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

Threads
Sparklip
Threads App
launching.today
ClubsAll
Senses Social Network
Ownetic
Send stunning flowers from NY's and London's best florists

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 | floom.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 Floom 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
No analysis of Floom yet.
Walkthroughs and reviews on video.
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Floom Crowdcube Video
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How often each product is chosen within a category, 0–100% relative to the other.

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You won’t find any carnations or baby’s breath here: instead of relying on generic filler flowers, Floom sources high-quality arrangements from local New York florists. Options vary by the day and zip code, but on a...
Floom starts at $49 + $15 delivery with direct service from local florists, so it doesn't feel like you're taking away from small businesses. The bouquets you see on the site are what you get (a rarity on the World...
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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Say more with Threads — Instagram's new text app.
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