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Vim
Notepad++
Node.js
Microsoft Visual Studio
GitHub
IntelliJ IDEA
Build and debug modern web and cloud applications, by Microsoft

Ideal postcodes
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Data8 UK
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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.

Which is more popular?
Based on our record, VS Code seems to be more popular. It has been mentioned 1221 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | code.visualstudio.com | postio.co.uk |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States | Startup from the United Kingdom · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of VS Code yet.
Postio (postio.co.uk) is a developer-focused data validation platform providing real-time UK address lookup, email verification, and phone validation via plain REST APIs and drop-in SDKs. As an official Royal Mail PAF Solutions Provider, Postio synchronises 30M+ UK addresses daily for accurate...
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
No analysis of Postio.co.uk yet.
Walkthroughs and reviews on video.
My New Favorite Text Editor - Visual Studio Code
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing VS Code and Postio.co.uk.
Postio.co.uk's answer:
Postio charges only when a lookup returns a result — searching is free. Address, email and phone validation sit behind one API with a single JSON response envelope, so you integrate once rather than stitching three vendors together. Address data comes from Royal Mail's Postcode Address File under a direct licence, not scraped or resold sources. There are no tiers, contracts or minimum spend, and the first 100 lookups need no card.
Postio.co.uk's answer:
A REST API served from edge locations, with official SDKs for JavaScript/Node, Python, Go, PHP, Ruby and .NET, all open source on GitHub. The API is documented by a public OpenAPI specification.
Postio.co.uk's answer:
Pricing is published and pay-as-you-go: 2.2p per address, 1p per email, 1p per phone, billed only on a result. No sales call, no annual contract, no minimum commitment. You can be live in a few minutes with 100 free lookups and no card, and the same API covers all three validation types. For UK addresses specifically, the data is licensed directly from Royal Mail rather than obtained second-hand — which matters after the 2025 High Court ruling on database rights in this market.
Postio.co.uk's answer:
Developers and technical teams building UK-facing forms — ecommerce checkouts, signup flows, CRM and logistics systems. Typically small to mid-sized product teams, agencies building for UK clients, and software vendors embedding address lookup in their own product. It suits anyone who wants a UK-accurate API without an enterprise procurement process.
Postio.co.uk's answer:
Postio is a trading name of Onno Group Limited, registered in England & Wales (company no. 08622799). It was built to make Royal Mail PAF-accurate UK validation available on straightforward pay-as-you-go pricing, rather than the contracts and minimum commitments that have been standard in this market. Address, email and phone validation were brought together behind one consistent API so a team can solve all three at once.
Postio.co.uk's answer:
Serving a huge range of customers across the world looking for a blazing fast UK Address AIP product. From bootsrapped entrepreuners to FTSE 250 companies. We serve them all.
Share your experience with using VS Code and Postio.co.uk. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


If you're a Windows DBA who mainly manages servers, SSMS is still hard to beat. SQL Server Data Tools makes the most sense for teams building database projects in Visual Studio, Visual Studio Code with the MSSQL...
Visual Studio Code, commonly known as VS Code, is a powerful and extensible code editor developed by Microsoft. With its rich ecosystem of extensions and features like IntelliSense, debugging, and Git integration, VS...
Finally, the Visual Studio Code website has numerous tabs for you to learn about the software. The documentation page walks you through steps like the setup and working with different languages. You’re also able to...
We have no reviews of Postio.co.uk yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


VS Code is where I do most of my work, but whenever I needed to properly review a PDF, I kept switching to another app just to highlight a passage, leave a comment, or sign a document. - Source: dev.to / 3 days ago
Your editor of choice works fine here. VS Code with the TypeScript extension catches type errors early, and WebStorm and Sublime Text are solid alternatives. Install jq if you want to inspect API responses from the terminal without... - Source: dev.to / 5 days ago
Download VS Code from code.visualstudio.com, unzip it, and drag it into Applications. Running it from the Downloads folder causes update problems later. - Source: dev.to / 15 days ago
Tracking Postio.co.uk since Aug 2026.
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