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

Yoink
Alfred
Rectangle
Maccy
Paste App
FolderHub.app
Dropzone
Mac app for easier drag & drop
Which is more popular?
Based on our record, Dropover seems to be more popular. It has been mentioned 15 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 | dropoverapp.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 Dropover 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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Recommended for
Overall verdict
Why this product is good
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Zombie Box Standby/Backup Enclosure Review - Kohler Dropover Installation
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ZIP Code API and Dropover. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Dropover is extremely useful when you need to organize files by dragging and dropping them. When you need to move files to a specific location, use Dropover. While dragging files, a "shelf" appears next to the folder. You can drag all... - Source: dev.to / over 2 years ago
Dropover - Price: Free (with optional premium subscription available) Drag and drop utility for macOS that allows you to easily move files between folders and apps. Source: over 3 years ago
DropOver, not discovered in the 1st half of 2023 but it's one of my favourites. Source: over 3 years ago
When comparing ZIP Code API and Dropover, 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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Yoink is a website that makes it easier to drag and drop images and text from one screen to another. It's a straightforward site with help along the way if you aren't sure about dragging and how to place your content.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to ZIP Code API or Dropover:

Window management app based on Spectacle, written in Swift.
Compare Rectangle to ZIP Code API or Dropover: