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
Quizlet
Poll Everywhere
Quizizz
Sli.do
AhaSlides
Blackboard Learn
Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.

Which is more popular?
Based on our record, Kahoot! seems to be more popular. It has been mentioned 25 times 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 | kahoot.com |
| Pricing | — | |
| Company | Startup from the United States · 2026 | Startup from Norway · 100 - 249 employees |
| 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...
No description of Kahoot! yet.
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
Overall verdict
Why this product is good
Recommended for
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AP Human Geography Unit 5 Kahoot Review! (The Last Kahoot!)
How often each product is chosen within a category, 0–100% relative to the other.

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This page is for the person who picks the tool for Q&A, polls and a quiz at an event or a talk. It sets klapp next to Mentimeter, Slido, Kahoot! 360 and Pigeonhole Live, one row per feature. Every cell about them...
Kahoot! makes learning fun and mentally stimulating. Its massive collection of user-generated quizzes and activities lets teachers create a lively, competitive classroom that inspires, engages, and educates students....
Kahoot! is a game-based online quiz maker that uses colorful visuals and gamification elements to boost engagement. It offers quizzes with multiple-choice questions, as well as “type answer” questions wherein...
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Other than educational tools like Kahoot, Quizizz, or Gimkit, there's really not much out there that's free unfortunately. Source: over 3 years ago
Otherwise throw in a baamboozle, a kahoot or a word wall. Source: over 3 years ago
A: These resources will be your absolute savior! islcollective.com, Teach-This.com, ESLBrains.com, Linguahouse.com, kahoot.com, plus many more. But remember to keep it appropriate for their level, or else you're in for a LONG lesson! Source: over 3 years ago
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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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.
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