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Postio.co.uk VS Queue-it

Compare Postio.co.uk VS Queue-it and see what are their differences

Postio.co.uk

Fast UK address, email & phone validation APIs for developers. Official Royal Mail PAF data. Pay as you go, 100 free lookups.

Rating
0 reviews
Pricing
Paid Free trial £0.02 (Address 2.2p (searching is free), Email & Phone 1p)
Alternatives Is it good?
Queue-it

Queue-it empowers organizations to deliver seamless user experiences and protect their brand reputation by controlling online traffic.

Rating
0 reviews
Alternatives Is it good?
Usejarvis
Turn business tasks into reusable workflows with company context, AI judgement and human approvals. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Queue-it seems to be more popular. It has been mentioned 15 times since March 2021.

social mentions
0 vs 15
Postcode API popularity
100% vs 0%
alternatives listed
11 vs 35

Base details

Website, pricing, platforms and company facts side by side.

Postio.co.uk
Queue-it
Website postio.co.uk queue-it.com
Pricing
Paid Free trial £0.02 (Address 2.2p (searching is free), Email & Phone 1p) Official pricing
Official pricing
Platforms
REST API Web JavaScript Node JS Python Go PHP Ruby .Net Wordpress Zapier +8
—
Company Startup from the United Kingdom · 1 - 9 employees —
Listed in
Address Finder Address Verification API Postcode API Email Verification API Phone Number Validation +2
Visitor Management System Queue Management Queue Queue Management System +1

About Postio.co.uk and Queue-it

In their own words, as submitted to SaaSHub.

Postio.co.uk
Queue-it

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...

Read more about Postio.co.uk

Queue-it helps in high-demand and limited-supply situations—like sneaker releases, ticket on-sales, or government registrations—that can easily overwhelm a website or app. In these high-demand situations, online visitors are redirected to a customizable waiting room and then throttled back to the...

Read more about Queue-it

Features and specs

What each product offers, as listed by its team.

Postio.co.uk 9 features
Queue-it 5 features
  • Address search
    UK address typeahead over Royal Mail PAF data, held under a direct licence
  • Postcode lookup
    Every PAF delivery point at a given postcode
  • UDPRN lookup
    Full address record by Royal Mail Unique Delivery Point Reference Number
  • Email validation
    Syntax, typo correction, MX, SMTP check and deliverability classification
  • Phone validation
    Parse and validate, plus live HLR lookup for carrier, ported status and reachability
  • Pricing model
    Pay per request — 2.2p per address, 1p per email, 1p per phone. No tiers, no contracts
  • Free tier
    100 lookups, no card required
  • API design
    All endpoints are GET and return the same JSON envelope. Public OpenAPI spec, CORS enabled
  • SDKs and integrations
    Official SDKs for JavaScript/Node, Python, Go, PHP, Ruby and .NET. Drop-in browser widget (~4 KB gzipped), MCP server for AI agentsOfficial SDKs for JavaScript/Node, Python, Go, PHP, Ruby and .NET. Drop-in browser widget (~4 KB gzipped), MCP server for AI agents
  • Scalability
    Queue-it can handle sudden spikes in user traffic by delaying requests to manage capacity, making it ideal for events with high demand.
  • User Experience
    By providing a virtual waiting room, Queue-it helps users understand their position in line, improving the experience during peak times.
  • Fairness
    Queue-it ensures that users are served on a first-come, first-served basis, which can improve perceived fairness during high-demand situations.
  • Integration
    Queue-it can be integrated with a variety of web technologies and platforms, making it versatile for different e-commerce sites and services.
  • DDoS Mitigation
    Helps protect against Distributed Denial of Service attacks by controlling the flow of traffic to the website.

Possible disadvantages

  • User Frustration
    While waiting in a queue, some users may become frustrated and abandon the process, potentially leading to lost sales or engagement.
  • Complexity of Setup
    Implementing and configuring Queue-it may require technical knowledge and effort, which could be a challenge for some organizations.
  • Cost
    Queue-it is a paid service, which may be a con for smaller businesses or organizations with limited budgets.
  • Dependency on Third-party
    Relying on an external service can introduce an additional point of failure and dependability in the system.
  • Potential for Extended Wait Times
    If not properly managed, queues might become long, leading to further delays and potential customer dissatisfaction.

Videos

Walkthroughs and reviews on video.

Postio.co.uk 0 videos + Add
Queue-it 3 videos + Add

No Postio.co.uk videos yet. You could help us improve this page by suggesting one.

[Webinar] Get the Most Out of Queue-it

More videos

  • - How does Queue-it's virtual waiting room work?
  • - Queue-it's Custom Queue Layout - Everything You Need to Know

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Postio.co.uk
Queue-it
100% 100%
Postcode API
0% 0%
0% 0%
Visitor Management System
100% 100%
100% 100%
Address Verification API
0% 0%
0% 0%
Queue Management
100% 100%

Questions & Answers

As answered by people managing Postio.co.uk and Queue-it.

What makes your product unique?

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.

Which are the primary technologies used for building your product?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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.

What's the story behind your product?

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.

Who are some of the biggest customers of your product?

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.

User comments

Share your experience with using Postio.co.uk and Queue-it. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Postio.co.uk 0 mentions
Queue-it 15 mentions

Tracking Postio.co.uk since Aug 2026.

View more

Alternatives to Postio.co.uk and Queue-it

When comparing Postio.co.uk and Queue-it, you can also consider the following products.

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