App development
for Newcastle businesses
Mantar Tech builds custom web and mobile apps for businesses in Newcastle and the North East. Energy tech, financial software, SaaS platforms — fixed price from £8,000. UK-registered, remote-first delivery.
Software development services for Newcastle
Web App Development
Energy monitoring dashboards, financial software, SaaS platforms and B2B tools. React, Next.js, Node.js. From £10,000.
Learn more →Mobile App Development
iOS and Android apps — field energy monitoring tools, consumer apps and enterprise mobility. React Native or Flutter. From £12,000.
Learn more →Custom Software
Bespoke workflow tools, API integrations and data platforms for Newcastle's energy, financial services and digital sectors. From £10,000.
Learn more →Why location doesn't limit quality
How we work with Newcastle clients
We're remote-first — all delivery is structured around video calls, sprint demos and shared project management. Newcastle clients get the same quality, process and senior developers as any UK client. No travel overhead baked into your quote.
What the process looks like
- Week 1: Discovery call — scope, budget, timeline
- Week 2–3: Design sprint — wireframes, UI, architecture
- Week 4+: Iterative builds with weekly reviews
- Final: QA, staging, sign-off, live deploy
- Post-launch: 30-day support included
What does app development in Newcastle cost?
MVP / Simple App
£8,000–£20,000
8–12 weeks · Fixed price · Web or mobile
Business Platform
£25,000–£60,000
14–20 weeks · SaaS, dashboards, integrations
Complex Platform
£60,000+
6–12 months · Enterprise, marketplace, ERP
Why Newcastle businesses choose Mantar Tech
Newcastle's strong engineering heritage and growing startup scene make it a strong fit for custom software that needs to scale.
As a rising Northern tech hub in North East England, the city has a strong base in fintech, digital manufacturing, public sector software and healthtech. We have worked with businesses across these sectors — building platforms that are fast to launch, easy to maintain and built to grow.
How we work with Newcastle clients
All projects start with a free 30-minute discovery call. We define scope, timeline and a fixed price before any work begins. No hourly billing, no surprise invoices.
Our typical engagement for a Newcastle business:
- Week 1–2: Discovery, wireframes and technical specification
- Week 3–8: Development sprints with weekly updates
- Week 9–10: Testing, QA and client review
- Week 11–12: Launch and post-launch monitoring
You own 100% of the source code from day one. No vendor lock-in, no subscription fees to us after launch.
Coverage across North East England
We serve clients across the North East including Gateshead, Sunderland and Durham — fully remote delivery.
Newcastle app development questions
Do you build energy management software?
Yes. Newcastle is a hub for clean energy and offshore wind. We build energy monitoring dashboards, fleet tracking for offshore vessels, IoT data platforms and reporting tools for energy businesses in the North East.
Can you build financial software for Newcastle businesses?
Yes. With Sage headquartered in the North East and a strong financial services sector, we're familiar with accounting software integrations, fintech tools and financial platform development.
How do I start a Newcastle project with Mantar?
Contact us with what you're building, who uses it and your rough budget. We respond within 24 hours and can have a scoping call booked inside 48 hours.
Do you help Newcastle startups with MVPs?
Yes. We offer startup MVP development from £8,000 — fixed price, 6–10 weeks, no equity taken. Newcastle's growing tech and university spinout scene is a great fit for our MVP-first approach.