🆚 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
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.
reCAPTCHA is a service from Google that helps protect websites from spam and abuse.
Headquarters
Brno, Czech Republic
Mountain View, California, United States
google.com/recaptcha/Pricing
Free version ✔️Open source
ALTCHA Sentinel€24+/month
Free tier ✔️Up to 10K assessments per month
From 10K to 100K assessments$8/month
> 100K assessments per month$1/1K
Categories
Popularity
Determined by the number of sites using each technology.
The reCAPTCHA service is 1,508 times more popular than Altcha.
Total websites
Market share
Captchas
Spam Protection
Popularity by country
Determined by the number of sites detected from each country.
reCAPTCHA is more popular than Altcha in all countries.
United States
United Kingdom
Australia
Spain
Japan
Italy
Netherlands
France
Germany
Canada
Awards
- ⭐ 4th most popular in France in the Captchas category.
- ⭐ 5th most popular in Germany in the Captchas category.
- ⭐ 7th most popular in France in the Spam Protection category.
- ⭐ 8th most popular in Germany in the Spam Protection category.
- 🥇 Most popular in the United States in the Spam Protection category.
- 🥇 Most popular in the United States in the Captchas category.
- 🥇 Most popular in the United Kingdom in the Spam Protection category.
- 🥇 Most popular in the United Kingdom in the Captchas category.
- 🥇 Most popular in Australia in the Spam Protection category.
Popularity by domain category
Determined by the number of sites in each category.
reCAPTCHA is more popular than Altcha in all market segments.
Business
Marketing/Merchandising
Online Shopping
Internet Services
Education/Reference
Travel
Blogs/Wiki
Health
Entertainment
Non-Profit/Advocacy/NGO
Top sites
Top-ranked sites that use these technologies.
Name
Rank
#7,829
#22,338
#26,648
#32,511
#49,955
Compare alternatives
Technologies with similar characteristics.
Data updated
* 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.
When interpreting and using the results, please read our methodology and disclaimer.