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

neverinstall
vagon
Paperspace
DigitalOcean
Google Cloud Platform
Turbo Studio
Microsoft Azure
Run desktop apps, work with files, get things done - right from your browser.

Which is more popular?
Based on our record, rollApp 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 | rollapp.com |
| Pricing | — | |
| Company | Startup from the United States · 2026 | — |
| 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 rollApp 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
No analysis of rollApp yet.
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Run Linux programs in Chromebook! Simply Use rollApp!
How often each product is chosen within a category, 0–100% relative to the other.

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

Tracking ZIP Code API since May 2026.
Https://rollapp.com/ wonderful site, even has OpenTTD. Source: over 3 years ago
When comparing ZIP Code API and rollApp, 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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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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vagon is the simplest high-performance computer that anyone can use.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to ZIP Code API or rollApp:

GPU cloud computing made easy. Effortless infrastructure for Machine Learning and Data Science
Compare Paperspace to ZIP Code API or rollApp: