Insights
How we build — engineering insights
Opinionated articles on how HyperCode builds mobile and web products: the stacks we default to, the practices we insist on, and the reasoning behind both.
Mobile · Strategy
Flutter, React Native, or Native? How We Actually Choose
We ship apps with all four stacks — Swift, Kotlin, Flutter, and React Native — so we have no framework to defend. This is the decision process we walk through with every client, including the questions that matter more than the technology.
Read the articleAI · Engineering
Taking Over an AI-Built Codebase: Our Assessment Checklist
More and more founders arrive with an app they built themselves with AI assistance — working, demoed, even earning users — that has stopped being extendable. Here's how we assess what they bring, decide what survives, and turn it into a product without throwing away what they learned.
Read the articleFlutter · State Management
Why We Use Riverpod for State Management in Flutter Apps
Every Flutter project has to answer the state management question. After shipping production apps with several approaches, Riverpod became our default — here's the reasoning, including where it isn't the right answer.
Read the articleAI · Architecture
LLM Features in Production: What Survives Contact With Real Users
An impressive LLM demo takes an afternoon. An LLM feature that behaves well for real users — with real latency, real costs, and real failure modes — is an engineering project. Here's what we've learned shipping AI features in our own products and client work.
Read the articleWeb · Architecture
Why Firebase + Next.js + Vercel Is Our Default Stack for Admin Apps
Almost every mobile product we build eventually needs a back-office: an admin dashboard where the client manages users, content, and data. For those, we reach for the same stack every time — and the reasoning is mostly about what we don't have to build.
Read the articleMobile · Architecture
Offline-First: When the Phone Is the Office
Two of the products we've shipped — Snacker and Invoice Guru — treat the local device, not the cloud, as the source of truth. That's not a limitation we accepted; it's an architecture we chose. Here's when offline-first is the right call and what it changes.
Read the articleQuality · Testing
Unit Tests Pay for Themselves — and UI Tests Belong on Real Devices
Testing is routinely the first thing cut from a mobile budget, because its value is invisible until the day it isn't. Here's how we think about the testing pyramid in practice — from unit tests on business logic to Appium-automated UI tests running on a device farm.
Read the articleProcess · Collaboration
A Written Spec for Every Feature — Because Minds Change Mid-Build
The most expensive moment in client development isn't a bug. It's a requirement changing inside half-built code. Our answer is unglamorous and works: no feature starts without a short written specification the client has signed off.
Read the articleMobile · Release
Shipping to Both App Stores Without Drama
Writing the app is half the job. Getting it into the App Store and Google Play — and keeping releases boring, frequent, and reversible — is a discipline of its own. Here's the release practice we run across our products and client apps.
Read the articleMobile · Monetization
In-App Subscriptions Without the Pain
Subscriptions look like a solved problem — both stores provide APIs, how hard can it be? Harder than any other 'standard' mobile feature, it turns out. Here's how we implement subscriptions in apps like Invoice Guru, and why we stopped building this layer by hand.
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