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

Troops
Zapier
Polly
Obie.ai
Twitter Polls
Trello Bot
Polly.ai
The easiest way to create polls in Slack

Which is more popular?
Based on our record, Simple Poll seems to be more popular. It has been mentioned 2 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 | simplepoll.rocks |
| 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 Simple Poll yet.
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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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$1K A Day Using Simple Poll Pages? - Fast Track Review
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ZIP Code API and Simple Poll. 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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Simple Poll comes with a standup template with one standup question. You can also find response types to customize your questions the way you want to. It also provides you with the ability to edit the question right...
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Our members include the founders of VEED, Simple Poll, Data Fetcher and 60+ more, and you can check our testimonials out here. Source: over 5 years ago
Simple Poll - The free tier is enough for us, for as you would guess, simple polling. Source: over 5 years ago
When comparing ZIP Code API and Simple Poll, you can also consider the following products.

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Compare Smarty to ZIP Code API or Simple Poll:

Vauxhall Troops offers loyalty discounts if the car is purchased from us and we include this in your reminder. All used cars come with 12 Months MOT as Standard, Vauxhall Troops quote a competitive fixed price for any work required.
Compare Troops to ZIP Code API or Simple Poll:

Free Zip Code API - Free Postal Code Validation | Zipcodestack
Compare Zipcodestack to ZIP Code API or Simple Poll:

Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Compare Zapier to ZIP Code API or Simple Poll:

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to ZIP Code API or Simple Poll:

Polly. Polly is an advanced loop optimization infrastructure for LLVM, which uses an abstract loop model based on integer sets to analyze and transform the program code. Website: polly. llvm. org .
Compare Polly to ZIP Code API or Simple Poll: