All-purpose skills. Built for your purpose.

Your ideas. Made from scratch.

I'm Josh, the developer behind All-Purpose Apps. I build custom software for businesses and big ideas.

View selected work Explore services

07 selected productsFrom scratch through launchAll-purpose across platforms

Selected work

Products shaped around real needs.

Seven products across web, mobile, and cloud—with capabilities and build stages shown.

01Featured product

Event platform · Product engineering

Boothline

Interactive product concept · Production path documented

A reusable song-request platform with a host workspace and mobile-first guest pages.

Challenge

Make live song requests easy for guests and manageable for hosts across different event types.

Solution

One product system for event creation, branded guest pages, QR sharing, search, and live queue operations.

Fuzzy matching across a 10,000-song catalog
Cross-tab synchronization with guarded request rules
Timezone-aware scheduling and reusable event themes

React · TypeScript · Product design · Responsive web

Boothline event dashboard showing event and request activity

Host workspace

02Event utility

Guest photography · Mobile cloud application

Gatherroll

Private event application · Built for mobile browsers

A private, disposable-camera-style experience for wedding guests, with event controls and direct cloud delivery.

Challenge

Collect candid guest photos without requiring an app-store download or a complicated upload flow.

Solution

A mobile-first capture experience with photo limits, previews, private administration, and Google Drive delivery.

Google OAuth and Drive upload integration
Secure sessions, password rotation, and D1 persistence
Installable experience with offline fallback

React · OAuth · Cloudflare · Google Drive

Designed around the phone already in every guest's hand

03Selected product

Operations dashboard · Realtime collaboration

Wedding Dashboard

Single-event operations tool

A shared operations board that turns wedding planning into one coordinated view of vendors, payments, tasks, documents, and day-of timing.

Realtime shared state across collaborators
Payment ledger with duplicate safeguards
Document uploads and change attribution

JavaScript · Supabase · GitHub Pages

04Selected product

SaaS platform · Workflow engineering

Builtproof

Product build in progress

A mobile-first business workspace for tradespeople to manage customers and jobs, create professional documents, and keep work moving in English or Spanish.

Customer and job pipeline
PDF proposals, invoices, and receipts
Bilingual interface and signature workflows

Next.js · TypeScript · Supabase

05Selected product

Consumer finance · Cross-platform product

Lanes

Prototype and product demo

A calm money-management product that separates income into Bills, Spending, and Savings, then surfaces one trustworthy safe-to-spend number.

Three-lane allocation model
Payday splits and savings goals
Expo app plus clickable product demo

Expo · React Native · Supabase · Zustand

06Selected product

Native iOS · Social scheduling

When

Native iOS product build

A native iPhone app that helps groups stop negotiating schedules in chat: propose times, compare availability, vote, lock a plan, and add it to calendars.

Smart Suggest with poll fallback
Calendar, contacts, QR, and invitation flows
Local-first data with tested state rules

SwiftUI · SwiftData · EventKit · Supabase

07Selected product

Cross-platform mobile · Social product

Noir

Prototype · Backend integration planned

A dating-app prototype exploring nearby discovery, saved profiles, connections, and messaging from one shared cross-platform codebase.

Responsive web, iOS, and Android foundation
Supabase-ready authentication and data boundary
Shared TypeScript routing and component system

Expo · React Native · TypeScript · Supabase

What I build

One versatile partner. Whatever the platform.

Bring the goal or rough sketch. I'll help choose the platform and build it.

Websites & web apps

Marketing and company websites
Dashboards and web applications
Platforms and integrations

Mobile & desktop apps

iOS and Android products
Desktop experiences
Shared cross-platform systems

Original products

Product definition
Prototypes and internal tools
Full-cycle engineering

How it gets made

Built carefully, from the first measure.

Understand what's being built, why it matters, and what comes next.

01
Frame
Agree on the outcome, audience, constraints, and risks.
02
Shape
Define the product flow and a clear technical plan.
03
Build
Review working software in small steps, with tradeoffs explained.
04
Verify
Test key paths, document the system, and hand it over.

The company

Broad capability. Personal attention.

I'm Joshua Perez Leduc. At All-Purpose Apps, you work directly with the developer building your product.

Like all-purpose flour, the company adapts to the job at hand. The standard stays the same: clear decisions, dependable behavior, and work you can understand.

Risk made explicitSecurity and data tradeoffs are documented and matched to the product stage.

Built for the real flowArchitecture follows the actual product need and its constraints.

Made understandableDocumentation and explanation are part of the finished work.

React / TypeScript Next.js / Supabase SwiftUI / iOS Expo / React Native Cloudflare / D1

Available for select engagements

Bring the idea. Let's make it real.

Tell me what you want to build or improve. Let's find the clearest way forward.

Public contact detailsReady to add