
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.

ISideWith
On the Issues
Ballotpedia
GovTrack.us
Facebook Town Hall
Congress.gov
Votegraph
Vote Smart, formerly called Project Vote Smart, is a non-profit, non-partisan research organization...

Which is more popular?
Based on our record, Vote Smart seems to be more popular. It has been mentioned 27 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | postaldatapi.com | justfacts.votesmart.org |
| 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 Vote Smart 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 Vote Smart yet.
Walkthroughs and reviews on video.
PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
More videos
please...VOTE SMART
How often each product is chosen within a category, 0–100% relative to the other.


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


Tracking PostalDataPI since Apr 2026.
I take info about candidates from various sources. Folks should checkout https://justfacts.votesmart.org/ to judge an individual by merit and history, as opposed to pure party affiliation. Source: over 3 years ago
The person who posted the League of Women Voters website beat me to it. There’s also Vote 411 and Vote Smart, Vote.org, and I Side With. All of these have a lot of good info for national, state, and local elections. Source: over 3 years ago
If you wish to find more about US public officials' funding sources, ratings on various issues, etc, here. It's not perfect, but still useful for learning who you'd prefer. Source: over 3 years ago
When comparing PostalDataPI and Vote Smart, 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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See which American political parties, candidates, and ballot initiatives match your beliefs based on the 2019 issues that are most important to you.
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We help businesses improve UX and data quality with a cutting edge address validation service.
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On the Issues or OnTheIssues is an American non-partisan, non-profit organization providing...
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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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Ballotpedia is a nonpartisan online political encyclopedia.
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