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Company directory

App development companies in London

Studios that design and build mobile and web apps for iOS, Android and the browser.

10 companies

iOS app developers

We Are Affective

London, United Kingdom

London mobile app strategy, UX and design agency that publishes starting prices for its service tiers.

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Web app development

AVAMAE

London, United Kingdom

London bespoke software developer using AI-assisted delivery with UK-based engineers, ISO 27001 certified.

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Web app development

Bit Zesty

London, United Kingdom

London Ruby on Rails developer founded in 2009, also offering fractional CTO and AI consulting.

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Web app development

Blott

London, United Kingdom

Works with International; teams in London, New York, Cape Town and Colombo

London AI design and engineering consultancy building AI-native products and agent systems.

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iOS app developers

Stakk

London, United Kingdom

London mobile app agency building native iOS and Android apps since 2016.

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Web app development

Steer73

London, United Kingdom

Works with UK enterprise and SME clients

London digital transformation agency founded in 2014, building custom software, web platforms and apps.

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App development companies

Studio Graphene

London, United Kingdom

Works with UK and international; studios in India

London product studio founded in 2014, designing and building AI-native digital products and MVPs.

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Web app development

THEY.dev

London, United Kingdom

Works with UK businesses

London custom software and app developer founded in 2017, building MVPs through to complex platforms.

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Web app development

ustwo

London, United Kingdom

London digital product studio designing and building apps and digital services, with studios in Malmo and New York.

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Un

Web app development

Undefined

London, United Kingdom

Works with UK and international

London digital product studio researching, designing and developing web and mobile products since 2018.

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App development companies design, build and publish mobile and web apps. The first decision is native or cross-platform: native iOS and Android apps written in Swift and Kotlin, or one shared codebase in Flutter or React Native that runs on both.

Native suits apps that lean on the latest device features or need the best possible performance. Cross-platform suits most business and consumer apps and usually costs less to build and maintain. Web apps run in the browser with no app store at all.

Ask each studio for apps you can download and try, who handles App Store and Google Play submission, how they price updates after launch, and whether the back end and admin panel are included in the quote.

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