🆚 Altcha vs. reCAPTCHA
Compare technologies based on real-world usage data *- 📈 reCAPTCHA is much more popular than Altcha.
- 🌍 reCAPTCHA is more popular in all countries.
- ⭐ Altcha is particularly popular in Germany.
reCAPTCHAType
About
Altcha is an open-source, privacy-first, self-hosted captcha alternative that uses a proof-of-work mechanism to protect websites, APIs and online services from spam and unwanted content.
reCAPTCHA is a Google service that protects websites from spam, fraud, and automated abuse by distinguishing human users from bots.
It offers several versions, including v2 with an "I'm not a robot" checkbox and an invisible badge and v3 with background risk scoring.
Headquarters
cloud.google.comPricing
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- ⭐ 4th most popular in France in the Captchas category.
- ⭐ 4th most popular in the United Kingdom in the Captchas category.
- ⭐ 4th most popular in the Czech Republic in the Captchas category.
- ⭐ 5th most popular in Germany in the Captchas category.
- ⭐ 5th most popular in the United States in the Captchas category.
- 🥇 Most popular in the United States in the Captchas category.
- 🥇 Most popular in the United States in the Spam Protection category.
- 🥇 Most popular in the United Kingdom in the Captchas category.
- 🥇 Most popular in the United Kingdom in the Spam Protection category.
- 🥇 Most popular in Spain in the Captchas category.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
hCaptcha
Cloudflare Turnstile
Friendly Captcha
Human Presence
Google company profile* According to recent studies, many of online reviews are fake.
When making your decision, it is better to rely on data that cannot be falsified.
Our service evaluates the popularity of technologies by the number of websites using them.