Top 10+ Cross Platform App Development Companies in United Kingdom (UK) | Cross Platform App Developers United Kingdom 2026

Last Updated 22nd July 2026 | Category: Top App Development Firms

The List Of Top 10+ Cross Platform App Development Companies in United Kingdom (UK) | Top Cross Platform App Developers United Kingdom 2026

1. Hyperlink InfoSystem

Not Claimed
Founded 2011
Employees 1000+
Hourly Rate < $25
Our Rating 5.0/5 (65 reviews)
Avg. Project Cost GBP 37,917+
Contact No +13097914105
Email info@hyperlinkinfosystem.com
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mobile app development
web development
vr app development
ar app development
wearable app development
iot app development
ui-ux design

2. Alt Agency

Not Claimed
Founded 2011
Employees 10 - 49
Hourly Rate N/A
Our Rating 4.8/5 (7 reviews)
Avg. Project Cost GBP 1,895,887+
Contact No +441216630202
Email hello@altagency.co.uk
View Profile Visit Website
mobile app development
web development
ui-ux design
web design
e-commerce development
social media marketing
seo
content management system

3. Waracle

Not Claimed
Founded 2004
Employees 50 - 249
Hourly Rate $100 - $149
Our Rating 4.5/5 (6 reviews)
Avg. Project Cost GBP 1,895,887+
Contact No +441382529528
Email d.romilly@waracle.com
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mobile app development
web development
ui-ux design
web design
e-commerce development

4. Xibis

Not Claimed
Founded 1998
Employees 10 - 49
Hourly Rate N/A
Our Rating 4.6/5 (7 reviews)
Avg. Project Cost GBP 37,917+
Contact No +441162729990
Email info@xibis.com
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mobile app development
web development
internet of things
e-commerce development

5. Somerset Design

Not Claimed
Founded 2000
Employees 10 - 49
Hourly Rate $150 - $199
Our Rating 4.7/5 (6 reviews)
Avg. Project Cost GBP 1,895,887+
Contact No +441172140054
Email joinus@somersetdesign.co.uk
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mobile app development
web development
ui-ux design
web design
branding
e-commerce development
seo

6. Ph.Creative

Not Claimed
Founded 2004
Employees 10 - 49
Hourly Rate N/A
Our Rating 4.5/5 (8 reviews)
Avg. Project Cost GBP 18,958+
Contact No +441512275549
Email liverpool@ph-creative.com
View Profile Visit Website
mobile app development
web development
ui-ux design
web design
e-commerce development
social media marketing
seo

7. Tubik Studio

Not Claimed
Founded 2013
Employees 10 - 49
Hourly Rate $25 - $49
Our Rating 4.4/5 (7 reviews)
Avg. Project Cost GBP 3,791,775+
Contact No +1 650 731 0320
Email mail@tubikstudio.com
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mobile app development
web development
ui-ux design
web design
branding

8. IDAC Media

Not Claimed
Founded 2011
Employees 2 - 9
Hourly Rate $150 - $199
Our Rating 4.6/5 (7 reviews)
Avg. Project Cost GBP 75,835+
Contact No +441412213898
Email contact@idacmedia.com
View Profile Visit Website
mobile app development
web development
ui-ux design
web design
branding
e-commerce development
social media marketing
seo

9. Dreamr

Not Claimed
Founded 2014
Employees 10 - 49
Hourly Rate $50 - $99
Our Rating 4.5/5 (7 reviews)
Avg. Project Cost GBP 7,583+
Contact No +441618261443
Email sv@dreamr.uk
View Profile Visit Website
mobile app development
web development
ui-ux design

10. Modular Digital

Not Claimed
Founded 2011
Employees 2 - 9
Hourly Rate $150 - $199
Our Rating 4.6/5 (6 reviews)
Avg. Project Cost GBP 75,835+
Contact No +441173258050
Email studio@thisismodular.co.uk
View Profile Visit Website
mobile app development
web development
ui-ux design
web design
branding
digital strategy

FAQs

What are the best App Development companies in UK that specialize in Cross Platform?
The leading App Development companies in UK specializing in Cross Platform are recognized through verified client review platforms, independently validated portfolio depth, and a track record of measurable delivery outcomes across multiple industries. Cross-reference at least three separate review platforms and request case studies where the Cross Platform solution improved a client's business metrics — not just shipped features on time. Firms that have sustained client relationships over three or more years in the Cross Platform space consistently outperform those with a larger volume of short-term engagements.
How strong is the Cross Platform engineering talent pool in UK?
UK's Cross Platform engineering talent pool is deep and growing, supported by strong university computer science programs, active professional certification pathways, and a culture of continuous technical development that goes beyond formal employment requirements. Engineers specializing in Cross Platform in UK regularly contribute to global open-source projects and participate in international hackathons, reflecting a level of technical engagement that indicates genuine domain investment. Leading App Development companies in UK run internal Cross Platform knowledge programs and sponsor team attendance at major industry conferences to maintain edge expertise and reduce attrition in key Cross Platform roles.
Do App Development companies in UK offer fixed-price contracts for Cross Platform projects?
Yes, most established App Development companies in UK offer fixed-price contracts for Cross Platform projects where scope, timeline, and deliverables are fully defined before work begins. These contracts typically structure payments around defined milestones — commonly 30% upfront, staged payments at delivery checkpoints, and a 10–15% retention held until go-live sign-off. Always ensure the fixed-price agreement includes a documented change request process with clear cost implications so any scope adjustments to your Cross Platform project are managed transparently rather than absorbed silently into delivery risk.
What criteria does this directory use to evaluate App Development firms in UK for Cross Platform projects?
This directory evaluates App Development firms in UK for Cross Platform work across five primary criteria: verified client references weighted at approximately 40%, depth and relevance of the Cross Platform project portfolio, team technical qualifications and vendor certifications, demonstrated delivery history, and overall client satisfaction scores. Firms that submit only self-reported Cross Platform metrics without third-party client verification are scored at a lower confidence tier and ranked accordingly. These criteria exist so buyers can efficiently identify the most credible App Development companies in UK for Cross Platform work without needing to conduct all due diligence independently.
How transparent are App Development companies in UK during Cross Platform project delivery?
Leading App Development companies in UK maintain real-time transparency during Cross Platform delivery through client-accessible sprint boards, weekly written status summaries, recorded sprint demos, and staging environments that give clients direct visibility into build progress without waiting for formal milestone reports. Clients should never have to request basic Cross Platform progress updates — these should arrive proactively on a defined schedule from the first week of the engagement. A App Development firm in UK that provides visibility only when asked, or that resists granting clients access to live Cross Platform environments before formal milestones, is exhibiting a transparency deficit that typically signals deeper delivery problems downstream.
How do App Development companies in UK integrate Cross Platform solutions with CRM and marketing tools?
App Development companies in UK experienced with Cross Platform and CRM/marketing integrations commonly connect Cross Platform solutions with platforms such as Salesforce, HubSpot, Zoho, and Marketo — routing user and lead data captured through your Cross Platform product directly into the sales pipeline with accurate attribution tracking. Well-architected Cross Platform CRM integrations typically reduce manual data entry by 80–90%, improve lead response times, and give the sales team richer behavioral context for every prospect interaction. Share your full existing marketing technology stack with your App Development partner in UK at project kickoff so they can design clean Cross Platform integration architecture from day one rather than retrofitting it after go-live.
Where can I find verified case studies from App Development companies in UK covering Cross Platform work?
Verified Cross Platform case studies from App Development companies in UK are published on platforms such as Clutch, GoodFirms, and The Manifest — all of which require third-party client validation before a case study is listed publicly. The most informative Cross Platform case studies include the client's initial challenge, the proposed solution approach, the technologies and architecture used, the delivery timeline, and quantified outcomes such as a 40% reduction in load time or a 25% improvement in conversion rate. Prioritize App Development firms in UK whose Cross Platform case studies match your project in both industry vertical and technical complexity — this alignment is the strongest leading indicator of delivery fit.

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