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

Typeform
Survey Monkey
Jotform
Qualtrics
Wufoo
Paperform
Formstack
Simple web forms from Google.

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 | google.com |
| Company | Startup from the United States · 2026 | 2010 |
| 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 Google Forms yet.
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Overall verdict
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Helps my company solve many issues. We collect information from clients and employees. We conduct surveys and collect data. Very useful software. Helps form a common opinion, conduct analysis and analytics.
Google Forms is a user-friendly platform that allows you to create forms effortlessly. With its intuitive interface, you can select from various question types, customize the design, and add logic for a seamless...
Google Forms will be your choice if you’re looking for a straightforward tool to create surveys without all the fuss. It’s particularly good for anyone who needs to whip up quick polls or surveys with a clean,...
When comparing ZIP Code API and Google Forms, 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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Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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