Rapid Custom Builds is the umbrella service behind Fast Builds: a purpose-built experience shaped around one organisation's own need, rather than an off-the-shelf product, delivered on a short, published timeline. It sits above the other Fast Builds capabilities, Web, Mobile, Games, AI and XR, as the general service model each of those specific build types is delivered through.
PTR publishes that timeline directly: "Rapid prototypes from 2 business days. Full builds up to 8 working weeks." Delivery runs through four published steps: Brief ("Define the problem, outcome and constraints"), Build ("Turn the idea into something people can use"), Test ("Put the working build in front of the people who matter"), and Launch ("Refine, deploy and keep evolving"). As PTR puts it: "You see working builds in sprints, not a single reveal at the end."
PTR has also published a fuller five-stage process describing how a custom build is run in practice: Discovery & Consultation ("We understand your goals and identify the best tech solution"), Co-Design Workshops ("Collaborative sessions to shape the experience with your team"), Prototyping & Development ("We build custom environments, characters, and features"), Testing & Deployment ("Delivered across platforms with analytics and support built-in"), and Ongoing Support ("We stay with you to evolve and optimise the experience"). This sits alongside PTR's wider approach.
The four published steps are the outer timeline a client sees; the five stages are the practice underneath it. A fast build still trades some scope for speed: it suits a well-defined problem that can be shaped and tested in sprints, and a longer, more heavily co-designed engagement is the better fit when the brief itself is still being worked out, or when the build needs to integrate deeply with existing systems and content.
To see the other Fast Builds capabilities, visit the Fast Builds overview page. If you would like to talk through a custom build, the Contact Form is one tap away in the site menu, and in the footer of every page.
A rapid custom build is not a shortcut past co-design: it is the same five-stage process PTR runs for any custom build, compressed into a short, published timeline through fast, visible sprints rather than a single reveal at the end.
Fast Builds overview · Web experiences · Games and interactive experiences · Our approach