
Microsoft Outlook
Mailbird
eM Client
Postbox
Mailspring
Apple Mail
ProtonMail
Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Keyforge.dev
Keygen
Cryptlex
LicenseSpring
SLASCONE
Signal Lynx - Key Commander
Vyoma SaaS License Management
Create, implement, manage, and sell software licenses—with an API, 8 SDKs, a built-in Store, and 0% commission.

Which is more popular?
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | thunderbird.net | permitcore.dev |
| Pricing | — | |
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Thunderbird yet.
PermitCore is a software licensing platform for independent developers and software teams. It covers the complete create → implement → sell workflow in one place. Teams can create and manage license keys, devices, activations, entitlements, expiration, revocation, subscriptions, and offline or...
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
Thunderbird Review Holiday World Launched Wing Coaster
More videos
Presentation
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Thunderbird and PermitCore.dev.
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.
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.
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.
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.
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.
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.
Share your experience with using Thunderbird and PermitCore.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Mozilla Thunderbird is an open-source email client developed by the Mozilla community. For people who like having their email offline, a range of customization options, robust data protection and privacy features, and...
Thunderbird’s interface takes a hint from Mozilla Firefox and other popular browsers and lets you open multiple emails in separate tabs. There are a lot of options to customize the look and feel of your inbox, as well...
Thunderbird is an open-source, cross-platform email suite. It is one of the best Mac mail applications that provides easy to use wizard for setting account. This software helps you to personalize the email the way you...
We have no reviews of PermitCore.dev yet. Be the first one to post
When comparing Thunderbird and PermitCore.dev, you can also consider the following products.

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Compare Microsoft Outlook to Thunderbird or PermitCore.dev:

The easiest solution for license management. With Stripe integration and a self-serve customer portal.
Compare Keyforge.dev to Thunderbird or PermitCore.dev:

Mailbird is the best email client for Windows 7, 8 and 10
Compare Mailbird to Thunderbird or PermitCore.dev:

A dead-simple software licensing API built for developers
Compare Keygen to Thunderbird or PermitCore.dev:

eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.
Compare eM Client to Thunderbird or PermitCore.dev:

Cryptlex is an IT Management software, designed to help you maximize the revenue potential of your software by protecting you against software piracy.
Compare Cryptlex to Thunderbird or PermitCore.dev: