4 in 1
ASP.NET Zero provides different architecture/framework options (all included in the standard price).

#1
ASP.NET Core and Angular based Single-Page Application (SPA) solution for your web application.

#2
ASP.NET Core and jQuery based MVC solution for your web application.

#3
MAUI & Blazor hybrid mobile application integrated with the backend solution (only for ASP.NET Core (MVC or Angular UI) versions, supports iOS & Android).

#4
ASP.NET MVC based application for your public web site.

Multi-Tenancy
Complete SaaS development kit

• Tenant and Edition (package) management for SaaS applications
• Subscription management & recurring payments
• PayPal & Stripe integration
• Basic invoice for payments
• Dashboard for edition, tenant & income statistics
• Single database, database per tenant and hybrid database support
• Custom tenant logo and CSS support
• Can work in multi-tenant and single-tenant modes

Authentication & Authorization
Rich login options and complete authorization system

• Based on ASP.NET Identity Framework
• User & role management pages
• Hierarchical organization units system to group users and entities
• User login, register, password-reset and email validation pages
• User, role and permission based flexible authorization
• User and Tenant impersonation
• User account linking
• Two Factor Authentication (Email, SMS, Google Authenticator)
• User Lockout
• LDAP/Active Directory login support
• Active Directory Federation Service (ADFS) Authentication
• Social media logins (Facebook, Twitter, Google+ and Microsoft Account implemented)
• OpenId Connect Authentication
• Log and show all login attempts for users
• Password complexity settings
• Automatic Cross-Site Request Forgery (CSRF) protection
• IdentityServer4 integration
• User Delegation
• Session Timeout and Lock Screen
• Multitenant LDAP support

Rapid Application Development
Let it create basic UI for you

• A Visual Studio extension (and command line tool) to create an entity from the database to the UI layer by just defining its properties. See how it works.
• Templating support to generate customized code

HTTP API
API for Clients

• HTTP/REST API for all the application functionalities.
• GraphQL API infrastructure for 3rd-party clients.

Mobile Application
Integrated, cross-platform MAUI Application

• Cross-platform (iOS & Android) MAUI mobile application
• Integrated with the backend API
• Provides infrastructure for common development tasks

Dynamic UI Localization
Control Localization in your application

• Fully localized UI
• Can add, remove and translate languages on UI
• RTL and LTR support
• English, Chinese, German, French, Italian, Russian, Portuguese (Brazil), Spanish (Mexico), Spanish (Spain), Turkish and Arabic localizations are included

Setting Management
Manage the application settings

• Host & tenant-specific setting pages
• Hierarchical setting management infrastructure
• Easily configurable

Solid Architecture
Built with best practices

• Clean source code in a well-defined solution structure
• Layered & modular architecture
• Domain Driven Design implementation
• Dependency injection everywhere

Based on Strong Frameworks
Built on tools you already know

• .NET Framework 4.6.x / .NET Core 6.x (cross-platform support)
• ASP.NET Core / ASP.NET MVC & Web API
• EntityFramework Code-First and Migrations
• Angular, Bootstrap, AutoMapper...
• ASP.NET Boilerplate

Based on Metronic Theme
The world's most trusted UI theme

• Metronic 8 based
• Bootstrap 5 based
• Responsive design
• Multiple layout options
•  See Metronic UI and components

Cross-Cutting Concerns
Automates repeating tasks... DRY!

• Validation
• Logging
• Exception handling
• Caching
• Automatic audit/security logging
• Automatic database connection management and unit of work implementation
• Periodic Audit Log Deletion

Automated Testing
Testabiliy is so important

• Testable architecture
• Includes unit & integration test written with xUnit
• Includes UI tests written with Playwright

And More...
Other highlights

• Webhook Feature
• Customizable Dashboard System
• Dynamic Entity Properties
• Pre-configured to deploy as Docker containers
• Real-time push notification system (with SignalR integration)
• Real-time chat system (with SignalR integration)
• Background job system (with Hangfire integration)
• Multiple time zone support for application, tenants and users
• Twilio integration option for sending SMS
• Show and download logs from UI
• Built-in global event bus for server-side events with pre-defined events for entity changes)
• Show entity histories
• Cookie consent & download users collected data (GDPR)
• Application setup screen
• Personalization of layout, header, menu and footer per user
• Swagger integration
• Tested on major PAAS providers (Azure, AWS)
• Healthchecks
• Helm charts for deployment

[1] Lifetime usage, no limit on deployment or server counts. 

[2] Access to the latest source code on GitHub, create/recreate your project on any architecture in the given period of time.