Software Alternatives & Startups

PermitCore.dev VS Duo Security

Compare PermitCore.dev VS Duo Security and see what are their differences

PermitCore.dev

Create, implement, and sell software licenses in one platform—with an API, six SDKs, a built-in Store, and no sales commission.

Rating
0 reviews
Pricing
Freemium Free trial €29 / Monthly (Starter plan)
Duo Security

Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.

Rating
0 reviews

Which is more popular?

Based on our record, Duo Security seems to be more popular. It has been mentioned 33 times since March 2021.

social mentions
0 vs 33
License Management popularity
100% vs 0%
alternatives listed
7 vs 240+

Base details

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

PermitCore.dev
Duo Security
Website permitcore.dev duo.com
Pricing
Freemium Free trial €29 / Monthly (Starter plan) Official pricing
Platforms
Web
Listed in

About PermitCore.dev and Duo Security

In their own words, as submitted to SaaSHub.

PermitCore.dev
Duo Security

PermitCore is a software licensing platform built for independent developers and software teams. It started from a problem we had ourselves: adding licensing to an application meant building and maintaining a second system for license keys, activations, expiry rules, customer access, and...

Read more about PermitCore.dev

No description of Duo Security yet.

Features and specs

What each product offers, as listed by its team.

PermitCore.dev 6 features
Duo Security 6 features
  • Complete licensing lifecycle
    Create, implement, and sell software licenses from one platform.
  • Built-in License Store
    Sell licenses directly with Stripe automation and no PermitCore sales commission.
  • Flexible license models
    Online, offline, floating, node-locked, subscription, metered, and perpetual licensing.
  • Reseller Program
    Give resellers a dedicated dashboard to track customers, sales, and earnings.
  • Customer Portal
    Customers can view and validate licenses, manage devices, and handle access without contacting the vendor.
  • REST API and six SDKs
    Integrate licensing with .NET, Node.js, Python, Java, C++, or PHP.
  • Easy Integration
    Duo Security offers seamless integration with a wide range of applications and services, making it easier for organizations to implement multi-factor authentication (MFA).
  • User-Friendly
    The platform is designed with simplicity in mind, providing a straightforward user experience for both end-users and administrators.
  • Comprehensive MFA Options
    Duo supports a variety of authentication methods including push notifications, biometrics, and hardware tokens, giving users flexibility in how they authenticate.
  • Strong Security Features
    Duo incorporates advanced security features such as device health checks and endpoint visibility, enhancing the overall security posture of an organization.
  • Good Customer Support
    Duo Security is known for its responsive and knowledgeable customer support, helping organizations address issues quickly.
  • Scalability
    The platform can easily scale to accommodate organizations of varying sizes, from small businesses to large enterprises.

Possible disadvantages

  • Cost
    The service can be expensive compared to other MFA solutions, particularly for smaller organizations with limited budgets.
  • User Management Complexity
    Managing a large number of users can become complex, particularly in organizations with high employee turnover.
  • Dependency on Mobile Devices
    Many of Duo's authentication methods rely on mobile devices, which can be inconvenient or impractical for users without access to smartphones.
  • Learning Curve
    Despite being user-friendly, there is still a learning curve for administrators new to the platform, particularly for advanced features.
  • Internet Dependence
    The service requires a reliable internet connection to function properly, which can be a limitation in areas with poor connectivity.
  • Limited Offline Options
    Duo Security has limited options for offline authentication, which may pose challenges in environments where internet access is intermittent.

Videos

Walkthroughs and reviews on video.

PermitCore.dev 4 videos + Add
Duo Security 3 videos + Add

Presentation

More videos

  • - Add License Validation to a C# App with PermitCore
  • - Create a product
  • - Add licence validation

What is DUO Security 2FA and How it Works With Windows Remote Desktop

More videos

  • - Powerful New Features from Duo Security
  • - An Introduction to Duo Security

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
PermitCore.dev
Duo Security
100% 100%
0% 0%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing PermitCore.dev and Duo Security.

What makes your product unique?

PermitCore.dev's answer

PermitCore gives software teams one complete path from creating licenses to implementing licensing and selling their product. Developers can generate and manage licenses, integrate them through the REST API or SDKs, and sell licenses directly through a built-in Store without paying PermitCore a commission. It also supports online and offline licensing, floating and node-locked licenses, device limits, entitlements, subscriptions, customer and reseller portals, and Stripe automation. Underneath that workflow is a security model where license keys are encrypted in the browser before storage and usable keys are never persisted in plaintext. A permanent free plan is available for indie developers.

Why should a person choose your product over its competitors?

PermitCore.dev's answer

Choose PermitCore when you want one platform for the full licensing lifecycle instead of several disconnected tools. You can create and manage licenses, implement licensing through the REST API or SDKs, and sell licenses directly through a built-in Store. PermitCore takes no commission on those software sales. It also covers device management, online and offline use, floating seats, entitlements, subscriptions, customer and reseller portals, and Stripe automation. Browser-side encryption keeps usable license keys out of plaintext storage. PermitCore is EU-hosted, supports Enterprise self-hosting, includes a permanent free plan, and gives every paid plan a three-month free trial.

How would you describe the primary audience of your product?

PermitCore.dev's answer

PermitCore is primarily for indie developers, SaaS founders, small software teams, agencies, and established software vendors that want one complete path from creating licenses to implementing licensing and selling the finished product. Teams can create and manage licenses, integrate them through the REST API or SDKs, and then sell licenses directly through the built-in PermitCore Store without paying PermitCore a commission on those sales. It supports desktop applications, APIs, developer tools, plugins, and other paid software, with online, offline, floating, subscription, metered, and perpetual licensing. The permanent free plan helps developers get started, while larger teams can grow into reseller management, self-hosting, and custom roles.

What's the story behind your product?

PermitCore.dev's answer

PermitCore started from a problem we kept running into while building our own software. Adding licensing looked simple at first, but it quickly became another product to maintain: secure key storage, validation APIs, device limits, offline use, subscriptions, customer access, payments, and support all needed their own infrastructure. We built PermitCore so developers could handle that complete journey in one place: create and manage licenses, implement them through an API or SDK, and sell them directly through a built-in Store with no commission taken by PermitCore. What began as an internal solution became a developer platform designed to let other teams focus on the software they actually want to build.

Which are the primary technologies used for building your product?

PermitCore.dev's answer

PermitCore is built on .NET 10. The backend uses ASP.NET Core, Entity Framework Core, and PostgreSQL, while the administration panel and public website use Blazor WebAssembly. Valkey handles caching and distributed coordination, and the platform is deployed with Docker and Nginx. Stripe powers subscription and Store payment automation. For licensing security, PermitCore uses established cryptographic primitives including AES-256-GCM for browser-side encryption, HMAC-SHA256 for validation, and Argon2/PBKDF2 where appropriate for key derivation and credential protection. Client SDKs are available for .NET, Node.js, Python, Java, C++, and PHP.

Who are some of the biggest customers of your product?

PermitCore.dev's answer

PermitCore is an early-stage startup, and we do not publish customer names without their explicit permission. Our current users include indie developers, SaaS founders, agencies, and software vendors using PermitCore to create licenses, integrate licensing into their products, and sell licenses through their own built-in Store.

User comments

Share your experience with using PermitCore.dev and Duo Security. For example, how are they different and which one is better?

Log in or Post with

Reviews and articles

External articles and on-site reviews we used to compare the two products.

PermitCore.dev no reviews yet
Duo Security no reviews yet

We have no reviews of PermitCore.dev yet. Be the first one to post

Social recommendations and mentions

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

PermitCore.dev 0 mentions
Duo Security 33 mentions

Tracking PermitCore.dev since Sep 2026.

  • Michigan bill would bar employers from requiring after-hours coms with workers
    Take for example a university. Many of them seem to use Duo[1], which is not something you can replace with Google Authenticator or other TOTP app. They require it for students as well as faculty and staff. Is it reasonable for them to... - Source: Hacker News / 3 months ago
  • How to Enable Duo MFA on GCP Windows VMs for Compliance in 10 Minutes
    The Solution: There are not only one solution to achieve the goal, but this time we choose Cisco Duo as the MFA infrastructure. - Source: dev.to / 8 months ago
  • A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
    Duo.com — Two-factor authentication (2FA) for website or app. Free for ten users, all authentication methods, unlimited, integrations, hardware tokens. - Source: dev.to / over 2 years ago

View more

Alternatives to PermitCore.dev and Duo Security

When comparing PermitCore.dev and Duo Security, you can also consider the following products.