Custom Apps

Shopify apps, internal tools, React Native. Complete solutions tailor built for your business.

There is a lot of software being generated right now that works in the demo and falls over in month three. We build the other kind. Tested, documented, deployed properly, and still maintainable by someone who is not us.

Scope a custom build

01 / Who this is for

Four situations we see most.

02 / What is included

Everything in the build.

Custom Shopify apps: private, custom and public, with proper OAuth and scope handling

05 / Related work

FAQ

Start a project

hello@pencilz.works

Brands who have hit the ceiling of what apps from the Shopify store can do

Teams running critical operations in a spreadsheet that three people understand

Companies with a mobile product that needs a rebuild rather than another patch

Anyone quoted an enterprise price for something that should be a small tool

Internal tools: ops dashboards, inventory and fulfilment tooling, admin interfaces

React Native apps for iOS and Android from one codebase

API and integration work: Storefront API, Admin API, webhooks, headless patterns

Data migrations off legacy platforms

Testing, CI and deployment set up from day one, not retrofitted

03 / How it works

Five phases. Scoped to you.

PHASEDURATIONWHAT HAPPENS

01 Definition

1 to 2 weeks

What it does, what it does not do, what it costs. Written down before anyone builds.

02 Prototype

1 to 2 weeks

A working thing you can use, not a clickable mockup.

03 Build

4 to 12 weeks

Two-week increments, deployed to staging each time.

04 Ship

1 week

Production deploy, monitoring, docs, handover.

05 Support

Ongoing

We stay on it, or hand it to your team with documentation they can actually follow.

Price band

Small tools from $8k. Full applications from $30k.

State a number. "Custom proposal" costs you the enquiries from people who were qualified and just wanted to know if they were in range.

Thensome

/ Product, Design, Development