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Walls.io is an all-in-one audience engagement solution that allows brands to collect, curate, and display user-generated content in an easy-to-customize feed that can be used on displays, websites, intranets, or apps.

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Which is more popular?
Based on our record, Walls.io seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | walls.io | opalstack.com |
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| Company | Startup from Austria · 10 - 19 employees · 2014 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Use Walls.io at events, in shops, hotels, restaurants, and offices for your hashtag campaign, and even embed it on your website. 🔖 Tell your brand’s story with content aggregation 💎 Stay in control with automatic curation and moderation 🎨 Improve brand awareness with a custom feed 📺 Display your...
No description of Opalstack yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Walls.io Social Wall Solution for Events
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Walls.io and Opalstack.
Walls.io's answer
Walls.io is a flexible, enterprise-ready social wall platform that helps brands collect, moderate, and display social media content and direct user submissions in real time—across websites, events, apps, intranets, and digital signage.
What truly sets Walls.io apart is its combination of ease of use, deep moderation control, and privacy-first design. With features like Direct Posts (no social account required), GDPR-friendly moderation workflows, and broad integrations (event platforms, CMSs, digital signage tools), Walls.io works just as well for public campaigns as it does for internal communications and regulated industries.
Walls.io's answer
People choose Walls.io when they need reliable engagement without risk. Compared to competitors, Walls.io offers:
Direct Posts with QR codes, enabling safe participation without forcing users onto social networks
Advanced moderation and approval flows, ideal for large screens, internal comms, and conservative industries
True omnichannel flexibility: one wall can live on a website, at a live event, inside an app, and on office screens
Strong compliance posture, supporting GDPR-conscious brands and global organizations
In short, Walls.io isn’t just about displaying social media, it’s about owning and controlling the experience while still feeling live and authentic.
Walls.io's answer
Walls.io’s primary audience includes:
Marketing and event teams running live, hybrid, or virtual events
Internal communications and HR teams focused on employee engagement and employer branding
Enterprise and public-sector organizations that require moderation, privacy, and brand safety
Sports, education, and cultural institutions engaging large, diverse audiences on-site and online
They typically share one challenge: wanting high participation and visibility without losing control or compliance.
Walls.io's answer
Walls.io was founded in Austria with the goal of making social media content usable beyond native platforms, especially at events and on owned channels.
Early on, the team recognized a gap: brands wanted the energy of social media, but not the chaos, data risks, or platform dependency. Walls.io evolved into a robust platform that balances real-time engagement with moderation, flexibility, and ownership. It has since grown into a global solution used by enterprises, NGOs, universities, and major brands worldwide.
Walls.io's answer
At a high level, Walls.io is built on a modern SaaS architecture that includes:
Cloud-based infrastructure for scalability and global performance
API-driven integrations with major social networks, CMSs, event platforms, and signage tools
Real-time content ingestion and rendering technologies
Secure moderation, storage, and consent mechanisms aligned with data protection standards
Walls.io's answer
Walls.io is trusted by well-known global organizations across industries, including:
World Health Organization (WHO) – for large-scale international events
Cisco – for global employee engagement and event campaigns
Sandvik – connecting employees across 150+ countries
Leonardo (aerospace & defense) – for safe, approved social sharing
Oklahoma City Thunder (NBA) – powering fan engagement at live games
Universities, trade shows, and global enterprises such as NAMM, BearingPoint, and Champlain College
These customers rely on Walls.io for its stability, moderation, and ability to scale engagement safely.
Share your experience with using Walls.io and Opalstack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


To boost your marketing strategies, get the help of Walls.io in collecting real, community-generated content. Walls.io lets you gather posts, photos, or videos from 15+ different social media platforms. The moderation...
Walls.io is a social media marketing tool that allows users to collect and display user-generated content (UGC) on social walls. Its features make it suitable for different purposes, such as collecting social proof,...
We lately used it at a job fair and it was a huge draw. We also use it on an ongoing basis to show our social media presence quickly without having to pull up the individual platforms. All in all, I found it the...
We have no reviews of Opalstack yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Awesome thing! We're adding Mastodon support to https://walls.io/ next week - will allow you to track hashtags and create a Mastodon social wall content feed to embed as widget on your website or run on a screen/display! Source: over 3 years ago
Tracking Opalstack since Sep 2023.
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