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

Canny.io
UserVoice
Aha!
ProdPad
Frill
Upvoty
Nolt.io
Beautiful and powerful product management.

Which is more popular?
Based on our record, productboard seems to be more popular. It has been mentioned 4 times 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 | productboard.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 productboard yet.
What each product offers, as listed by its team.

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An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
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Share your experience with using ZIP Code API and productboard. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

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Productboard's ability to create "Roadmap Folders" and manage dozens of distinct product lines in one view is unmatched. If you are a CPO overseeing ten different product teams, Productboard gives you the "Grand View."
ProductBoard is also a popular feedback management tool which can be considered as an alternative to Featurebase. We can view several e-mails from or feedbacks in one unified view using ProductBoard (opens in new tab)...
Productboard is a SaaS product roadmap software that helps you organize your roadmap, prioritize features by customer value and business impact, create visual roadmaps with user stories and epics, generate reports...
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Admittedly, this is an issue with organization and can be solved with thorough cleanups, but I suspect that may disrupt the usual flow of non-PM people more. I am thinking of using a separate tool like craft.io or productboard.com to... Source: over 4 years ago
Recently my friend at Productboard noticed an interesting bug in one of our services. For some reason our code responsible for calculating how many days our customers' features spend in certain states (Idea, Discovery, Delivery, etc) in... - Source: dev.to / over 4 years ago
ProductboardProductboard helps us capture user feedback from email, Slack, Zendesk, our public-facing product portal etc. And see what users need the most. We also use it for prioritizing product objectives, release planning, roadmapping…. Source: about 5 years ago
When comparing ZIP Code API and productboard, 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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Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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Aha! is the new way to create visual product roadmaps. Web-based product management tools and roadmapping software for agile product managers.
Compare Aha! to ZIP Code API or productboard: