Polotno SDK embeds a customizable editor in your product; RelayThat focuses on generating branded variants from preset layouts and rules in a hosted platform. Choose the editor when you want in‑product creation with schema‑driven automation and flexible rendering. Choose the hosted generator when you want quick brand‑consistent assets from predefined templates.
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Core philosophy
Polotno SDK centers on control inside your app. You define the UI, permissions, and data flow, and keep one JSON schema for both editing and automation. When it is time to export, render in the browser, on your own servers, or via the Polotno Cloud Render API. Plans and setup are on Request API key.
RelayThat centers on consistency through brand rules and layouts in a hosted account. Users select formats, apply brand presets, and export variants; there is no embeddable editor surface for your product.
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Architecture and integration
Polotno SDK runs as a JavaScript editor in the browser and plugs directly into your product. You can connect your auth, asset libraries, and business logic. Rendering paths are interchangeable — in‑browser for instant feedback, self‑hosted for privacy and throughput, or cloud for scale — all using the same schema and API surface. For element control, see the video element schema; the image element and the text element follow the same model.
RelayThat operates as a hosted web app with export endpoints and integrations. Templates and generation run on the vendor side; your product consumes finished assets by link or download.
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Automation and templating
Polotno SDK represents projects as JSON. You can generate or modify layouts from code, bind variables to data, or integrate AI systems, then render locally, self‑hosted, or in the cloud. Interactive editing and batch pipelines use the same project model. Reusable templates help standardize variations.
RelayThat automates by applying brand presets and content to predefined layouts, outputting many sizes quickly.
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Rendering and export
Polotno SDK supports three execution paths with one schema: in‑browser, self‑hosted, and the Cloud Render API. Export formats include PNG, JPEG, PDF, PPTX, GIF, and MP4; see import and export for details.
RelayThat renders on a managed backend and delivers finished images; video and document formats are limited compared to a full editor toolchain.
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Feature scope
Polotno SDK
Embeddable editor for images, templates, documents, and video
Schema‑level control for layout, styling, animation, and timing
Export to images, PDF, PPTX, GIF, and MP4 using client‑side, self‑hosted, or cloud execution
RelayThat
Hosted brand‑preset generator with multi‑size layouts
API and integrations focused on batch image variants
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Use cases
Polotno SDK
SaaS and MarTech: build a first‑party editor and automate campaigns from your own data
eCommerce: generate product visuals and short videos from catalog feeds
Social and content tools: let users create posts and reels in‑app with automated exports
Education and training: produce course visuals with self‑hosted rendering for privacy
Real estate and print/DAM: create listing sheets, flyers, and documents with on‑prem or cloud export
RelayThat
Marketing automation: batch branded image sets across sizes from a hosted template library
Content operations: produce quick social graphics and display banners with brand rules enforced
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Feature comparison
Capability | Polotno SDK | RelayThat |
|---|---|---|
Primary model | Embeddable editor + JSON schema | Hosted brand‑preset generator |
Editor inside your app | Yes (customizable UI) | No (hosted app) |
Automation | Programmatic via schema and code | Preset layouts and rules |
Rendering modes | Browser, self‑hosted, cloud | Hosted service only |
Media types | Images, video, documents | Images |
Templates | Schema‑based in your product | Hosted layouts with brand rules |
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Pricing and licensing
Polotno SDK
Team $199/mo for organizations under 10 employees, one domain, 10,000 editor loads. Business $399/mo for organizations under 50 employees, unlimited domains and loads. Enterprise $599+/mo with custom terms and optional source access. Cloud rendering: $0.004 per image, $0.03 per video minute. See Request API key.
RelayThat
Subscription pricing for hosted generation; plan limits govern sizes and throughput.
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Conclusion
Polotno SDK gives you an embeddable editor and a single schema for editing and automation across browser, self‑hosted, and cloud rendering. RelayThat provides a hosted, brand‑preset generator suited for fast, consistent image variants.