Jason Kneen

I am a UK-based freelance and award winning iOS / Android app developer; consultant, and part-time CTO, responsible for managing and developing cross-platform native mobile apps for iPhone, iOS, iPad, Android and the Web. Jason Kneen

I develop cross-platform native apps for iPhone, iPad, iOS, Android and Windows Phone using the Titanium SDK, React Native, and Flutter. I work with startups, SMEs and corporates all over the world -- either developing a new app or working as part of a team on existing projects. I also work with startups and companies in a part-time CTO role, assisting with with managing OR building a development team, and helping secure funding. In addition, I work as a consultant, assisting in developing prototypes, wireframes, requirements and even helping pitch to investors. Occasionally I do some .NET and Classic ASP web development. I also speak at conferences all over the world on cross-platform native development. If you have an app idea for IOS or Android, you're an individual, startup or SME / corporate, then please get in touch.

  • Cross-Platform Native Mobile Apps

    Native Apps for iPhone, iPad, iOS, Android using Titanium, React Native & Flutter.

  • Web, Mobile Web Apps & API developement

    HTML, CSS, JavaScript, jQuery, ASP, .NET, SQL Server, PHP, MongoDB, Node JS, Parse Server.

  • CTO support & Consultancy

    CTO support, Solution architecture, Prototyping, Best Practice, Code Reviews, Lead Developer, building and managing teams

  • Developer Relations, Speaking & Writing

    Developer Relations, Speaking at conferences, meet-ups, authoring technical books on App development.

My Work

  • walksafe

    Part-time CTO, LitterLotto

    iOS / Android

    Working with Award Winning LitterLotto as their part-time CTO assisting them push forward the development of their app that encourages picking up litter in exchange for spot and weekly prizes and awards. I manage their entire technical stack, working with their off-shore development team building apps using React Native and Firebase / Google Cloud. Along with some hands-on development too I also act as Product Manager working to add new and exciting features, working with major brands like McDonalds and local and county councils across the UK.

  • walksafe

    Help Me Angela

    iOS / Android

    I worked with Help Me Angela as part-time CTO to help them establish a new development team, consoldate and secure their code, develop and deploy new safety features and drive development forward, with significant safety innovations and app features.

  • walksafe


    iOS / Android

    I was brought on as part-time CTO to help build a new version of their walking safety app with the goal of raising investment. I successfully achieved this after 6 months of development and now WalkSafe is in a perfect position to move forward with future development.

  • opus

    Opus Workspaces

    iOS / Android

    Working CTO as a part-time CTO and mobile developer -- Opus is a coworking platform that provides you the freedom to work wherever you want in the city, with a membership which gives you access to creative and unique co-working offices, caf├ęs and hotel lobbies.

  • sesgroup

    SES Group

    iOS / Android

    The SES Group provide security and crowd management for corporate clients, community events and even individual use across the United Kingdom.

  • betconnect

    Betconnect sports betting

    iOS / Android

    The only betting exchange that uses bookie prices and connects professional gamblers with punters looking for an edge.

  • cookbook

    Titanium Cookbook

    Print / eBook

    Over 100 recipes to help you develop cross-platform iOS and Android applications in JavaScript with the Appcelerator.

  • dealer

    The Dealer App

    iOS / iPhone

    Developed for The Dealer and helps people find the best deals and offers and events locally based on their location.

  • jobswipe


    iOS / Android

    JobSwipe, is a unique Job Search application for iOS & Android. (Since 1.0.5, this is now maintained by the client).

  • scottandsid

    forghetti password manager

    iOS / Android

    A totally unique take on password managers, that doesn't store your passwords anywhere and is therefore un-hackable.

  • bootcamp

    Boot Camp

    iOS / Android

    Boot Camp, a best-selling Mobile app for iOS & Android, reached No.1 in Health & Fitness and No.6 in the iOS AppStore.

  • cima

    CIMA Cert BA

    iOS / Android

    Developed for CIMA tests, and customisable to support other tests, with in-app purchases and managed by a web based control panel.

  • uktv

    UKTV Play

    iOS / Android

    Working with the UKTV team developing new features and services for the iOS and Android video streaming apps.

  • honda

    HONDA Approvals

    iPhone / Enterprise

    Developed for Honda this app is deployed internally within the enterprise to manage expense claims.

  • stonehenge

    Stonehenge Audio Tour

    iPhone / Android

    Allows visitors to this ancient monument to download and play a guided tour as they walk around the Stonehenge tour .

  • dentons



    Dentons Business Directory. I wrote the initial iOS / Android app and then handed over development to the client's in-house team.

TCAD Certified Solutions Architect for Appcelerator, Inc TCAD Certified Solutions Architect for Appcelerator, Inc Six Pack Productions
ITV YouGov Bed Bath & Beyond
School of the Legends Brewdog CareMeds
EMC Karcher Antenna International