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ALTCHA VS SubmitDirs

Compare ALTCHA VS SubmitDirs and see what are their differences

ALTCHA

ALTCHA is a free CAPTCHA alternative that uses a proof-of-work mechanism to protect your website, and online services from spam.

Rating
0 reviews
Pricing
Open source Free
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Alternatives Is it good?
SubmitDirs

Submit Your Product to 100+ Directories. Improve your website's SEO and visibility by getting listed in 100+ quality directories to build powerful backlinks

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Rating
0 reviews
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Zoviz
Zoviz: Professional Logos, Perfectly Personalized Your Brand. Your Story sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, ALTCHA seems to be more popular. It has been mentioned 4 times since March 2021.

social mentions
4 vs 0
SPAM Protection popularity
100% vs 0%
alternatives listed
49 vs 19

Base details

Website, pricing, platforms and company facts side by side.

ALTCHA
SubmitDirs
Website altcha.org submitdirs.com
Pricing
Open source Free
Official pricing
Platforms
Web REST API
—
Listed in
Security & Privacy SPAM Protection Anti-Spam Captcha SPAM API +2
SEO Tools Software Directory Submission Software Directory AI +1

About ALTCHA and SubmitDirs

In their own words, as submitted to SaaSHub.

ALTCHA
SubmitDirs

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...

Read more about ALTCHA

No description of SubmitDirs yet.

Features and specs

What each product offers, as listed by its team.

ALTCHA 9 features
SubmitDirs 5 features
  • 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.
  • End-to-End Encryption
    The Encryption Shield mitigates data breaches by encrypting data with asymmetric end-to-end encryption.
  • Digital e-Signatures
    e-Signatures made easy with eIDAS-compliant simple and advanced signatures - qualified digital certificates and DigiDoc.
  • Visual Form Builder
    Create custom forms effortlessly with the visual form builder, empowering users to design tailored solutions without any coding expertise.
  • File Attachments
    Safely request and securely store file attachments with end-to-end encryption, ensuring the utmost protection for your data.
  • Send to Email or Webhook
    Configure forms to seamlessly send data to email, APIs, or webhooks using processors, facilitating efficient data handling and integration with your workflows.
  • Directory Submission Service
    SubmitDirs offers a streamlined service for submitting websites to multiple web directories, saving users the time and effort of manually submitting to each directory individually.
  • SEO Backlink Building
    The service helps website owners build backlinks through directory submissions, which can contribute to improving search engine rankings and domain authority over time.
  • Time-Saving Automation
    Rather than manually finding and submitting to directories one by one, SubmitDirs automates or simplifies the process, making it much more efficient for webmasters and SEO professionals.
  • Affordable Pricing
    Compared to hiring an SEO specialist or agency for link-building campaigns, directory submission services like SubmitDirs tend to be relatively affordable and accessible for small businesses and individuals.
  • Easy to Use
    The platform is designed to be straightforward, allowing users without extensive SEO knowledge to submit their websites to directories with minimal technical expertise required.

Possible disadvantages

  • Limited SEO Impact
    Directory submissions are considered a low-value SEO tactic in modern search engine optimization. Google and other search engines have significantly devalued directory links, meaning the SEO benefit may be minimal.
  • Risk of Low-Quality Directories
    Some directories included in submission services may be low-quality or spammy, which could potentially harm a website's SEO rather than help it if search engines view them as manipulative link schemes.
  • Relatively Unknown Service
    SubmitDirs is not a widely recognized or heavily reviewed platform, making it difficult to verify the quality and reliability of the service before committing to it.
  • Outdated SEO Strategy
    Mass directory submission was a popular SEO tactic in the early 2000s but is now considered largely outdated. Modern SEO strategies focus more on content marketing, quality backlinks, and user experience.
  • Limited Transparency
    It can be difficult to know exactly which directories your site will be submitted to, the quality of those directories, and whether the submissions will actually be approved and result in live backlinks.

Analysis

An editorial look at what each product does well and who it suits.

ALTCHA
SubmitDirs

No analysis of ALTCHA yet.

Overall verdict

  • SubmitDirs is a reasonably useful directory submission service for businesses looking to build backlinks and improve online visibility, though its overall value depends on your specific SEO goals and expectations, as directory submissions carry less weight in modern SEO than they once did.

Why this product is good

  • Offers automated submission to a large number of web directories, saving time compared to manual submissions
  • Can help improve initial online visibility and provide some backlink diversity for new websites
  • Affordable pricing options make it accessible for small businesses and startups
  • May assist with local and niche directory listings that can support brand presence

Recommended for

  • Small businesses and startups looking to establish an initial online footprint
  • Website owners wanting to save time on manual directory submissions
  • Budget-conscious marketers seeking affordable link-building options
  • Local businesses aiming to appear in relevant online directories

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
ALTCHA
SubmitDirs
100% 100%
SPAM Protection
0% 0%
0% 0%
SEO Tools
100% 100%
100% 100%
Security & Privacy
0% 0%
0% 0%
Software Directory
100% 100%

Questions & Answers

As answered by people managing ALTCHA and SubmitDirs.

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.

How would you describe the primary audience of your product?

ALTCHA's answer

Our primary audience for ALTCHA Forms includes enterprises, medium and small businesses, non-profits, and individuals who need a reliable, secure, and compliant solution for data collection and management. Whether you're a large corporation dealing with extensive regulatory requirements, a small business looking to protect customer and employee data, a non-profit organization managing sensitive information, or an individual seeking robust data security, ALTCHA Forms provides the tools and features necessary to meet your needs. With a focus on compliance, user-friendly design, and advanced security measures, our platform is tailored to support diverse users in navigating complex regulatory landscapes and ensuring data protection.

User comments

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

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

ALTCHA 4 mentions
SubmitDirs 0 mentions
  • Self-Hosted Proof of Work with ALTCHA: A Turnstile Alternative for Magento
    ALTCHA won on the boring things. It is open source, self-hosted and collects nothing, and it ships official libraries in both Go and PHP, the two languages our two layers already speak. So the same protocol runs twice on every store, by... - Source: dev.to / about 1 month ago
  • 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 / 6 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 / 8 months ago

View more

Tracking SubmitDirs since Jan 2025.

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