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Anticaptcha VS ALTCHA

Compare Anticaptcha VS ALTCHA and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

Anticaptcha logo Anticaptcha

Anticaptcha is one of the most utilize captcha solving services that bypass any encryption and provide you and automation protected there for your web-app and website bypassing service.

ALTCHA logo ALTCHA

ALTCHA is a free CAPTCHA alternative that uses a proof-of-work mechanism to protect your website, and online services from spam.
  • Anticaptcha Landing page
    Landing page //
    2023-06-01
  • ALTCHA Simple, user-friendly verification.
    Simple, user-friendly verification. //
    2024-04-30

ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. Unlike other solutions, ALTCHA is free, open-source and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully compliant with GDPR.

Anticaptcha features and specs

  • Automation Efficiency
    Anticaptcha automates the process of solving CAPTCHAs, which can save time and effort for businesses and developers needing automated browsing or data extraction.
  • High Success Rate
    With a vast pool of human solvers and sophisticated machine learning models, Anticaptcha offers a high success rate in solving various types of CAPTCHAs accurately.
  • Cost-Effective
    Compared to other CAPTCHA solving services, Anticaptcha is often more affordable, providing competitive pricing for volume CAPTCHA solving.
  • API Integration
    Anticaptcha provides easy-to-use API integration, making it convenient for developers to incorporate CAPTCHA solving into their applications or bots.
  • Supports Various CAPTCHA Types
    Anticaptcha supports a wide range of CAPTCHA types, including image CAPTCHAs, reCAPTCHA v2/v3, and hCaptcha, making it a versatile option.

Possible disadvantages of Anticaptcha

  • Dependency on External Service
    Relying on Anticaptcha means being dependent on an external service, which can introduce risks such as service downtime or API changes.
  • Ethical and Legal Concerns
    Automated CAPTCHA solving may lead to ethical and legal issues, especially if used to bypass security measures or scrape data without consent.
  • Potential for Decreased Security
    Using automated CAPTCHA solving can potentially reduce the effectiveness of security measures intended by website owners to protect against bots.
  • Variable Solving Times
    The solving time for CAPTCHAs can vary depending on server load and complexity, which might delay processes that require quick responses.
  • Conflict with Terms of Service
    Some websites explicitly forbid the use of automated CAPTCHA solving, which could lead to account bans or IP blocks if detected.

ALTCHA features and specs

  • Privacy-friendly, GDPR compliant
    No cookies, no tracking, no external servers.
  • Frustration-free
    No visual puzzles. PoW Captcha is better for people.
  • Spam Filtering
    Employs machine learning to categorize submitted data and identify unwanted messages.
  • Open-source
    Free to use, free to modify. MIT licensed.

Category Popularity

0-100% (relative to Anticaptcha and ALTCHA)

Anticaptcha

ALTCHA

Captcha
71 71%
Captcha
29% 29
SPAM Protection
0 0%
SPAM Protection
100% 100
Web Application Security
100 100%
Web Application Security
0% 0
Anticaptcha
100 100%
Anticaptcha
0% 0

Questions & Answers

As answered by people managing Anticaptcha and ALTCHA.

What makes your product unique?

ALTCHA's answer:

What makes ALTCHA unique is that it is free, open-source and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully compliant with GDPR. Unlike other captcha solutions, ALTCHA does not require users to solve puzzles or captchas and uses a proof-of-work mechanism instead.

Why should a person choose your product over its competitors?

ALTCHA's answer:

Here are some key reasons why a person should choose ALTCHA over its competitors:

  • Privacy compliance - ALTCHA is fully compliant with privacy regulations like GDPR since it does not use cookies, fingerprinting or track users. This is a major advantage over other captcha solutions.
  • Open source and self-hosted - ALTCHA is free, open source software that can be self-hosted without relying on external services. This gives more control and independence to the user.
  • Accessible design - ALTCHA uses a proof-of-work mechanism instead of puzzles or captchas, making it more friendly and accessible for humans. Captchas can be difficult for some users.
  • Machine compatibility - ALTCHA is designed to also work for machines and APIs, making services accessible for bots and automated systems. Other solutions may not be as compatible.
  • Modern approach - ALTCHA represents a privacy-first, inclusive approach to spam protection as opposed to traditional captcha methods. This future-proofs the solution.
  • Effective spam filtering - In addition to proof-of-work, ALTCHA also offers an effective spam filter module to block sophisticated spam attacks. This provides comprehensive protection.

So in summary, ALTCHA's privacy compliance, open design, accessibility, machine compatibility and modern approach give it clear advantages over competing captcha solutions.

Which are the primary technologies used for building your product?

ALTCHA's answer:

JavaScript and Svelte.

User comments

Share your experience with using Anticaptcha and ALTCHA. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Anticaptcha should be more popular than ALTCHA. It has been mentiond 28 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Anticaptcha mentions (28)

  • OpenAI's ChatGPT Agent casually clicks through "I am not a robot" verification
    The only thing preventing this from becoming an issue is that paying humans to solve the captchas is actually cheaper than using OpenAI or any other AI service to solve it. Not an advert, but I only know them because it was integrated with Invidious at some point: https://anti-captcha.com/. - Source: Hacker News / 12 months ago
  • Unauthorized experiment on CMV involving AI-generated comments
    Are you serious? With services like https://anti-captcha.com/ the bot free anonymous discourse is over for a long time now. It's in bad faith when people seriously tell you they don't expect something when they make rules against it. - Source: Hacker News / about 1 year ago
  • 10 web scraping challenges (+ solutions) in 2025
    However, CAPTCHAs can still appear, even when precautions are in place. In such cases, your best bet is to integrate a CAPTCHA-solving service. Tools like Apifyโ€™s Anti Captcha Recaptcha Actor, which works with Anti-Captcha, can help you equip your crawlers with CAPTCHA-solving capabilities to handle these challenges automatically and avoid disrupting your scraping. - Source: dev.to / over 1 year ago
  • I was banned from the hCaptcha accessibility account for not being blind
    I am also blind. Hcaptcha is the worst. Their stupid cookie expires so I have to go through their getting an email to set the cookie almost every time I encounter one. It's a horrendous UX, especially when using different devices and browsers. I imagine others just give up instead of dealing with the crap. They shouldn't use the word accessibility when their whole service is the exact opposite. The bots can... - Source: Hacker News / over 1 year ago
  • Buster: Captcha Solver for Humans
    For example https://2captcha.com/ https://anti-captcha.com/ https://www.capsolver.com/ https://deathbycaptcha.com/ https://nextcaptcha.com/ seems like about $1 for 1000 solutions I suspect these businesses do a first pass of ML in case the captcha is easy, before sending it to a human to be solved manually. - Source: Hacker News / almost 2 years ago
View more

ALTCHA mentions (3)

What are some alternatives?

When comparing Anticaptcha and ALTCHA, you can also consider the following products

2captcha - 2Captcha is a CAPTCHA-solving API for automating reCAPTCHA, Cloudflare, and other anti-bot challenges.

reCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.

CAPTCHAs.IO - One of the most stable and fast yet affordable captcha solver API web service provider online.

hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.

GSA Captcha Breaker - GSA Captcha Breaker is solving captchas without paying per captcha.

Cloudflare Turnstile - Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors.

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