🆚 Altcha vs. Yandex SmartCaptcha
Compare technologies based on real-world usage data *- 📈 Yandex SmartCaptcha is twice as popular as Altcha.
- 🌍 Yandex SmartCaptcha is more popular in Russia, Belarus, and Kazakhstan.
- 🌎 Altcha is more popular in Germany, France, and the United States.
Yandex SmartCaptchaType
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.
Yandex SmartCaptcha is a captcha service from the Russian company Yandex.
Headquarters
Pricing
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.
- 🥈 Second most popular in Russia in the Captchas category.
- 🥉 Third most popular in Russia in the Spam Protection 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.
reCAPTCHA
hCaptcha
Cloudflare Turnstile
Friendly Captcha* 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.