
Mentimeter
Kahoot!
Poll Everywhere
AhaSlides
Glisser
Wooclap
Meeting Pulse
Slido is the ultimate Q&A and polling platform for live and virtual meetings and events. It offers interactive Q&A, live polls and insights about your audience.

ZIP Code API
ZipCheckup
PostalCodes.info
Smarty
Geocode.xyz
Geoco.io
getAddress.io
Free Zip Code API - Free Postal Code Validation | Zipcodestack

Which is more popular?
Based on our record, Zipcodestack should be more popular than Sli.do. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | sli.do | zipcodestack.com |
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| Company | 2012 | — |
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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
Sli.do is recommended for event organizers, educators, corporate trainers, webinar hosts, and conference managers. It is ideal for those looking to increase engagement in hybrid or virtual settings and for anyone seeking to make meetings and events more interactive and participant-focused.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
What is Slido
More videos
No Zipcodestack videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Sli.do and Zipcodestack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


The plans are not the same. Slido Professional has moderation, branding and multiple rooms, among other things, and Mentimeter’s conference pack has Excel export and editing together with your team. klapp has no...
Yet another highly rated tool, Slido helps you build interactive polls, quizzes or surveys. The tool is scalable and can cater their services to both individuals, and businesses. The participants don’t need to...
Slido shares many features with the other tools on this list. But it also lets your audience prioritize questions for Q&A sessions by upvoting/downvoting them – a concept that Reddit users will be familiar with. Also,...
We have no reviews of Zipcodestack yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Does anyone know of a open source self-hosted alternative to sli.do? Source: about 5 years ago
Using the zipcodestack API in your Node.js application is straightforward. You’ll first need to sign up for a free API key (it only takes a minute). Once you have your API key, you can call the REST endpoints using any HTTP client. Below... - Source: dev.to / about 1 year ago
Zipcodestack - Free Zip Code API and Postal Code Validation. Ten thousand free requests/month. - Source: dev.to / over 2 years ago
I have seen this request pop up quite a few times. I did a quick search for free APIs of zipcode lookups. This one, named "zipcodestack" (I'm not in any way tied to, endorsing, or promoting them) seemed like a pretty good resource with... Source: over 3 years ago
When comparing Sli.do and Zipcodestack, you can also consider the following products.

a web-based polling tool for workshops, conferences & events
Compare Mentimeter to Sli.do or Zipcodestack:
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
Compare ZIP Code API to Sli.do or Zipcodestack:

Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
Compare Kahoot! to Sli.do or Zipcodestack:

Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.
Compare ZipCheckup to Sli.do or Zipcodestack:

Audience response system that uses mobile phones, twitter, and the web. Responses are displayed in real-time on gorgeous charts in PowerPoint, Keynote, or web browser.
Compare Poll Everywhere to Sli.do or Zipcodestack:
Postal code lookup API and downloadable country datasets for address validation, checkout, logistics and geocoding workflows.
Compare PostalCodes.info to Sli.do or Zipcodestack: