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

Lumosity
Reaction-Time-Test.org
Brain Workshop
Elevate
BrainHQ
reaction-time-test.io
Brainturk
A web game to benchmark your brains.

Which is more popular?
Based on our record, Human Benchmark seems to be more popular. It has been mentioned 81 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 | humanbenchmark.com |
| 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 Human Benchmark 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.

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No analysis of Human Benchmark yet.
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Human Benchmark TEST Is INSANE!
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Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Earlier today I was wondering if anyone had estimated the percentiles for scores in the Verbal Memory test on humanbenchmark.com. They display a graph on the stats page, but not the corresponding percentiles for each score displayed. Source: about 3 years ago
Test it out for yourself - humanbenchmark.com. Source: over 3 years ago
Just test your reaction time on humanbenchmark.com You'll be around average. Source: over 3 years ago
When comparing ZIP Code API and Human Benchmark, 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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Discover what your mind can do. Improve memory, increase focus, and find calm - with the #1 brain training app. Get started now.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Reaction Time Test - Measure Your Response Speed Online
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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Brain Workshop is a open-source version of the dual n-back brain training exercise.
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