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Browser-native WebGL mockup engine. Animate device frames with keyframes, render 9 dynamic ambient backgrounds in real time, and export 4K MP4 — no uploads, no watermarks, no account.
Website, pricing, platforms and company facts side by side.
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| Website | open-gpt.app | mockupreel.studio |
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| Company | — | Startup from Nigeria · 2026 |
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In their own words, as submitted to SaaSHub.


No description of https://open-gpt.app/ yet.
MockupReel MockupReel is a free browser-based app mockup generator that transforms mobile screen recordings into polished, presentation-ready device mockups in minutes. Whether you're launching an app, publishing a case study, sharing on social media, updating your portfolio, or creating...
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As answered by people managing https://open-gpt.app/ and Mockupreel.studio.
Mockupreel.studio's answer:
MockupReel combines speed, privacy, and simplicity in a single browser-based experience. Unlike many mockup tools, it processes videos locally in the browser, so recordings never leave your device. It requires no account, adds no watermark, and is completely free.
It also goes beyond static device frames with features like motion presets, a timeline editor, dynamic ambient backgrounds, custom canvas backgrounds, and high-quality video exports, making it easy to create presentation-ready app mockups in minutes.
Mockupreel.studio's answer:
MockupReel is built for anyone who needs to present mobile apps professionally, including:
It's especially useful for creating product launches, App Store previews, case studies, portfolio projects, social media content, presentations, and promotional videos.
Mockupreel.studio's answer:
Choose MockupReel if you want the fastest way to turn a screen recording into a polished app presentation without a complicated workflow.
Key advantages include:
MockupReel is designed for creators who want professional results with minimal friction.
Mockupreel.studio's answer:
MockupReel began as a solution to a problem I repeatedly faced as a Product Designer. Creating polished app mockups often meant switching between multiple tools just to add a device frame, customize a background, and export a final video.
I wanted a simpler workflow that anyone could use instantly. That led to MockupReel: a browser-based tool that lets users transform screen recordings into professional app mockups without uploading files or creating an account.
Since its public beta, MockupReel has been used in over 15 countries and continues to evolve through feedback from its growing community.
Mockupreel.studio's answer:
Mockupreel.studio's answer:
MockupReel is currently used by individual designers, developers, founders, and product teams in more than 15 countries. We don't publicly disclose customer names at this time.
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