Seoul · iOS, Android and the web
We're Grapple Labs, a Seoul studio that designs, builds and releases native iOS and Android apps — and the web around them — for founders who need the whole thing done, not started.
Studio products, published under our own name as a verified organization seller.
Learners freeze when a Korean speaker talks back. Seoulvivor puts them in 126 spoken scenarios with an AI counterpart and a second model grading listening, speaking and nunchi.
Cycle apps prescribe workouts by phase; the research says they can't. Moonrun is a running calendar that pairs the cycle with training and cites its sources in the app — design validated with the runners it's for.
An iOS and Android app, in development.
Three ways to hire the studio.
01 · Launch
Product design, native iOS and/or Android, backend, store listing and the review itself.
02 · App + web
The apps plus the site, the admin dashboard and the API — built by the same hands as one product.
03 · Rescue
Half-finished, inherited, or shipped and now failing review. We read the code first and tell you honestly what it needs.
One person: the founder, who designs, writes the code and runs the store release. That is the studio's whole model — no hand-offs, and you always talk to whoever is building it.
For a focused product, usually yes — the studio takes a small number of projects at a time so each gets real capacity. If a brief needs more hands than that, we say so in the first call.
With a short, paid discovery: what the app has to do, who it's for, and what we deliberately won't build. Then a running prototype on your device before anything is committed to.
Native: Swift and SwiftUI on iOS, Kotlin and Compose on Android. It costs a little more up front and survives the next three OS releases.
Send the problem, the constraint, or the half-finished project. You'll hear back from the person who would build it.
Seoul (UTC+9) · English or Korean · Replies within two business days