
Superhuman
Shortwave
Spark Mail
FiloMail
Mimestream
Leave Me Alone
Clean Email
The best and most innovative mail app to master your overloaded mailbox.
Ideal postcodes
Postio.co.uk
USZipLookup
Zipcodestack
Fetchify
Data8 UK
Geocode.xyz
Postal code lookup API and downloadable country datasets for address validation, checkout, logistics and geocoding workflows.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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PC
PostalCodes.info
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| Website | info.easi.net | postalcodes.info |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
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An editorial look at what each product does well and who it suits.

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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 InboxZero and PostalCodes.info, you can also consider the following products.

Superhuman is an email management tool.
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Email smarter & faster with a reinvented experience for your Gmail
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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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Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
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Find any US ZIP code or Canadian postal code instantly. Search by city, address or code - get accurate location, county & population data free.
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