
PowerSchool
Teachable
LanSchool
Treehouse
Fedena
Canvas by Instructure
RenWeb
syncing between education applications for K-12 schools
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
Which is more popular?
Based on our record, Clever seems to be more popular. It has been mentioned 2 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 | clever.com | zip-codes.com |
| Pricing | — | |
| Company | Startup from the United States | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Clever yet.
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...
What each product offers, as listed by its team.

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

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Why this product is good
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Overall verdict
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Clever and ZIP Code API. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

I tried it on the Firefox and Tor Browser on Whonix, same error pops up because it's using the Tor network? Is there any way I can bypass this error so I can visit my schools website, or another way to use the site anonymously? Site is... Source: almost 4 years ago
Mine also don't know what bookmarks are. So to get into Schoology, they type clever.com into the search bar - not the address bar - then log into it, then click the student page, then find Schoology, then click it. And the wifi in my... Source: almost 4 years ago
Tracking ZIP Code API since May 2026.
When comparing Clever and ZIP Code API, you can also consider the following products.

PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Get the best classroom management and monitoring software to inspire collaborative teaching with tools to minimize distractions and maintain an effective learning environment.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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