
Postio.co.uk
Ideal postcodes
Fetchify
Smarty
Data8 UK
ZIP Code API
Data8 UK PredictiveAddress
The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

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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| Website | postaldatapi.com | daisydiskapp.com |
| Pricing | ||
| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate — $0.000028 per query with no tiers or subscriptions. What you get back: Up to 18 metadata fields per postal code — city, state/region, coordinates,...
No description of DaisyDisk yet.
What each product offers, as listed by its team.


Possible disadvantages
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.
PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
More videos
How to Clean Up Storage on Mac with DaisyDisk!
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PostalDataPI and DaisyDisk. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of PostalDataPI yet. Be the first one to post
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 PostalDataPI since Apr 2026.
I've been making a lot of use of DaisyDisk over the past year: https://daisydiskapp.com. - Source: Hacker News / 18 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 PostalDataPI and DaisyDisk, you can also consider the following products.

Fast UK address, email & phone validation APIs for developers. Official Royal Mail PAF data. Pay as you go, 100 free lookups.
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We help businesses improve UX and data quality with a cutting edge address validation service.
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Clean, protect and speed up your Mac
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Fetchify delivers fast, accurate address, email, phone and bank validation tools that help businesses capture clean, verified customer data, reduce failed deliveries and improve checkout experiences worldwide.
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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.
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