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FORM.com is an enterprise mobile forms software and solutions perfect for optimizing online and offline inspection, audit, compliance operations and more.
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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ZIP
ZIP Code API
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| Website | form.com | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of FORM.com 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.

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Overall verdict
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Form.com Platform Overview
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Share your experience with using FORM.com and ZIP Code API. For example, how are they different and which one is better?
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We spent a long time looking for a product that could capture data online and offline, add logic and validation to the forms, empower our team to build their own questionnaires and also allow us to host the system in...
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When comparing FORM.com and ZIP Code API, you can also consider the following products.

ReachOut Suite is a field service management suite to streamline field processes with customizable mobile-based forms and workflow.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Smart Service's QuickBooks integration makes it the ultimate scheduling and dispatch software for HVAC, plumbing, pest control, and other service industries.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Cloud Field Service Management software is a best-in-class solution that can help your business to grow. Invoicing, Estimating, Scheduling, Billing & Routes.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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