Private Captcha's backend code is also publicly available, making it easy to verify how user data is handled. Additionally, you can host Private Captcha on premises inside your own organization.

Private Captcha comes with many pre-built integrations for popular online platforms, such as WordPress, Ghost etc., and packages for many popular programming languages. Additionally, our documentation provides detailed setup and migration guides and integration examples.

The Private Captcha widget offers two color themes (light and dark) and also allows to do lower-level customization, using CSS, ensuring seamless integration with your website. Additionally, you can hide the captcha widget altogether and make your custom UI integration, all while keeping security benefits.

Private Captcha does not use any client-side tracking technologies like cookies and does not retain Personally Identifiable Information (PII) on its backend systems. As part of service operation, user data is anonymized and aggregated, making it impossible to track to any individual user.

Private Captcha is powered by exclusively European suppliers. If you want to ensure that no data is transferred to other countries due to geographic routing, you can also use our EU-only API endpoints.

The Private Captcha widget offers better accessibility for website visitors, regardless of their cognitive abilities. Also, it is a more lightweight (17 vs 220 kB) solution that does not require cookie banners and therefore reduces friction of using the website.

Private Captcha is considered to be used commercially when client integrations (website widget or client SDKs), connected to your installation, are used by for-profit legal entities or on websites that sell products or services. See license for details.

One license allows for a single installation of Private Captcha.

Email support during our business hours is included with your subscription. Additional support services (e.g. setup help) are billed separately.

You can cancel your subscription at any time. Prepaid fees for monthly pricing are non-refundable.

While you can integrate self-hosted Private Captcha to your website or client application, it cannot be part of an offering where it forms a substantial part of the service or that competes with our managed offering.