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

ClearVPN
AdGuard VPN
TailScale
CyberGhost
Netmaker
Private Internet Access
VPN Unlimited
Secure, private & fast VPN with one-tap protection and a strict no-logs policy.
Which is more popular?
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 | cometvpn.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...
CometVPN protects your privacy and keeps your internet traffic secure with strong AES-256 encryption. Whether you're browsing at home, streaming on the go, or connecting from public WiFi, CometVPN delivers fast, private, and unlimited VPN access with a single tap. Your Privacy, Our Priority...
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 CometVPN yet.
How often each product is chosen within a category, 0–100% relative to the other.

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Expand and secure online activities hassle-free
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Makes the Internet open and your data safe. Topnotch VPN from the creators of famous ad blocker.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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Private networks made easy Connect all your devices using WireGuard, without the hassle. Tailscale makes it as easy as installing an app and signing in.
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