Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
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

Mentimeter
Kahoot!
Sli.do
Poll Everywhere
Wooclap
Quizizz
Glisser
Add live polls, quizzes, word clouds and Q&As to make presentations interactive. See dynamic audience interactions happen in real-time.
Which is more popular?
Based on our record, AhaSlides 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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ZIP
ZIP Code API
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|---|---|---|
| Website | zip-codes.com | ahaslides.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from the United States · 2026 | 2019 |
| Listed in |
In their own words, as submitted to SaaSHub.

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
Everything you need to engage your audience is here. And it's super easy to use. Involve your participants with live polls. Crowdsource the best questions and ideas from your audience. Excite your class with some quiz competitions. There are so many great things you can do with AhaSlides:...
What each product offers, as listed by its team.

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

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In a middle of a presentation of a trainig with a client, the app crashed.
If you are looking for a Kahoot or Mentimeter alternative, AhaSlides is the top choice. They have the Edu plan which offers better pricing while keeping all the vital parts like PPT import, quizzes, polls and Q&A...
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Kahoot or Ahaslides are perfect but very expensive for a personal use. Source: over 3 years ago
When comparing ZIP Code API and AhaSlides, you can also consider the following products.

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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a web-based polling tool for workshops, conferences & events
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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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.
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