Software Alternatives, Accelerators & Startups

NOWPayments VS Stack Auth

Compare NOWPayments VS Stack Auth and see what are their differences

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NOWPayments logo NOWPayments

NOWPayments is a crypto payment gateway that supports more than 300 cryptocurrencies, including fiat, and offers simple tools to accept crypto payments, like a crypto payments API, plugins, invoices.

Stack Auth logo Stack Auth

Open-source Auth0/Clerk Alternative
  • NOWPayments Landing page
    Landing page //
    2023-07-09

NOWPayments is a crypto payment gateway that lets all types of businesses accept payments in 300+ cryptocurrencies, with auto coin conversion and fiat conversion available.

Pricing: 0,5% transaction fee + 0,5% exchange fee if exchange is needed. The platform also supports fiat conversion: allowing users to pay in fiat currencies, and merchants to accept crypto, and vice versa.

NOWPayments offers tools for accepting payments: - API - Invoices - Billing (recurring payments) - E-commerce plugins - Web-based point-of-sale for physical stores

NOWPayments also has donation tools: - Donation button (customizable) - Donation widget - Customizable donation link - Donation button for Twitch streamers

NOWPayments has a solution for payouts: mass payouts + custody if needed

NOWPayments has developed a special custody solution: allowing merchants to create and manage deposit accounts for their customers

NOWPayments offers customized solutions for different industries: - Gaming - Gambling - Trading Platforms - Adult Industry - PSP - E-commerce T- oken Generation Events - and we can develop custom solutions for your needs.

Benefits - 250+ assets available for cross-chain payments (converted automatically) - and more coming - Listing requests accepted - Instant settlements - Fixed rate - Low fees - Micropayments possible - Fiat on/off ramp possible - Customizable solutions for industries - 24/7 support - Personal Account managers - Non-custodial and custodial flows available - Part of a bigger NOW ecosystem: ChangeNOW exchange service, NOWNodes, NOW Wallet, etc - Marketing support

NOWPayments is a non-custodial payment gateway, which means that all your payments will be instantly transferred to your own wallet that only you can have access to.

Not present

NOWPayments features and specs

  • Wide Range of Supported Cryptocurrencies
    NOWPayments supports over 50 cryptocurrencies, allowing merchants and users to transact using their preferred digital assets.
  • Merchant Tools and Plugins
    NOWPayments offers a variety of integrations including APIs, an invoicing system, and plugins for popular e-commerce platforms like WooCommerce, Magento, and Shopify.
  • Non-Custodial Service
    Funds go directly to the merchant's wallet, ensuring greater security and reducing the risk associated with centralized platforms.
  • Low Fees
    The platform offers competitive transaction fees starting at 0.5%, making it an affordable choice for businesses.
  • Auto Coin Conversion
    Merchants can automatically convert received cryptocurrencies into a more stable asset or their preferred cryptocurrency.

Possible disadvantages of NOWPayments

  • Customer Support
    Although generally reliable, some users have reported delays in customer support response times during peak periods.
  • Regulatory Uncertainty
    As with any cryptocurrency service, the platform operates in a regulatory gray area in some jurisdictions, which could lead to potential compliance challenges.
  • Dependency on Cryptocurrency Volatility
    The value of cryptocurrencies can be highly volatile, posing risks for both merchants and customers in terms of transaction value fluctuations.
  • Relatively New Service
    As a relatively new player in the market, the platform may lack the extensive track record and reliability compared to more established providers.

Stack Auth features and specs

No features have been listed yet.

Analysis of NOWPayments

Overall verdict

  • NOWPayments is considered a reliable and beneficial service for cryptocurrency payments by many users.

Why this product is good

  • NOWPayments is praised for its ease of use, allowing businesses to accept a wide range of cryptocurrencies with simple integration processes. It offers competitive transaction fees and supports automatic conversion to fiat currencies, providing flexibility for businesses. Additionally, its non-custodial nature enhances security, as it does not hold the funds but directly transfers them to the merchant's wallet.

Recommended for

    NOWPayments is highly recommended for online businesses, e-commerce platforms, and any merchants looking to expand their payment options to include cryptocurrencies. It is especially beneficial for those who value security, seek to reach a global customer base, and want to offer flexible payment choices.

NOWPayments videos

What is NOWPayments

More videos:

  • Review - What is NOWPayments? | Accept Crypto Payments | Crypto Merchant Processor | Process Crypto Payments
  • Tutorial - How to Setup NOWPayments Crypto Donation Button on Your Website (2021)

Stack Auth videos

W18D3 C3: Full Stack Auth Review: User/Computer Order & Developer Build Order

Category Popularity

0-100% (relative to NOWPayments and Stack Auth)
Cryptocurrencies
100 100%
0% 0
Identity And Access Management
Crypto Payments
100 100%
0% 0
Identity Provider
0 0%
100% 100

Questions & Answers

As answered by people managing NOWPayments and Stack Auth.

What makes your product unique?

NOWPayments's answer

300+ currencies, cross-chain payments, fiat on-ramp and off-ramp. Multiple crypto payment tools, custom solutions for various industries.

Why should a person choose your product over its competitors?

NOWPayments's answer

  • lower fees
  • more currencies supported
  • 24/7 support
  • transparent fee system, no hidden fees
  • listing possibilities
  • custom features

How would you describe the primary audience of your product?

NOWPayments's answer

Businesses and individuals that would like to accept crypto

Who are some of the biggest customers of your product?

NOWPayments's answer

For example, Travala crypto travel platform

User comments

Share your experience with using NOWPayments and Stack Auth. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare NOWPayments and Stack Auth

NOWPayments Reviews

Best Crypto Payment Gateways 2024
In the ever-evolving landscape of digital transactions, choosing the right payment gateway is paramount for businesses aiming to leverage the power of cryptocurrencies. As the market matures, demands for reliability, security, and efficiency have soared, making it imperative for businesses to align with the best-in-class solutions. Among the myriad of options available,...
Source: bitcoinist.com
9 Best Cryptocurrency Payment Gateways Reviewed [January 2023]
NowPayments is a well-known crypto payment gateway established by ChangeNow, one of the top crypto swapping sites, in 2019. The platform offers low transaction fees and also offers non-custodial services for users who would like to have complete control over their funds. Businesses can easily integrate NOWPayments API to their platforms and benefit from its additional tools...
Source: coingape.com

Stack Auth Reviews

We have no reviews of Stack Auth yet.
Be the first one to post

Social recommendations and mentions

Based on our record, NOWPayments seems to be a lot more popular than Stack Auth. While we know about 67 links to NOWPayments, we've tracked only 4 mentions of Stack Auth. 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.

NOWPayments mentions (67)

  • Want to accept crypto for my business, how to handle it best?
    I looked at this for my business as well, I ended up using crypto.com which to date nobody has used and https://nowpayments.io/ which many people have used. Source: over 2 years ago
  • Looking where to buy some hoge?
    Https://nowpayments.io/ Have a store and want to accept crypto such as HOGE? NowPayments has you covered. Source: about 3 years ago
  • NowPayments.io adding PLS soon means PLS payments on: Shopify, WooCommerce, Brick & Mortar POS Terminals, Donation Websites, Casinos, Fiat On Ramps and much more!
    It's looking like PowerCity's PixelPark is trying to beat Mintra to market as the first major NFT Marketplace soon on PulseChain as they have partnered with NowPayments.io to handle their payment processing:. Source: about 3 years ago
  • FOSS PayPal/Stripe?
    This is as close to foss as I can get my payment processing right now. I love it but it obviously limits the purchaser pool…. Source: over 3 years ago
  • Launching a business website, Need to integrate Crypto payment options
    I have a buddy who uses https://nowpayments.io/ and likes it. Source: over 3 years ago
View more

Stack Auth mentions (4)

  • I Tested 7 Open Source Clerk Alternatives for Full-Stack Developers
    Five minutes. That's how long Stack Auth takes to set up. - Source: dev.to / 9 months ago
  • Ask HN: Who is hiring? (September 2025)
    Stack Auth (S24) | San Francisco, CA | Full-time Hiring founding & design engineers! We're building the customer platform for developers — think of a single service that does auth, payments, analytics, marketing emails, and so much more. We're selling to developers & startups so our audience is right here on this website! If you're in San Francisco and frequent Hacker News, that's enough of a reason to DM me on... - Source: Hacker News / about 1 year ago
  • Building Multi-Tenant Apps Using StackAuth's "Teams" and Next.js
    StackAuth is an open-source authentication and user management platform designed to integrate seamlessly into Next.js projects. Its combination of frontend/backend APIs and pre-built UI components dramatically simplifies the integration of such capabilities into your application. Similarly, its newer "Teams" feature provides an excellent starting point for creating multi-tenant applications. In this post, we'll... - Source: dev.to / over 1 year ago
  • Stack Auth (YC S24), the open-source Auth0 alternative, is hiring Founding SWEs
    Hi HN! We're building Stack Auth (https://stack-auth.com/), an open-source managed authentication and authorization platform. Basically, we build your login and signup pages, and everything that comes with that. You can find our customer pitch elsewhere, so instead I'll tell you more about us and the company. We are developers building for other developers, so you can think of... - Source: Hacker News / almost 2 years ago

What are some alternatives?

When comparing NOWPayments and Stack Auth, you can also consider the following products

BitPay - Bitcoin payment gateway. Enterprise-grade solutions, from the pioneer of bitcoin payments.

Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.

CoinGate - CoinGate is a payment gateway for Bitcoin, XRP, Litecoin, Ethereum and 50 other cryptocurrencies.

Keycloak - Open Source Identity and Access Management for modern Applications and Services.

CoinPayments - Payment gateway providing buy now buttons, shopping carts, and more to accept Bitcoin, Litecoin, and other cryptocurrencies/altcoins on your website/online store.

Clerk - Clerk.io, the artificial intelligence for e-commerce that knows your customers interests.