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Digital signage that starts with your existing slides.

Website, pricing, platforms and company facts side by side.
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| Website | opalstack.com | infoslides.app |
| Pricing | ||
| Company | — | Startup from Iceland · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Opalstack yet.
InfoSlides turns your existing PowerPoint presentations into professional digital signage streams — no proprietary editor to learn, no hardware lock-in. Upload a .pptx file and InfoSlides renders it into a continuous video stream you can push to any smart TV or display. Manage all your screens...
What each product offers, as listed by its team.


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As answered by people managing Opalstack and InfoSlides.
InfoSlides's answer:
Most digital signage platforms lock you into a proprietary content editor and charge a premium for hardware. InfoSlides takes a different approach: you upload your existing PowerPoint presentations and we handle the rest, rendering them into video streams for any smart TV or display. What really sets us apart is live content aggregation or dynamic slides: your slides can automatically pull in real-time data like weather, news feeds, and custom RSS sources, so your displays stay fresh without anyone touching them.
InfoSlides's answer:
The core reason is simplicity without sacrifice. Enterprise signage platforms are powerful but expensive and complex to operate. Budget alternatives look cheap but lack scheduling, live data, and multi-screen management. InfoSlides hits the middle: your team already knows PowerPoint, so there's no learning curve, and the platform handles rendering, streaming, scheduling, and live content automatically. You get professional results right away. For small-to-mid-sized organizations, that's a meaningful difference. The price is also modest for the quality and efficiency the system offers.
InfoSlides's answer:
InfoSlides is built for small and mid-sized businesses that need professional digital displays without enterprise budgets or complexity. Our typical customers include offices managing lobby and common area screens, retail locations running promotional displays, restaurants and cafes with menu boards, hotels with wayfinding and event screens, and co-working spaces with member-facing announcements. The common thread: organizations that already create content in PowerPoint and want an easy, affordable way to get it onto screens.
InfoSlides's answer:
The idea was originally born by the need to provide current, accurate details to tourists in Iceland. The weather can be harsh during the winter months and in these cases its important for travellers to get accurate details about the current weather, the weather forecast and road conditions. The idea developed from there and now more dynamic slides have been added for instance the northen light forecast and the avalanche forecast for Icelandic businesses.
InfoSlides's answer:
InfoSlides is built on ASP.NET Core and Blazor WebAssembly, with PostgreSQL for data storage and Redis for caching and real-time coordination. The content aggregation layer is a standalone .NET service that pulls from external data sources, RSS feeds, weather APIs, and others and injects live content into slides at render time.
InfoSlides's answer:
InfoSlides launched in 2026 and is actively onboarding its first customers. At the time of writing we're not in a position to name reference customers yet, but we'd love to hear from early adopters who want to shape the product.
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