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httpSMS VS ALTCHA

Compare httpSMS VS ALTCHA and see what are their differences

httpSMS

Convert your Android phone into an SMS gateway to send an receive text messages

Rating
0 reviews
Pricing
Open source Freemium $10 / Monthly (5000 SMS per month)
Alternatives Is it good?
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
Alternatives Is it good?
KeptPDF
Redact, edit, OCR, and sign PDFs entirely in your browser. The file never leaves your device. Free, no account needed. 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
0 vs 4
SMS popularity
100% vs 0%
alternatives listed
43 vs 48

Base details

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

httpSMS
ALTCHA
Website httpsms.com altcha.org
Pricing
Open source Freemium $10 / Monthly (5000 SMS per month) Official pricing
Open source Free
Platforms —
Web REST API
Company 2022 —
Listed in
Communication Text Messaging SMS Bulk Sms +1
Security & Privacy SPAM Protection Anti-Spam Captcha SPAM API +2

About httpSMS and ALTCHA

In their own words, as submitted to SaaSHub.

httpSMS
ALTCHA

httpSMS is a service that lets you use your Android phone as an SMS Gateway to send and receive SMS messages. You make a request to a simple HTTP API and it triggers your Android phone to send an SMS. SMS messages received on your android phone can also be forwarded to your webhook endpoint.

Read more about httpSMS

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

Features and specs

What each product offers, as listed by its team.

httpSMS 5 features
ALTCHA 9 features
  • Scalability
    httpSMS offers a scalable solution that can handle a large number of messages, making it suitable for businesses of all sizes.
  • API Integration
    The service provides robust API integration capabilities, allowing businesses to easily integrate SMS functionality into their existing systems.
  • Global Reach
    httpSMS allows for sending messages internationally, which is beneficial for businesses with a global customer base.
  • Real-time Delivery Reports
    Users can access real-time delivery reports to track the status of messages sent through the platform.
  • Reliable Uptime
    The service boasts reliable uptime, ensuring that messages are sent and received without significant downtime.

Possible disadvantages

  • Cost Structure
    The pricing model may be complex for some users, with potential additional costs for international messaging or premium features.
  • Learning Curve
    New users may experience a learning curve when integrating and using the platform's features effectively.
  • Limited Features for Small Businesses
    Small businesses might find the feature set more than they require, potentially leading to underutilization of the service.
  • Customer Support
    Some users may experience delays or challenges when reaching customer support for assistance.
  • Privacy Concerns
    As with any SMS service, there could be concerns regarding the privacy and security of message data, particularly when dealing with sensitive information.
  • 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.

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
httpSMS
ALTCHA
100% 100%
SMS
0% 0%
0% 0%
SPAM Protection
100% 100%
100% 100%
Sms Gateway
0% 0%
0% 0%
Captcha
100% 100%

Questions & Answers

As answered by people managing httpSMS 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?

httpSMS's answer

Go, Vuetify, Google Cloud

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 httpSMS and ALTCHA. 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.

httpSMS 0 mentions
ALTCHA 4 mentions

Tracking httpSMS since May 2024.

  • 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 / 12 days 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 / 5 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 / 7 months ago

View more

Alternatives to httpSMS and ALTCHA

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

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