We fix broken apps

The companion app dragging down your hardware. The consumer app people stopped opening. We find the exact failures, cite them, and ship the fixes.

Get a free auditStart a project

The audit is free. We put your app through real use and pinpoint what's failing. No commitment.

What we do
Rescue

App rescue

Broken, buggy, or abandoned apps rebuilt into ones people rely on. Crash and freeze fixes, hardware and Bluetooth connectivity, performance, the reliability bugs quietly bleeding your reviews.

Audit

Reliability audit

We find what's actually breaking your app and rank it by impact, no repo needed. Want it at the code level? Share repo access and we go file by file. Usually the first thing we do, and it's free.

We also build from scratch

Mobile
iOS and Android via React Native: one codebase, native performance.
Web
Full-stack Next.js and TypeScript. Fast, typed, deployed on Vercel.
AI integration
Claude, GPT, Gemini. Streaming, cost control, caching.

How we work

From broken build to shipped fixes

A clear four-step process. You always know where your app stands and what happens next. No black box, no surprises.

01

Audit

We put your app through real use and cite exactly what's breaking, ranked by impact. It's free.

02

Plan

The findings become one fixed-fee number and a clear order of attack, reliability bugs first.

03

Fix

We work in your repo and your infrastructure, shipping the crash, freeze, connectivity, and performance fixes.

04

Ship

We deploy to your stores and hosting, then verify the failures are gone in the live app, not just on our machine.

Selected work
ArtCopy mobile feed showing a watercolor street scene by @sketchyfish7

ArtCopy

Lead developer · Mobile + Web · 2026

A realtime multiplayer drawing game on a native canvas. The hard part was never the features, it was making it not lag, crash, or desync mid-game.

What we fixed

  • Re-architected the drawing engine from vector paths to a raster bitmap layer, killing the lag and crashes that set in as canvases filled up
  • Rebuilt the realtime multiplayer queue so shared, swapping canvases stay in sync across players mid-game
  • Killed the duplicate posts in the infinite-scroll feed by de-duping the overlapping items that cursor-based pagination returned

Also built

  • AI moderation with OpenAI Vision + Anthropic: auto-takedown and creator notification
  • TikTok-style video feed with a native autoplay pipeline and gesture controls

React Native · Expo · Next.js · Supabase · Skia · TypeScript

artcopy.app ↗
AceStudy dashboard showing the Mastery Web concept map and curriculum progress

AceStudy

Reliability engineer · Web · 2025–2026

An AI study app we joined after the initial build, brought on to fix what kept breaking and get it stable enough to charge real students, from the AI pipeline to billing.

What we fixed

  • Fixed the guest-to-account flow that was dropping users' work on sign-up (sessionStorage → Firestore migration)
  • Rebuilt the D3 concept-map so it stopped freezing on large maps, using pre-computed force-simulation layouts
  • Fixed subscription and billing bugs across the Stripe weekly / monthly / yearly tiers

React · TypeScript · Firebase · Gemini · Stripe · D3.js

acestudy.app ↗
Contact

Send us the app that's letting your product down.

Get a free auditStart a project
andrew@aenyx.ca

Reply within one business day.