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ALTCHA VS GateSolve.dev

Compare ALTCHA VS GateSolve.dev and see what are their differences

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

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.

GateSolve.dev logo GateSolve.dev

CAPTCHA solving API for AI agents. Solve Cloudflare Turnstile, reCAPTCHA, hCaptcha via async API or MCP. 100 free solves.
  • 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.

  • GateSolve.dev Landing page
    Landing page //
    2026-04-04

ALTCHA

Website
altcha.org
Pricing URL
-
$ Details
free
Platforms
Web REST API
Edit details

GateSolve.dev

Website
gatesolve.dev
Pricing URL
Official GateSolve.dev Pricing
$ Details
-
Platforms
-
Edit details

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.

GateSolve.dev features and specs

  • Free GATE preparation tool
    GateSolve.dev provides free access to GATE (Graduate Aptitude Test in Engineering) preparation resources, making it accessible to students who may not be able to afford expensive coaching or premium platforms.
  • Practice-oriented approach
    The platform focuses on solving GATE-style problems and practice questions, which helps students build problem-solving skills and become familiar with the exam format through hands-on practice.
  • Web-based accessibility
    As a web application accessible via browser, GateSolve.dev does not require any software installation, making it convenient to use across different devices and operating systems.
  • Focused on engineering subjects
    The platform is tailored specifically for GATE exam topics covering computer science and engineering subjects, providing targeted preparation rather than generic study material.
  • Developer-friendly interface
    The .dev domain and the platform's design suggest a tech-savvy, developer-oriented approach that may appeal to computer science students who appreciate clean, modern web interfaces.

Possible disadvantages of GateSolve.dev

  • Limited recognition and community
    GateSolve.dev is a relatively niche platform with a smaller user base compared to established GATE preparation platforms, which means fewer peer discussions, reviews, and community-driven content.
  • Potentially limited content coverage
    As a smaller or newer platform, it may not cover all GATE subjects and topics as comprehensively as larger, more established preparation platforms that have been building content for years.
  • Lack of extensive documentation or reviews
    There is limited publicly available information, reviews, or testimonials about the platform, making it difficult for prospective users to evaluate its quality and effectiveness before committing time to it.
  • May lack advanced features
    Compared to premium GATE preparation platforms, GateSolve.dev may lack advanced features such as personalized study plans, detailed performance analytics, video explanations, or mock test simulations.
  • Uncertain long-term maintenance
    As what appears to be an independent or small-team project, there may be concerns about long-term maintenance, regular content updates, and continued availability of the platform over time.

Analysis of GateSolve.dev

Overall verdict

  • I don't have verified, specific information about GateSolve.dev, so I can't confirm its legitimacy, quality, or reputation. Before using or trusting this service, you should independently research it.

Why this product is good

  • No reliable or verifiable data is available about this specific domain in my knowledge base
  • Claims about niche or lesser-known web services can't be confirmed without direct investigation
  • Legitimacy and quality vary widely among similar-sounding developer tools or platforms

Recommended for

  • Users willing to conduct their own due diligence, such as checking domain registration age, reviews, and company transparency
  • Those who verify SSL certificates, business registration, and user testimonials before trusting a new platform
  • People comfortable testing services cautiously, such as with sandbox environments or limited data before full commitment

Category Popularity

0-100% (relative to ALTCHA and GateSolve.dev)

ALTCHA

GateSolve.dev

SPAM Protection
100 100%
SPAM Protection
0% 0
Captcha
80 80%
Captcha
20% 20
Web Scraping
0 0%
Web Scraping
100% 100
Security & Privacy
100 100%
Security & Privacy
0% 0

Questions & Answers

As answered by people managing ALTCHA and GateSolve.dev.

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 ALTCHA and GateSolve.dev. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, ALTCHA seems to be more popular. It has been mentiond 3 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.

ALTCHA mentions (3)

  • A self-hosted Google reCAPTCHA alternative (we ship it)
    The captcha on orkestr is Altcha. Self-hosted, no third-party JS, no Google, no behavioral tracking. Users don't see a puzzle. There's a single checkbox and a quiet "verifying..." while the browser does some math. About a second, total. - Source: dev.to / 2 months ago
  • Why Proof-of-Work Beats CAPTCHA for Form Protection
    Here's how PoW works for form protection (using the ALTCHA wire format):. - Source: dev.to / 4 months ago
  • Wicketkeeper โ€“ privacy-friendly, self-hostable PoW CAPTCHA
    Go based, similar to JS based ALTCHA https://altcha.org/ discussed at https://news.ycombinator.com/item?id=43971068. - Source: Hacker News / 7 months ago

GateSolve.dev mentions (0)

We have not tracked any mentions of GateSolve.dev yet. Tracking of GateSolve.dev recommendations started around Mar 2026.

What are some alternatives?

When comparing ALTCHA and GateSolve.dev, you can also consider the following products

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

IPQualityScore - IPQualityScore (IPQS) proactively prevents fraud without disrupting the user experience. Access leading fraud prevention tools to detect bots, emulators, VPNs, proxies, stolen user data, and fake users.

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.

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

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

Sift - Digital Trust & Safety enables your business to grow, innovate, introduce new products, features, and business models โ€“ without increased risk.

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