🆚 Altcha vs. MTCaptcha
Compare technologies based on real-world usage data *- 📈 Altcha is four times more popular than MTCaptcha.
- 🌎 Altcha is more popular in Germany, France, and the United States.
- 🌍 MTCaptcha is more popular in Hong Kong, Luxembourg, and China.
Type
Captcha service
Captcha service
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.
MTCaptcha is a GDPR and WCAG compliant enterprise captcha service.
Headquarters
Brno, Czech Republic
Mountain View, California, United States
Pricing
Free version ✔️Open source
ALTCHA Sentinel€24+/month
Free tier ✔️10K requests/month
Core (1 domain, 300K requests)$29/month
Pro (3 domains, 1M requests)$95/month
Business (6 domains, 2M requests)$170/month
EnterpriseCustom
Categories
Popularity
Determined by the number of sites using each technology.
The Altcha captcha service is 4 times more popular than MTCaptcha.
Total websites
Market share
Captchas
Spam Protection
Popularity by country
Determined by the number of sites detected from each country.
Altcha is more popular in Germany, France, and the United States, while MTCaptcha is more popular in Hong Kong, Luxembourg, and China.
Germany
France
United States
United Kingdom
Czech Republic
Switzerland
Austria
Netherlands
Sweden
Finland
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.
Popularity by domain category
Determined by the number of sites in each category.
Altcha is more popular among sites focused on business, online shopping, and marketing and merchandising, while MTCaptcha is more commonly used on finance and banking, and government and military sites.
Business
Online Shopping
Marketing/Merchandising
Non-Profit/Advocacy/NGO
Education/Reference
Internet Services
General News
Real Estate
Software/Hardware
Public Information
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
reCAPTCHA
hCaptcha
Cloudflare Turnstile
Friendly Captcha
Human Presence* 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.