hCaptcha alternative: Antisy or hCaptcha, by the documentation of each

Looking for an hCaptcha alternative? Antisy and hCaptcha both verify, from your server, a token sent with the form. They differ in the company that operates the service, in what the visitor sees and in the state of the offer: hCaptcha is available today; Antisy is on a waiting list.

As of 27 October 2026.

The table: Antisy and hCaptcha

Antisy and hCaptcha, point by point
Criterion	Antisy	hCaptcha
Company and legal framework	Antisy Sàrl, a Swiss company entered in the Geneva commercial register. The API and the dashboard (in French) are hosted at Infomaniak, in Geneva, and have been in service since 27 October 2026.	Intuition Machines, Inc., whose privacy policy says it is based in the United States. The page on the GDPR states that metadata is processed on behalf of customers in its main data centres in Europe and, where applicable, in the United States, and that analytics data is stored in the EU by default. [1] [2]
What the visitor sees	Nothing: no checkbox and no puzzle. The visitor’s browser only does a short computation in the background.	By default, a checkbox widget. With the “invisible” option, the widget is rendered in the background and is presented only if a challenge is needed. The “passive” mode, where no visible challenge is ever shown, is reserved for Enterprise customers according to the documentation. [3]
Cookies and storage	Neither the verification script nor the API sets a cookie, and the script writes nothing to the browser’s storage. The data the script measures and the data the server reads are listed, with their retention periods, on the home page and in the frequently asked questions.	The privacy policy lists cookies, including `hmt_id` (30 days), and says that, according to the company, the anti-bot service uses only so-called “consent-exempt” cookies within the meaning of the GDPR. [1]
Integration	A `<script>` tag in the page; on submission, the script puts a short token in the hidden field `antisy-token`; your server sends it to `POST /v1/siteverify` with its secret and reads `allow` or `deny`.	A script loaded from `https://js.hcaptcha.com/1/api.js` and an `h-captcha` container; after a passed challenge, the token arrives in `h-captcha-response`. The server sends it with its secret to `https://api.hcaptcha.com/siteverify` (POST, URL-encoded) and allows the action only if `success` is true. [4]
Public prices	Free: CHF 0, 2,500 checks per month and 1 site, no credit card. Standard, Pro and Enterprise: on quote. Access is by waiting list; nothing is paid online.	Basic: free. Pro: $139 per month, or $99 per month paid annually, with 100,000 assessments per month included, then $0.99 per 1,000, and a free trial. Enterprise: on contact, with no published price. The pricing page is not dated. [5]

Company and legal framework

Antisy

Antisy Sàrl, a Swiss company entered in the Geneva commercial register. The API and the dashboard (in French) are hosted at Infomaniak, in Geneva, and have been in service since 27 October 2026.

hCaptcha

Intuition Machines, Inc., whose privacy policy says it is based in the United States. The page on the GDPR states that metadata is processed on behalf of customers in its main data centres in Europe and, where applicable, in the United States, and that analytics data is stored in the EU by default. [1] [2]

What the visitor sees

Antisy

Nothing: no checkbox and no puzzle. The visitor’s browser only does a short computation in the background.

hCaptcha

By default, a checkbox widget. With the “invisible” option, the widget is rendered in the background and is presented only if a challenge is needed. The “passive” mode, where no visible challenge is ever shown, is reserved for Enterprise customers according to the documentation. [3]

Cookies and storage

Antisy

Neither the verification script nor the API sets a cookie, and the script writes nothing to the browser’s storage. The data the script measures and the data the server reads are listed, with their retention periods, on the home page and in the frequently asked questions.

hCaptcha

The privacy policy lists cookies, including hmt_id (30 days), and says that, according to the company, the anti-bot service uses only so-called “consent-exempt” cookies within the meaning of the GDPR. [1]

Integration

Antisy

A <script> tag in the page; on submission, the script puts a short token in the hidden field antisy-token; your server sends it to POST /v1/siteverify with its secret and reads allow or deny.

hCaptcha

A script loaded from https://js.hcaptcha.com/1/api.js and an h-captcha container; after a passed challenge, the token arrives in h-captcha-response. The server sends it with its secret to https://api.hcaptcha.com/siteverify (POST, URL-encoded) and allows the action only if success is true. [4]

Public prices

Antisy

Free: CHF 0, 2,500 checks per month and 1 site, no credit card. Standard, Pro and Enterprise: on quote. Access is by waiting list; nothing is paid online.

hCaptcha

Basic: free. Pro: $139 per month, or $99 per month paid annually, with 100,000 assessments per month included, then $0.99 per 1,000, and a free trial. Enterprise: on contact, with no published price. The pricing page is not dated. [5]

This table compares neither detection rates nor speed: Antisy publishes none. The facts about hCaptcha come from its official documentation, read on 27 October 2026; the numbers refer to the sources, at the bottom of the page.

Where does Antisy stand?

Access is by waiting list. The API and the dashboard (in French) have been in service since 27 October 2026, hosted at Infomaniak in Geneva; no customer is in production yet.

See also: The pilot · Join the waiting list

Looking for an hCaptcha alternative? When to choose one or the other

Choose hCaptcha if…

you want a service available today, with a free plan and a published price list;
you want a checkbox widget your visitors already know, or an invisible mode that shows a challenge only if needed;
you need a risk score and a passive mode, which the documentation of hCaptcha reserves for Enterprise customers.

Choose Antisy if…

you want the visitor to see neither a checkbox nor a puzzle;
you want a contract with a Swiss company and an API operated in Geneva, at Infomaniak;
you want a verification script that sets no cookie;
you accept going through the waiting list: access is not open yet and no customer is in production.

Frequently asked questions

Does Antisy do the same thing as hCaptcha?

Both give your server what it needs to decide, from a token to verify. hCaptcha shows a checkbox widget by default, and a challenge when it deems it necessary; Antisy never shows anything. Antisy returns a verdict with two outcomes, allow or deny, with no reason.

These pages do not compare effectiveness: Antisy announces no detection rate.

Where is the data processed with each one?

For Antisy, the API and its database are hosted at Infomaniak, in Geneva, in service since 27 October 2026. For hCaptcha, the company is based in the United States; its page on the GDPR says that the metadata of customers is processed in its main data centres in Europe and, where applicable, in the United States.

Which one is free?

hCaptcha: the Basic plan is free. Antisy: the Free tier, 2,500 checks per month for 1 site, no credit card; it is not open yet, access is by waiting list.

Can Antisy be used today?

Access is by waiting list. The API and the dashboard (in French) have been in service since 27 October 2026, hosted at Infomaniak in Geneva; no customer is in production yet. A pilot is planned; it has not started.

Sources

Official pages of hCaptcha, read on 27 October 2026.

hCaptcha: privacy policy (7 October 2025): https://www.hcaptcha.com/privacy
hCaptcha: page on the GDPR: https://www.hcaptcha.com/gdpr
hCaptcha: invisible captcha: https://docs.hcaptcha.com/invisible
hCaptcha: documentation (integration and verification): https://docs.hcaptcha.com/
hCaptcha: pricing: https://www.hcaptcha.com/pricing