Curator.io and similar tools are social feed aggregators: they pull posts from a connected account and display them in a feed. That is useful for showing activity, but it is not the same as building social proof that moves a buyer to act.
Castio takes a different approach. It is manual-first and curation-first. You add or paste exactly the proof you want — testimonials, reviews, screenshots, metrics, UGC — approve each card, and publish a wall that matches your brand and carries a call to action.
A real Castio wall
Maya Patel
Head of Ops · Northwind Labs
We replaced three tools with this in a week. Onboarding was the smoothest I've seen in years.
Internal dashboard
Activation up 34%
New-user activation jumped 34% in the first month after switching.
Dev Okonkwo
@devbuilds
Okay this just became my favorite launch of the quarter. Clean, fast, does exactly what it says.
Tara Lindqvist
Founder · Cadence
★★★★★ Worth every minute saved
Set up our first proof wall in under five minutes and embedded it on our pricing page same day.
Powered by Castio
Curated proof vs. raw feeds
A raw social feed shows everything, in chronological order, with no editorial control. A proof wall shows only what you have approved, in the order you choose, styled to fit the page it lives on.
For a landing page, pricing page or launch page, curation wins. You want your strongest proof first, not your latest post.
- ✓Approve, hide or archive every card before it goes live
- ✓Order proof by impact, not by date
- ✓13 proof types, not just social posts
No integrations to wait on
Because Castio is manual-first, you are never blocked waiting on an OAuth approval or a platform review. Paste a tweet, a review screenshot, a customer email quote or a metric and it is on your wall in seconds.
Designed to match your brand
Castio walls support light and dark themes, custom accent colors, card radius and spacing, plus a built-in CTA. The result looks like part of your site — not a bolted-on widget.
Frequently asked questions
Is Castio a direct Curator.io replacement?+
It solves a related problem differently. If your goal is conversion-focused, curated proof walls rather than a mirrored social feed, Castio is a strong fit.
Do I need to connect social accounts?+
No. Castio is manual-first, so you add or paste proof yourself without social OAuth.
Can I embed the wall anywhere?+
Yes. Every published wall has a one-line iframe embed that works on any website or builder.
Is there a free plan?+
Yes, you can build your first proof wall free and a lifetime deal is available.