Currently shipping: Keystone beta

Useful software, shipped without nonsense.

VinTEK Solutions is a small studio building cross-platform apps for the people who actually need them. Six in the lineup. Zero we'd be embarrassed to show our mothers.

The lineup

Six apps. One studio.

Each one started as a complaint we couldn't outsource. They share a stack and a stance: built carefully, shipped quickly, priced honestly.

How we build

One codebase. Two platforms. Zero excuses.

The stack is opinionated for a reason. Each piece is chosen because it lets one person ship like a team.

Kotlin Multiplatform

One codebase ships Android and iOS — and Chromebook, where SongBook needs it. No "we'll get to iOS later."

📦

Offline-first by default

SQLDelight + Ktor + Coil. Apps stay useful on a plane, at the cabin, or two bars of LTE.

🧠

AI where it earns its keep

Gemini, Imagen, Claude — used in the workflow, never as marketing decoration. We pay for tokens; you don't pay for hype.

💳

Honest monetization

RevenueCat for in-app subs, Stripe for direct invoicing. Free tiers that actually work. No dark patterns.

Beliefs

Five things we run on.

If you'd disagree with all five, our apps probably aren't for you. We're okay with that.

“If a free tier feels like a trap, you've already failed.”
“Mocktails are first-class drinks. Always.”
“Cross-platform isn't a compromise. Done right, it's a multiplier.”
“If it doesn't work offline, it doesn't really work.”
“Subscriptions should buy you power, not pacify your guilt.”
Now

What's on the workbench.

This week → ASVAB Prep live on the App Store.

ASVAB Prep is now live on the App Store — every branch, every job, every composite. Like TendaBar and Smoke Chamber, it ships for iPhone & iPad now, with its Android build in closed beta. SongBook ships from one Compose Multiplatform codebase and is live on both stores (Android including Chromebook via ARC++).

Coming up: Keystone architecture foundations and its first production release.

Got a problem worth solving?

Drop feedback on an app you're testing, pitch an app idea you want built, or just say hi. We read every message.

Or email vintek615@gmail.com directly.