Slido is great. But do you need all of it?

Slido fits large multi-day conferences with polls, surveys, and analytics. If you run a seminar, webinar, or internal event, Postwalls gives you the same moderated wall outcome with a one-time payment, no login, and no subscription.

Try for free - no login

Postwalls vs Slido

Feature	Postwalls	Slido
Pricing model	One-time payment per event	Annual subscription (free tier has limits)
Price	From 39.90 € / event	From 225.90 € / year
Annual cost	No ongoing annual cost	From 225.90 € / year
Participant registration	Not required	Not required
Organizer registration	Not required	Required
Full moderation mode	Included in every plan	Professional+ (903.60 € / year)
Automatic content filtering	Yes	Yes
Disruption control	IP blocking	Not available
Participant limits	No hard cap	100-5,000 (plan based)
Data export	Included	Paid plans only
EU servers / GDPR	EU data handling	Cisco stack, US transfer may apply
Custom logo and colors	Included	Professional+ (EUR60+/month)
OBS / vMix support	Transparent screen + JSON feed	Not available
Video embed	Allowed (plan based)	Not documented
Polls & voting	Not supported	Yes

comparison updated april 2026

Using OBS or vMix? See the broadcast setup →

When to choose Postwalls or Slido

Choose Postwalls when:

You run a single event and do not want subscriptions
A moderated message wall is exactly what you need
OBS or vMix integration matters
Strict GDPR requirements are non-negotiable
Fast setup is critical

Choose Slido when:

You run events continuously all year
You need polls, surveys, and broader participation formats
A large conference budget is available
Advanced analytics are a key requirement
A production team manages the full stack

Postwalls in one sentence

One message wall, one payment, one event.

Postwalls is a browser-based moderated message wall for live and hybrid events. Participants send messages without an app or login, while moderators decide what gets shown on screen. Ready for production: works directly with OBS and vMix via JSON feed.

Most useful differences in practice

IP blocking is available in Postwalls and missing in Slido.

Full moderation is available without upgrading to a higher monthly tier.

No organizer account is required to start.

EU-focused data handling is easier to justify for public sector procurement.

No hard participant ceiling for one-off events.

Need a secure message wall for one event?

Start free for 30 minutes. No account. No credit card.

Try Postwalls free View pricing

New to Postwalls? See how it works →

FAQ

Does Postwalls work like Slido?

For message walls and moderation, yes. Postwalls does not include Slido-style polling, surveys, or broad analytics by design.

Why one-time payment instead of subscription?

Most events are one-offs. You only pay when you actually use the tool, instead of paying every month between events.

Is Postwalls suitable for public sector use?

Yes. Data is handled in the EU and the service is built with GDPR requirements in mind.

Can I try it before paying?

Yes. You get a free 30-minute trial with no login and no credit card.