Slido alternative · Updated 13 Oct 2026
PostoBox vs Slido
Slido is the default meeting tool, but its free and entry plans run Q&A without a moderation queue or your branding. PostoBox includes both on every plan and gives each organisation its own branded event hub.
PostoBox
SlidoCore event features in the base offer
Which one should you choose?
Choose PostoBox if you
- run live events, town halls, talks or conferences
- want questions moderated before they reach the big screen
- need guest moderators without sharing logins
- want attendees to land on your brand, not a shared join site
- collect feedback with questionnaires during the session
Choose Slido if you
Companies already on Webex or Microsoft Teams that run frequent internal meetings and need deep integrations and certifications.
See where Slido is stronger below.
Feature by feature
Based on public information reviewed 13 Oct 2026.
| Feature | PostoBox | Slido |
|---|---|---|
| Live Q&A with upvoting | IncludedIncluded | IncludedIncluded |
| Q&A moderation queue | IncludedIncluded | Paid plansPaid plans |
| Anonymous questions | IncludedIncluded | IncludedIncluded |
| Live polls | IncludedIncluded | IncludedIncluded |
| Surveys and questionnaires | IncludedIncluded | Paid plansPaid plans |
| Full-screen presenter display | IncludedIncluded | IncludedIncluded |
| Custom branding | IncludedIncluded | Paid plansPaid plans |
| Attendees join in the browser, no app | IncludedIncluded | IncludedIncluded |
| Public API | IncludedIncluded | PartialPartial |
| Quizzes and leaderboards | Not offeredNot offered | IncludedIncluded |
| Word cloud | Not offeredNot offered | IncludedIncluded |
| PowerPoint or Google Slides add-in | Not offeredNot offered | IncludedIncluded |
| Zoom or Teams integration | Not offeredNot offered | IncludedIncluded |
| AI features | Not offeredNot offered | IncludedIncluded |
| Single sign-on (SSO) | Not offeredNot offered | Paid plansPaid plans |
“Paid plans” means the feature exists but not on the free plan. “Partial” means limited, in beta, or only in some versions.
Why event teams pick PostoBox over Slido
Moderation without an upgrade
On Slido, the moderation queue and logo branding start at the Professional tier. PostoBox includes the moderation queue, external moderators and your logo and colour on every plan, free included.
A branded hub instead of slido.com
Slido attendees join through slido.com with an event code. PostoBox attendees land on your own subdomain, where every event you run is listed under your brand.
An open API
Slido's API is reserved for large Enterprise accounts. PostoBox has a public REST API with scoped keys on every plan.
Questionnaires with rounds
PostoBox questionnaires can be presenter-paced with timers, repeated in rounds with per-round results, and hidden from the projector question by question.
How an event runs on PostoBox
From set-up to the big screen in four steps.
Step 1
Create your event
Name it, switch on moderation and anonymous questions, add polls and questionnaires.
Step 2
Share the QR code
Attendees scan it and join on your branded subdomain. No app, no sign-up.
Step 3
Moderate live
Approve or reject questions from any phone, or hand a private link to a guest moderator.
Step 4
Put it on the big screen
Show the chosen question, poll results and questionnaires full screen as they update.
Switching from Slido?
Set up your first event in minutes. Moderation and branding included.
Where Slido is stronger
- Integrations with PowerPoint, Google Slides, Webex, Teams and Zoom.
- Quizzes, word clouds, rankings and AI features on every plan.
- A long list of security certifications, including SOC 2 and several ISO standards.
About Slido
- What it is
- Slido is Cisco's Q&A and polling tool for meetings, all-hands and events, built into Webex and available for PowerPoint, Teams and Zoom.
- Company
- Founded in Bratislava, Slovakia; owned by Cisco (Webex) since 2021
- How attendees join
- Attendees enter an event code at slido.com, open a link or scan a QR code. Slido retired its native mobile apps in March 2026, so joining is browser-only.
- Worth knowing
- Slido support moved to Cisco's technical assistance centre in May 2026.
PostoBox vs Slido: FAQ
Is PostoBox a good alternative to Slido?
Slido is the default meeting tool, but its free and entry plans run Q&A without a moderation queue or your branding. PostoBox includes both on every plan and gives each organisation its own branded event hub.
Does Slido include Q&A moderation for free?
Not on its free plan: in Slido, Q&A moderation is a paid feature. PostoBox includes the moderation queue and external moderators on every plan, including the free plan.
How do attendees join Slido and PostoBox?
Attendees enter an event code at slido.com, open a link or scan a QR code. Slido retired its native mobile apps in March 2026, so joining is browser-only. With PostoBox, attendees scan the event QR code or open its link on your organisation's own subdomain, in any phone browser, with no app to install.
Can I try PostoBox for free?
Yes. The free plan includes live Q&A with moderation, polls, questionnaires, the big-screen display, external moderators and your branding. No credit card is needed.
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Sources
Slido is a trademark of its owner. This comparison is based on Slido's public website and help pages as of 13 Oct 2026. Features change; if anything here is out of date, email support@postobox.app.
Ready to move on from Slido?
Moderated Q&A, live polls and questionnaires under your own brand. Attendees join from any phone.
Free plan available. No credit card needed.