Remindly
Things
TickTick
Gemma
TurboHog
Pinger
Motion
'If you want something done well, do it yourself"
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?
Website, pricing, platforms and company facts side by side.
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LBA
ListBox App
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ZIP
ZIP Code API
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|---|---|---|
| Website | listboxapp.com | zip-codes.com |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.
No description of ListBox App 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...
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Overall verdict
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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