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

GrandPerspective
CleanMyMac X
Disk Inventory X
WinDirStat
AppCleaner
TreeSize
WizTree
DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Which is more popular?
Based on our record, DaisyDisk seems to be more popular. It has been mentioned 116 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 | daisydiskapp.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 DaisyDisk 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
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How to Clean Up Storage on Mac with DaisyDisk!
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External articles and on-site reviews we used to compare the two products.

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DaisyDisk is genuinely beautiful software. The sunburst visualization is iconic, and the scan speed is impressive. It's a solid buy if you don't mind paying for a disk utility.
For advanced registry cleaner and advanced disk cleanup and file restore functions on Windows, Mac, and mobile devices, the best software is AVAST and AVG disk cleanup app that has similar functionalities. The best...
DaisyDisk doesn't really store the details on the inspected drive that needs a check each moment you open it.
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
I've been making a lot of use of DaisyDisk over the past year: https://daisydiskapp.com. - Source: Hacker News / 17 days ago
In a similar vein if you are looking for a nice GUI, daisydisk is great: https://daisydiskapp.com one time $10 payment. - Source: Hacker News / 8 months ago
The lowest hanging fruit is to clear caches from whatever package manager you're using. I highly recommend Daisy Disk[0], which shows a folder level breakdown of your disk space usage. Hyperspace[1] is pretty nice as well. It works well... - Source: Hacker News / 9 months ago
When comparing ZIP Code API and DaisyDisk, 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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GrandPerspective is a small utility application for Mac that graphically shows the disk usage...
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Clean, protect and speed up 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 DaisyDisk:

Disk Inventory X is an open source disk space analyzer and disk management tool for the Mac OS X operating systems that allow the OS X users to check for the availability of free space in their machines.
Compare Disk Inventory X to ZIP Code API or DaisyDisk: