Introduction
If you run a UK startup, you’ve probably asked: “Do we really need a custom mobile app, or will a website do?” The answer depends on your goals — but for many UK startups, a well-built mobile app can be a game-changer for growth.
Here’s why UK startups are investing in custom mobile apps in 2025.
1. UK Consumers Expect Mobile-First Experiences
The average UK adult spends over 4 hours per day on their smartphone. Apps load faster, work offline, and provide notifications — none of which are possible with a website alone. If your customers spend significant time on their phones, an app gives you a direct channel to them.
2. Outperform Competitors Who Only Have a Website
Many UK small businesses have websites but no app. A custom mobile app sets you apart immediately, signals credibility, and creates a stickier experience that keeps customers coming back.
3. Push Notifications Drive Repeat Business
Email open rates average around 20% for UK businesses. Push notification open rates can exceed 60%. Whether you’re promoting a sale, sharing a service update, or re-engaging dormant users, push notifications are one of the most effective marketing tools available to UK startups.
4. Better Data and Personalisation
Mobile apps allow you to collect richer user data — location, behaviour, preferences — and use it to personalise the experience. This leads to higher engagement and better conversion rates compared to generic website traffic.
5. Revenue Streams Through In-App Features
Custom apps open new revenue opportunities — subscriptions, in-app purchases, booking integrations, and more. UK fintech, healthtech, and e-commerce startups in particular have found that a well-built app can become their primary revenue channel.
What Does a Custom App Cost in the UK?
Custom mobile app costs vary significantly depending on complexity. A simple business app might start from £5,000–£15,000, while a feature-rich marketplace or platform could run from £30,000 upwards. The key is working with a development partner who can scope your requirements accurately and build iteratively.
Get Your UK Startup App Built
eWeebo builds iOS and Android mobile apps for UK startups and businesses. We offer a transparent development process with fixed pricing and dedicated support. Request a free quote today.