SubmitraX's answer

SubmitraX is the only form backend that combines a zero-config REST endpoint with AI-generated form templates and a native n8n community node — all in one tool.

Most form backends stop at "we receive your submission and email it to you." SubmitraX goes further:

• AI form generation (Pro): describe your form, get production-ready Tailwind or plain HTML wired to your endpoint instantly
• Per-form Zapier keys: each form has its own key, not a shared account token — cleaner automation, less risk
• n8n community node (n8n-nodes-submitrax): pipe submissions directly into any workflow — HubSpot, Notion, Slack, Google Sheets, 400+ integrations
• Email threading: notifications from the same form group into a single email thread, so your inbox stays clean
• Custom HTML email templates: full control over how notifications look, with dynamic variables
• CSV export: your data is always yours, exportable anytime

Spatius's answer:

Spatius combines photorealistic 3D Gaussian Splatting avatars with a cloud-edge rendering architecture built specifically for real-time AI interaction. Instead of rendering every frame on cloud GPUs and streaming it as video, Spatius sends lightweight motion data to the user’s device, where the avatar is rendered locally.

This approach addresses visual quality, network reliability, device coverage, and operating cost at the same time. It allows digital humans to remain responsive during long conversations, work across web, mobile, and intelligent hardware, and scale to high-concurrency production environments.

SubmitraX's answer

Three reasons:

1. It works with any host. Unlike Netlify Forms (locked to Netlify) or Vercel's form solutions (locked to Vercel), SubmitraX works wherever your site lives — GitHub Pages, Cloudflare Pages, a bare VPS, or any static host.

2. The setup is genuinely 3 steps. Set your form's action attribute to your endpoint URL, make sure inputs have name attributes, add a submit button. No SDK, no API keys, no configuration files. Competitors often require JavaScript SDKs or account-level API tokens.

3. It's built for automation. The n8n node make SubmitraX the only form backend designed to plug into modern workflow tools out of the box — not as an afterthought.

Spatius's answer:

Spatius combines photorealistic 3D Gaussian Splatting avatars with a cloud-edge rendering architecture built specifically for real-time AI interaction. Instead of rendering every frame on cloud GPUs and streaming it as video, Spatius sends lightweight motion data to the user’s device, where the avatar is rendered locally.

This approach addresses visual quality, network reliability, device coverage, and operating cost at the same time. It allows digital humans to remain responsive during long conversations, work across web, mobile, and intelligent hardware, and scale to high-concurrency production environments.

SubmitraX's answer

Developers building static sites, JAMstack apps, and serverless architectures who need form handling without backend infrastructure.

More specifically:

• Freelancers building client sites on Astro, Hugo, Jekyll, or plain HTML who need a reusable form solution across projects
• Agency developers who want one reliable form backend they can deploy on every client site
• Indie hackers and solo founders launching landing pages fast and needing contact or waitlist forms without spinning up a server
• n8n and Zapier power users who want form submissions to trigger automation workflows

Spatius's answer:

Spatius is built for companies and developers creating AI products that benefit from natural, face-to-face interaction. Its primary users include teams working in AI education, recruiting and interviews, customer service, smart terminals, digital assistants, intelligent devices, and AI companion products.

It is especially well suited to organizations that require long-duration conversations, high concurrency, cross-platform deployment, custom-branded characters, or reliable operation on constrained networks and hardware.

SubmitraX's answer

SubmitraX was built by a developer who kept solving the same problem on different projects.

Every static site eventually needs a contact form. And every time, the answer was the same: write a serverless function, configure an email service, handle CORS, deploy it, maintain it. For something that should take five minutes.

After doing this for the third time across different client projects, it became clear the pattern deserved its own tool. SubmitraX started as an internal utility and became a product when other developers kept asking to use it.

The goal has always been the same: get out of your way. You build the site. SubmitraX handles the forms.

Spatius's answer:

Spatius was created to close the gap between digital human demonstrations and real-world deployment. Many avatar technologies can produce an impressive short demo, but become difficult or expensive to operate when conversations last longer, user numbers grow, or products must run across diverse devices and network environments.

The Spatius team developed its own cloud-edge 3DGS technology to solve these production challenges together. Today, Spatius helps companies turn AI into a more natural and expressive presence, bringing real-time digital humans into education, recruiting, smart devices, customer-facing terminals, and companion applications.

SubmitraX's answer

• Backend: Node.js
• Database: PostgreSQL
• Email delivery: transactional email API (for reliable form notification delivery)
• Frontend dashboard: modern JavaScript framework
• Automation: n8n community node published on npm
• Infrastructure: cloud-hosted, globally available endpoint at s.submitrax.com

Spatius's answer:

Spatius is primarily built on proprietary 3D Gaussian Splatting technology and a cloud-edge rendering architecture.

Its cloud-based Motion Server converts generated speech into lightweight facial and motion data, while the AvatarKit SDK renders and animates the 3DGS character locally on the client device. Platform technologies include WebGL and WebGPU for web applications, Metal for iOS, and Vulkan for Android. Spatius can receive real-time audio through technologies such as WebSocket, WebRTC, LiveKit, and Agora, and can integrate with third-party ASR, LLM, and TTS providers.

SubmitraX's answer

Currently used by independent developers and freelancers across Europe and North America.

Spatius's answer:

TAL Education is one of Spatius’s leading customers. Spatius also works with established companies across education, recruiting, smart devices, and AI companion products.

Products powered by Spatius have reached millions of end users and supported tens of millions of digital human conversations, demonstrating the platform’s ability to operate in long-term, large-scale production environments.