# Fillout vs Spline

Fillout records 3,923,917 monthly visits with -9.7% month-over-month growth and Freemium pricing. Spline records 588,316 monthly visits with -6.1% growth and Freemium pricing.

| Metric | [Fillout](https://openaitools.app/tool/fillout-com) | [Spline](https://openaitools.app/tool/spline) |
| :--- | :--- | :--- |
| Website URL | https://www.fillout.com | http://spline.design |
| Categories | AI Forms, AI Quiz Generator, AI Signature Generator, AI PDF | AI 3D Model Generator, AI Style Transfer, AI Design Generator |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 3,923,917 | 588,316 |
| MoM Growth Rate | -9.7% | -6.1% |
| Primary Market | United States | India |
| Direct Visits | 2,306,833 | 212,692 |
| Review Score | 4.4 | 4.7 |
| Saved Count | 12 | 22 |
| Supported Platforms | Website | Website |

## Fillout

Fillout is a no-code platform for building forms, surveys, quizzes, and payment or scheduling pages. You can start from a description and let the built-in Zite AI assemble a ready-to-publish form in your brand, or drag and drop fields manually. Every submission is stored in a structured database you can filter, analyze, and connect to other tools.

Beyond basic data collection, Fillout adds intelligent routing, login-based forms that let respondents edit their own answers, digital signatures, and native integrations with 50+ apps. Branding is fully controllable, including custom domains, white-labeling, and embeds as popups, sliders, or full-screen pages.

A large number of organizations use Fillout for secure data intake, and the service advertises SOC II Type 2 compliance plus AES-256 encryption. A free tier covers casual use, while paid plans unlock advanced logic, higher limits, and team features.

**Pricing & Plans:** Freemium. A free plan covers basic forms and submissions, with paid tiers for advanced logic, higher limits, file uploads, payments, and team collaboration.

- **AI form builder (Zite):** Describe the form you need in plain language and Zite generates a branded form with logic, file uploads, and payments.
- **Logic and workflows:** Add conditional logic, intelligent routing, and multi-step workflows to automate what happens after each response.
- **Editable and secure submissions:** Respondents can log in to update their answers, and forms can be restricted to internal users only.
- **Branding and embeds:** Use custom themes, fonts, logos, custom CSS, your own domain, and embed forms as popups, sliders, or full-screen pages.
- **50+ integrations and analytics:** Send responses to spreadsheets, CRMs, and other tools, then review and collaborate on results with flexible views.

**Strengths:** AI-assisted building makes first drafts fast; Deep logic, workflows, and 50+ integrations; Strong branding controls including white-label and custom domains; SOC II Type 2 compliance and AES-256 encryption

**Limitations:** Advanced features require paid plans; Feature depth can be overwhelming for simple one-off forms; Popular templates see heavy competition for the same look

[Profile (Markdown)](https://openaitools.app/tool/fillout-com.md)

## Spline

Spline brings 3D design into the browser so designers, developers and marketers can build interactive 3D without a heavyweight desktop pipeline. The editor covers primitives, booleans and sculpting, plus 3D generation, layered materials, lighting and post-processing. Animation and interaction are handled through states, keyframes, events and physics, and the whole file runs with real-time performance.

A standout feature is agent collaboration: you can connect assistants such as Claude, ChatGPT, Cursor or Codex through Spline MCP so an agent can read and write to the live scene, then hand it back to your team for refinement in the very same file. Because everything the agent produces is a regular Spline object, teammates can select, restyle, animate or undo it by hand at any point.

Publishing targets the modern web and mobile stacks. You can share a link, embed a viewer or export code for web (WebGPU/WebGL), add a native SwiftUI or Metal view for Apple apps, or build for Android with Vulkan and Jetpack Compose. Spline is used for interactive product design, brand and marketing pages, immersive experiences, gamified sites and education.

**Pricing & Plans:** Spline offers a free tier to start building in 3D, with paid plans for individuals and teams and a dedicated Enterprise offering. Exact seat and feature limits per tier are listed on the Spline pricing page.

- **In-browser 3D editor:** Model with primitives, booleans and sculpting, and use 3D generation to create objects from prompts.
- **Materials, lighting and post-processing:** Apply layered materials, lights and post-processing effects to give scenes a polished, production-ready look.
- **Animation and interaction:** Build interactivity using states, keyframes, events and physics so scenes respond to scroll, hover and other triggers.
- **Agent collaboration over MCP:** Connect AI coding agents to read, write and frame the live scene, then refine the same file by hand with your team.
- **Ship to web, iOS and Android:** Publish a link, embed a viewer, export code for the web, or create native Apple and Android views and builds.

**Strengths:** Runs entirely in the browser, so there is no heavy install or setup barrier; Real-time collaboration and agent workflows keep designers and developers in one shared file; One scene publishes to web, iOS and Android with platform-native renderers; Broad feature set spanning modeling, materials, animation, physics and interaction

**Limitations:** Advanced 3D work may still require a learning curve for newcomers; Performance and export options depend on the device and platform you target; Team and enterprise capabilities sit behind paid tiers

[Profile (Markdown)](https://openaitools.app/tool/spline.md)

## Frequently Asked Questions

### How do Fillout and Spline compare in monthly traffic?

Fillout has 3,923,917 monthly visits, while Spline has 588,316. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Fillout has a month-over-month growth rate of -9.7%; Spline has -6.1%.

### How does pricing compare?

Fillout: Freemium. Freemium. A free plan covers basic forms and submissions, with paid tiers for advanced logic, higher limits, file uploads, payments, and team collaboration. Spline: Freemium. Spline offers a free tier to start building in 3D, with paid plans for individuals and teams and a dedicated Enterprise offering. Exact seat and feature limits per tier are listed on the Spline pricing page.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Tripo AI](https://openaitools.app/tool/tripo-ai) | 25,209,679 | +73.2% | Freemium | Generates 3D assets rapidly from text or images, but focuses on object creation rather than interactive web scene composition. | [.md](https://openaitools.app/tool/tripo-ai.md) |
| 2 | [Hyper3D Rodin](https://openaitools.app/tool/rodin) | 10,751,371 | +11.2% | Freemium, Free Trial, Paid, Contact for Pricing | Produces highly detailed 3D models from 2D references, but provides fewer interactive scene building and animation tools than Spline. | [.md](https://openaitools.app/tool/rodin.md) |
| 3 | [Framer](https://openaitools.app/tool/framer-ai) | 4,974,738 | -5.7% | Freemium | The pro website builder with a design agent on a fully editable canvas | [.md](https://openaitools.app/tool/framer-ai.md) |
| 4 | [ComfyUI](https://openaitools.app/tool/comfyui) | 4,379,348 | +13.4% | Contact for Pricing, Free | Node-based visual AI studio for images, video, 3D and audio | [.md](https://openaitools.app/tool/comfyui.md) |
| 5 | [forms.app](https://openaitools.app/tool/forms-app) | 987,157 | -11.2% | Freemium, Paid | Broader template library and multi-channel sharing features, but less flexible multi-page layout customization than Fillout. | [.md](https://openaitools.app/tool/forms-app.md) |
| 6 | [Neural4D](https://openaitools.app/tool/neural4d) | 444,081 | +27.1% | Freemium | Converts multimedia into textured 3D models with animation support, but offers less control over custom web interactivity. | [.md](https://openaitools.app/tool/neural4d.md) |
| 7 | [Sloyd](https://openaitools.app/tool/sloyd) | 427,573 | -5.8% | Freemium | Offers parametric 3D model generation for rapid prototyping, but lacks Spline's freeform vector modeling and interactive web animation canvas. | [.md](https://openaitools.app/tool/sloyd.md) |
| 8 | [BlockSurvey](https://openaitools.app/tool/block-survey) | 302,480 | -14.9% | Freemium, Paid | Superior privacy-first encryption and secure data handling, but more restrictive workflow automation and styling capabilities. | [.md](https://openaitools.app/tool/block-survey.md) |
| 9 | [Makeform](https://openaitools.app/tool/makeform) | 160,692 | -10.8% | Freemium | Faster AI form generation with built-in logic, but fewer advanced database integration and multi-page routing features. | [.md](https://openaitools.app/tool/makeform.md) |
| 10 | [Opinion Stage AI](https://openaitools.app/tool/opinion-stage-ai) | 120,996 | +2.5% | Contact for Pricing | AI quiz, poll and survey builder that turns traffic into leads | [.md](https://openaitools.app/tool/opinion-stage-ai.md) |

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Source: https://openaitools.app/compare/fillout-com-vs-spline

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