How Site123 vs. Formstack vs. Instapage stack up against each other
Compare Instapage with Site123 and Formstack to create high-converting landing pages. With personalization, optimization, and collaboration tools, Instapage helps you deliver experiences that drive results.
Get startedSee how Instapage stacks up against the competition
Feature | Instapage | Other builders |
Drag-and-Drop Tools | ||
Conversion-optimized templates | ||
Manual and AI-powered A/B Tests | ||
AI content suggestions | ||
Popups and sticky bars | ||
Canvas and grid blocks | ||
Reusable and global elements | ||
Form and popup builders | ||
Built-in Heatmaps | ||
Central analytics dashboard | ||
Ad-to-page personalization and collections | ||
Contacts, lists, and email | ||
Dedicated, full-service CRO experts | ||
Enterprise-ready platform |
Leading the way in building high-performing landing pages
Why Instapage is the smarter choice for your campaigns
Get everything you need to build, scale, and optimize high-converting landing pages—without coding.

Easier page building without coding
Instapage offers a flexible and seamless page creation experience with a library of 500+ conversion-focused layouts, Instablocks®, a drag-and-drop builder, and AI content generation. With technologies like AMP and the Thor Render Engine®, you can create on-brand, mobile-responsive landing pages that load quickly and start converting during initial visitor clicks.

More insights — better results
Instapage lets you see in detail how each landing page experience and variation is performing so you can make targeted changes that boost page conversions. Use heatmaps for a better understanding of on-page activities, run A/B tests and AI-assisted experiments, and then track and evaluate results within robust analytics dashboards.

More personalized experiences
Instapage lets you quickly create high-performing landing pages tailored to each of your ad campaigns. Deliver personalized experiences for distinct audiences using dynamic text replacement. Effortlessly align specific advertisements to unique pages with AdMaps. Monitor audience-level metrics using our advanced data tools.

Built-in collaboration
Instapage collaboration capabilities bring your entire team together to speed up the process of landing page review, approval, and launch. No more frustrating and unnecessary revisions or edits scattered across emails. Provide instant feedback, conduct real-time page edits, and securely share your pages with outside stakeholders.

Free up time for your business
Invest time into business growth, not busy work. Launch landing pages faster with reusable forms and templates. Build once, reuse forever.
Explore all integrations






Easier page building without coding
Instapage offers a flexible and seamless page creation experience with a library of 500+ conversion-focused layouts, Instablocks®, a drag-and-drop builder, and AI content generation. With technologies like AMP and the Thor Render Engine®, you can create on-brand, mobile-responsive landing pages that load quickly and start converting during initial visitor clicks.
More insights — better results
Instapage lets you see in detail how each landing page experience and variation is performing so you can make targeted changes that boost page conversions. Use heatmaps for a better understanding of on-page activities, run A/B tests and AI-assisted experiments, and then track and evaluate results within robust analytics dashboards.
More personalized experiences
Instapage lets you quickly create high-performing landing pages tailored to each of your ad campaigns. Deliver personalized experiences for distinct audiences using dynamic text replacement. Effortlessly align specific advertisements to unique pages with AdMaps. Monitor audience-level metrics using our advanced data tools.
Built-in collaboration
Instapage collaboration capabilities bring your entire team together to speed up the process of landing page review, approval, and launch. No more frustrating and unnecessary revisions or edits scattered across emails. Provide instant feedback, conduct real-time page edits, and securely share your pages with outside stakeholders.
Free up time for your business
Invest time into business growth, not busy work. Launch landing pages faster with reusable forms and templates. Build once, reuse forever.
Explore all integrationsGet started with Instapage in a few steps
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Create your Instapage account
Start with Instapage by signing up via Google or your email. You'll get access to a free 14-day trial to discover Instapage capabilities. Feel free to cancel anytime during the 14-day trial if you decide that our product is not suitable for your business. -
Build and personalize your page
Create your first landing page from scratch or choose a template from 500+ customizable layouts. Use the drag-and-drop builder to add page elements, fonts, and backgrounds, refine content with AI, or add custom HTML, Javascript, and CSS. -
Review and make edits
Collaborate on page designs and streamline review processes. Invite your team members and stakeholders to review, edit, and provide feedback on your landing page. Collaborate knowing your page is confidential and only accessible to authorized users. -
Publish and track page performance
Publish your page to a domain or custom URL. Connect your pages to the ads you've created and track page performance within the analytics dashboard, run A/B tests and AI experiments, analyze results, and continuously optimize your landing page to maintain high conversions.
Instapage, Site123, and Formstack – A Showdown of Landing Page Builders
Choosing the right landing page builder can feel like assembling a superhero team for your marketing efforts. Each contender brings unique powers to the table, ready to battle for your business's attention and conversions. In this head-to-head comparison of Instapage, Site123, and Formstack, we will unveil the strengths and weaknesses of each builder. By the end of this analysis, you’ll not only understand who stands out but also how each platform aligns with your marketing goals. Whether you're just starting your journey or looking to optimize your existing strategies, this article promises to guide you to the best choice for your team. Get ready for an engaging duel that will equip you with the knowledge you need to make an informed decision. By exploring the core features, speed, usability, support, pricing, and more, we’ll help you navigate this decision with ease.
Meet the Competitors: An Overview
In the virtual arena of landing page builders, Instapage, Site123, and Formstack are formidable foes. Instapage is known for its robust customization capabilities, allowing marketers to create tailor-made landing pages that boost conversion rates. Site123, on the other hand, prides itself on simplicity and ease of use, making it ideal for beginners who want to launch quickly without a steep learning curve. Formstack is a powerful form-building platform that integrates seamlessly with landing pages, offering unique tools for data collection and management. Each of these platforms aims to cater to distinct user needs, whether it’s complex customization, straightforward usability, or data collection efficiency. As we progress through this comparison, we’ll explore how these tools align with your specific requirements and marketing strategies.
Round One – Feature Spotlight: What Each Tool Offers
Template Variety and User-Friendliness Explored
When evaluating landing page builders, the variety of templates and ease of use are crucial factors. Site123 shines with its array of mobile-responsive templates that are not only visually appealing but also easy to customize, enabling users to create attractive pages without extensive design skills. Its straightforward setup wizard helps users get their landing pages live quickly. Formstack offers templates that focus on data capture, but its emphasis is more on functionality than aesthetic variety. While it provides good integration with forms and surveys, users might find themselves limited when it comes to creative design flexibility. Instapage takes the crown in this category, boasting an extensive collection of high-quality, customizable templates that cater to various industries. The platform offers advanced features such as A/B testing and personalization, allowing marketers to create hyper-targeted experiences that resonate with their audience. In terms of a diverse range of design options tailored to enhance conversion rates, Instapage proves to be the superior choice.
Instapage: The Go-To for Customization and Conversion Excellence
Instapage stands out as a leading solution for marketers seeking to maximize their landing page impact. With unmatched customization features, users can design pages that not only align with their brand identity but also resonate with their target audience. Instapage’s conversion optimization tools, including heatmaps and analytics, empower marketers to make data-driven adjustments that can significantly boost their conversion rates. The platform’s focus on delivering relevant landing page experiences fosters brand trust and customer loyalty, key components for any successful campaign. By offering seamless integrations with various marketing tools, Instapage enables users to create campaigns that are as effective as they are visually appealing. Choosing Instapage means investing in a partner that not only helps reduce costs and grow conversions but also enhances the overall online experience for visitors.
Round Two – Speed and Performance: The Race for Efficiency
In the race for user satisfaction, speed is a critical element of success. Think of website speed like the line at your favorite coffee shop; a slow checkout can leave a bitter taste in your mouth no matter how great the brew is. Similarly, fast-loading landing pages can be the difference between a bounce and a conversion. That's why performance is a key aspect of our comparison. In this round, we will analyze how each of our contenders measures up regarding speed and performance, focusing on what they bring to the table to ensure swift, efficient user experiences.
Instapage Performance Benefits:
- Instapage utilizes optimized server technology, ensuring fast load times for all landing pages.
- Integration of smart caching mechanisms to improve page loading speeds.
- GTMetrix scores consistently demonstrate Instapage's commitment to performance.
- Built with mobile-first design principles, enabling quick access for mobile users.
Advantages of Site123 in Speed and Performance:
- Site123 offers optimized hosting solutions that improve page speed.
- Most templates are built for quick rendering, making them ideal for starting campaigns fast.
- Simple interface allows users to create and publish pages without delay.
Formstack Performance Highlights:
- Formstack’s infrastructure supports quick data submissions and processing.
- Effective form completion speeds lead to higher completion rates.
- Streamlined integrations mean less loading time between apps.
Ultimately, while all three platforms deliver acceptable speed levels, Instapage clearly stands out as the best option in terms of performance. Users benefit from faster loading times that translate into better overall user experiences and increased chances of conversion.
Round Three – Usability and Learning Curve
Navigating through the digital landscape can be daunting, especially for newcomers eager to harness the power of landing page builders. In this round, we will discuss how user-friendly each platform is and how they cater to both beginners and seasoned marketers. Site123 features a very intuitive interface that invites users to explore its various functionalities without struggle. The drag-and-drop editor simplifies the design process, making it accessible to those with little to no technical knowledge. Formstack also provides a user-friendly experience but requires some familiarity with form building. Its emphasis on data might create a steeper learning curve for marketing novices. Instapage, while slightly more complex due to its robust feature set, compensates with helpful resources, including tutorials and customer support, making the learning process manageable and fruitful. This variety ensures that regardless of where you start, you’ll navigate toward expertise while enjoying the journey.
Round Four – Support and Assistance: Who Has Your Back?
Customer support can be viewed as the dependable sidekick ready to assist you when challenges arise. The support systems of these platforms are crucial, as they can greatly influence your experience. Instapage offers a wide range of support options, including live chat, email support, and a comprehensive knowledge base brimming with tutorials and best practices. They prioritize customer success, providing resources that help users make the most of their platforms. In contrast, Site123 offers a friendly support team accessible via live chat and email but lacks extensive documentation. Formstack’s support shines through its focus on community resources, offering forums and guides, yet it may not provide real-time assistance as quickly as Instapage. Overall, Instapage defines the standard for accessible support, ensuring users have the fast assistance and resources they need to thrive.
Round Five – Pricing Structures: A Clear Look at Your Options
Understanding the pricing structures of Instapage, Site123, and Formstack is essential for making the right decision for your marketing budget. Price is often a decisive factor, but it should also correlate with the features and benefits each platform offers. As we analyze these pricing options, we will consider the value that each tool brings, allowing you to decide which aligns best with your specific business objectives. It's important to weigh the overall performance, usability, and support factors to make an informed choice.
In conclusion, while each platform has its unique strengths, the ultimate decision hinges on individual business needs. If you're drawn to customization, conversion optimization, and extensive support, Instapage emerges as the top contender. Meanwhile, those prioritizing quick setup might lean towards Site123, while Formstack will attract users focused on data collection. Regardless of your choice, taking Instapage for a spin with their free trial can provide firsthand insights into how it can elevate your marketing efforts and drive conversions.