
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.

Waitwhile
SevenRooms
simpleERB
Quandoo
Reserve
ResyOS
TablesReady
Waitlist Me is a great reservation management platform that allows interacting with customers or travelers looking for the booked place in the restaurant with dining appointments, table locations, guests, or waitlists by sending alert notifications …

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | postaldatapi.com | waitlist.me |
| 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 Waitlist Me 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
No analysis of Waitlist Me yet.
Walkthroughs and reviews on video.
PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
More videos
Waitlist Me Overview - Get Started in Minutes
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How often each product is chosen within a category, 0–100% relative to the other.


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When comparing PostalDataPI and Waitlist Me, 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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A reservation, seating and guest management solution for hospitality operators to acquire, engage...
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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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An Electronic Reservation Book for restaurants.
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