StarterKitPro vs. ZapKit Comparison Chart

Auth0 takes a modern approach to Identity, providing secure access to any application, for any user. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation. Auth0 is part of Okta, The World’s Identity Company™. Auth0 lets you quickly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control. Authenticate users across all applications with a customized, secure, and standards-based single login. Universal Login connects users to a central authorization server. Credentials aren’t transferred across sources, which boosts security and protects against phishing and credential stuffing attacks. OAuth 2.0 recommends that only external user agents (like the browser) be used by native applications for authentication flows. Auth0’s Universal Login achieves this while enabling SSO.

FusionAuth is a modern, developer-focused identity and access management platform built to give you full control over your authentication stack. Whether you’re building a startup app or managing enterprise-scale infrastructure, FusionAuth delivers all the must-have features — from login and SSO to advanced protocols like OAuth2, OIDC, SAML, and WebAuthn — in a self-hostable or cloud-native package. Designed with developers in mind, FusionAuth integrates seamlessly with any language, framework, or architecture. Every capability is API-first and built for extensibility, so you can tailor authentication workflows without getting locked into rigid, inflexible systems. FusionAuth supports all the key use cases — user registration, multi-factor authentication (MFA), passwordless login, role-based access control, and more — while helping you stay compliant with GDPR, HIPAA, PCI, and other regulatory standards.

Penji is an unlimited on-demand graphic design service. We primarily work with brands that either don’t have the time to do all of the designs themselves OR do not have the means to afford an in-house hire. We work best with agencies where we can help minimize design inefficiencies. We also work with solopreneurs to optimize their time so they can get back to focusing on their business needs. Oh and our service is billed monthly, no contract, and only pay a flat monthly rate.

LeanData’s GTM Orchestration Platform helps B2B teams simplify complex processes, connect siloed tools, and take faster action across the entire buyer journey. With no-code automation and node-level integrations, LeanData makes it easy to match, route, assign, and schedule leads — while adapting to changes in your strategy, tech stack, or territory design. Trusted by companies like Nvidia, Cisco, and Palo Alto Networks, LeanData empowers GTM teams to operate with speed and precision — capturing more revenue, improving conversions, and delivering better customer experiences from first touch through closed-won and beyond.

OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are. Whether you are trying to track PTO or hold performance reviews, you get all of the tools you need to shine. Thousands of businesses around the world are benefitting from OrangeHRM as their HR management software. It doesn’t matter whether you are in the start-up stage or a multinational organization, our free & open source HR software, the OrangeHRM Starter version will help you be the HR hero you know you are with powerful HR management capabilities which include: - Employee Management - Leave Management - Reports & Analytics - Performance Management - HR Administration - Recruitment (ATS) - Time Tracking - Mobile App You can use the OrangeHRM Starter edition on the cloud or download it and host it yourself.

GetResponse provides all-in-one marketing software that empowers marketers, solopreneurs, coaches, creators, and small business owners with affordable, easy-to-use tools for email marketing, marketing automation, and content monetization. With over 25 years of expertise, GetResponse goes beyond email with tools to help grow and engage audiences, create and sell courses, and turn ideas into income. It’s the go-to solution for building a personal brand, selling products and services, and fostering a loyal community.

The dedicated software for skip tracing from the world’s authority in case management systems. TraceEngine is the one tool you need to make skip tracing easier, faster, and more effective. It is powered by the PoloniousEngine and benefits from 20 years of experience in world-class investigation software and system delivery. Being cloud-based means hosting and security are taken care of, and can you be up and running in less than 10 minutes, with your first 30 days free. You’ll get access to our ongoing support for just $165 each month and with no lock-in contracts you can cancel anytime. TraceEngine is packed with powerful features specifically designed for skip tracing letting you manage more cases and generate more business. A simple search and pick tool lets you easily allocate cases to investigators. If they are not already in the system then a simple widget will pop up to let you add the required details.

Protect yourself with military-grade encryption, and access sites and streaming content around the world. Hotspot Shield encrypts your connection and doesn’t log any data that could be tied to you, shielding your identity and info from hackers and cyber predators. With servers across 80+ countries and 35+ cities, our proprietary Hydra protocol optimizes your VPN to ensure fast, secure connections for gaming, streaming, downloading, P2P, and more.

The Windsurf Editor is a free AI-powered IDE and AI coding assistant that accelerates development by providing intelligent code generation and agents in over 70 programming languages and more than 40 IDEs, including VSCode, JetBrains, and Jupyter Notebooks. With Windsurf, developers can write code faster, eliminate repetitive tasks, and stay in the flow state—whether they're working with Python, JavaScript, C++, or any other language. Built on billions of lines of open-source code, Windsurf Editor understands and anticipates your coding needs, offering multiline suggestions, automated unit tests, and even natural language explanations for complex functions. It’s perfect for streamlining code writing, reducing boilerplate, and cutting down the time spent on documentation searches. Trusted by individual developers and Fortune 500 companies alike, Windsurf Editor is your go-to solution for boosting productivity and writing better code. Try Windsurf for free today!

Klaviyo is the AI-first B2C CRM platform that helps you grow by integrating marketing, analytics, and customer service in one solution. Powered by unified data and built-in AI, it's faster and easier than ever to create personalized, lasting customer relationships. Klaviyo unifies your customer profiles by capturing every event, and then lets you orchestrate your email marketing, SMS marketing, push notifications, WhatsApp, and RCS campaigns in one place. Built-in AI agents plan and launch campaigns, personalize every send, answer questions, and resolve issues. With real-time attribution and insights, you'll be able to make smarter, faster decisions that drive ROI. Trusted by more than 170,000 businesses, Klaviyo can grow your business while keeping operations simple and customer relationships strong