# Rectangle Red > Rectangle Red is a UK software company in Milton Keynes, building bespoke software since 2007. It makes AI-built apps secure and ready for real business use, and builds software for businesses that don’t have it yet. All development is in-house, with no offshoring. ## Key facts - Legal name: Rectangle Red Limited, company number 05932901 - Address: 11 Claremont Avenue, Stony Stratford, Milton Keynes, MK11 1HG, United Kingdom - Phone: 01908 887180 - Email: info@rectanglered.com - Website: https://www.rectanglered.com/ - Serves: businesses across the UK - Customers talk directly to engineers. There is no sales team. - Customers own their code, hosting, domain and data. ## Who it suits - A UK business that built an app with AI tools such as Claude, ChatGPT, Lovable, Cursor or Replit, and now relies on it or wants to launch it. - A business whose app is broken, or whose AI tool keeps making it worse. - A business whose developer has left, or that depends on an old Microsoft Access, PHP or WordPress system. - A business that needs bespoke software, a portal, a mobile app or practical AI automation. - A business that has outgrown IT support but doesn’t need a full-time CTO. ## Prices for existing apps All prices exclude VAT. - Snag Check: free. An automatic first look based on the visitor’s answers. - App Health Check: £395 - Production Readiness Audit: £1,495 - Hardening & Go-Live: typically £3,000–£9,000 - Application Care: £295, £695 or £1,295 per month - Extra engineering: £100 per hour or £750 per day, by agreement New software is scoped first. Daniel AI gives a free scope and timeline, then an engineer checks the cost estimate. ## What it doesn’t offer - An audit isn’t a penetration test. Accredited testing can be arranged separately. - No guarantee that an app is secure. Findings state what was and wasn’t checked. - Snag Check doesn’t inspect the app and isn’t a security assessment. - Hardware support. Partners can be recommended. ## Get your AI app live - [Get your AI app live](https://www.rectanglered.com/get-your-ai-app-live): Built with Claude, Lovable, Cursor or Replit? UK engineers audit your vibe coded app for security, backups and deployment. From £1,495 + VAT. - [Check my app](https://www.rectanglered.com/check-my-app): Is your app ready to launch? Check your application with a free Snag Check, or get an independent audit by UK engineers from £1,495 + VAT. - [Fix my app](https://www.rectanglered.com/fix-my-app): App not working, or the AI keeps making it worse? UK engineers find what’s really wrong and fix your app, keeping what works. Priced from an agreed plan. - [Secure my app](https://www.rectanglered.com/secure-my-app): Is your AI app secure? UK engineers review who can see your data, keys left in the code, database permissions and open admin pages. From £1,495 + VAT. - [Run my app](https://www.rectanglered.com/run-my-app): Hosting, backups, monitoring and support for your live app, in accounts your business owns. Application Care from £295/month + VAT. ## Get it built - [Bespoke software](https://www.rectanglered.com/bespoke-software): Bespoke software development for UK businesses, designed and built in-house in Milton Keynes since 2007. No offshoring. Talk directly to engineers. - [Web portals](https://www.rectanglered.com/web-portals): Customer, supplier and staff portals connected to your existing systems. Bespoke web portal development, built in-house in the UK by Rectangle Red. - [Mobile apps](https://www.rectanglered.com/mobile-app-development): iOS and Android app development for UK businesses, built in-house in Milton Keynes. Speak directly to the engineers building your app. - [AI automation](https://www.rectanglered.com/ai-automation-services): Practical AI automation for UK businesses: read documents, route messages, inspect images and forecast demand. See it work before you commit. - [Legacy systems](https://www.rectanglered.com/legacy-systems): Your developer left and your software stayed? We take over legacy systems, rescue Microsoft Access, PHP and WordPress apps, and modernise step by step. - [Fractional CTO](https://www.rectanglered.com/fractional-consultancy): Part-time technical leadership for UK businesses that have outgrown IT support: strategy, AI planning and supplier oversight, without a full-time hire. ## Free tools - [Snag Check](https://www.rectanglered.com/snag-check): Is your app ready to launch? Answer a few questions and get a free go-live checklist for your AI-built app by email, from UK software engineers. - [Daniel AI](https://www.rectanglered.com/daniel-ai): Tell Daniel what you want to build. Get a free project scope and timeline by email in minutes, and a checked cost estimate within one business day. - [KDP Royalty Tracker](https://www.rectanglered.com/kdp-royalty-tracker): A free, private Chrome extension that turns your Amazon KDP royalty reports into a clear dashboard. Your data never leaves your browser. ## Company - [Case studies](https://www.rectanglered.com/case-studies): See how Rectangle Red has helped UK businesses with bespoke software, portals and apps, in our clients’ own words. - [About](https://www.rectanglered.com/about-us): Rectangle Red has built bespoke software since 2007, from Stony Stratford, Milton Keynes, for businesses across the UK. - [Careers](https://www.rectanglered.com/careers): Software development careers at Rectangle Red, Milton Keynes. Small company, interesting work, home at five. - [Start a project](https://www.rectanglered.com/start-a-project): Tell us what you’ve built or what you need. Talk directly to engineers, or let Daniel AI scope it for you right now. ## Optional - [Privacy](https://www.rectanglered.com/privacy-policy): How Rectangle Red collects and uses personal information. - [Cookies](https://www.rectanglered.com/cookies): The cookies this site uses, and how to change your choice. - [Terms](https://www.rectanglered.com/terms-of-use): The terms for using the Rectangle Red website.