PiehSoft · Design & Software Engineering · Phoenix, AZ
Native iOS apps and the software behind them, designed and built end to end.
I'm William Pieh, and PiehSoft is my practice. I rebuild iPhone apps and the backend, data, and AI systems around them, and I do the design and the engineering myself, from the first audit to the App Store.
5,000+
Hunters on HornScore
$100K+
In leads a year, automated
14%
Of a campus in 3 weeks
Since 2021
Shipping production
Selected work
Every project below is in production. Each case study covers what was built, how, and what it achieved.
01Case study
HornScore
A native iOS rebuild for 5,000+ hunters
5,000+Production users
02Case study
Halo+
A student app used by 14% of campus within three weeks
14%Of the student body, 3 weeks
03Case study
Lead Generation Pipeline
An automated lead pipeline for a regional bank
$100K+Annual lead value
04Case study
Breeze Job Finder
Three contracts, from frontend work to architecture
3Contracts, each wider in scope
From the Halo+ review
“This is one of the most impressive things I've ever seen, and what you guys have done is really clever. It's on the level with when we ask full-stack developers to go and do work.”
GCU Assistant Vice President of Campus Technology
Follow-up review of Halo+
“With what you had worked with, that's well thought out, really. If we were betting on mistakes I would expect somebody to make, you've mitigated many of those mistakes in your own thinking.”
GCU Chief Information Security Officer
Architecture review of Halo+
How I work
The same three steps on every engagement
01
Audit before building
In the first week I review the codebase, security, and running costs, and write up what I find, ranked by risk. Anything urgent is fixed before feature work starts.
How it went at HornScoreCodebase auditWeek one
- SecurityAccess rules, secrets, exposed data
- ArchitectureStructure, dependencies, weak points
- Running costsWhat each month costs, and why
- Tests & docsWhat exists and what's missing
You get
A written report, findings ranked by risk, and the urgent ones already fixed.
About
About me
I'm a designer and engineer in Phoenix, and I've been shipping production software since 2021. I work across iOS, the web platforms around it, and the AI and data systems that connect them, from research and design through running it in production.
I work best with businesses whose core app works but has outgrown its codebase or its design, and with teams that want AI or automation added to a product they already run without breaking it.
You work with me directly: the person who audits your code is the one who designs the screens and writes the software.
- Based in
- Phoenix, AZ
- Time zone
- Arizona (MST)
- william-pieh ↗
- GitHub
- WTPieh ↗
What I do
iOS product design & engineering
Native SwiftUI apps, from research and component systems through App Store launch. Past work includes field tools, data capture, and consumer apps.
UI/UX modernization
Rebuilding the interface of an app that works but feels dated, while keeping its data, integrations, and users. Most engagements start here.
Backend & data pipelines
Production data pipelines, server-side APIs, and integrations with the systems a product depends on.
Studio & agency partnerships
I also take on mobile and backend builds for studios and agencies, under your brand or mine. You keep the client relationship; I handle the build and stay on through handoff and upkeep.
Contact
Tell me about your project.
We start with a 30-minute call to scope the work. Standard contracts run 6–10 weeks, and longer retainers are available for ongoing product work.
Book a 30-minute call
Or reach me directly