We build software products
from idea to launch.
We design, build, and launch useful software products: mobile apps, web platforms, AI tools, SaaS products, and open-source developer tools.
Products we have built
A simple list of shipped products, experiments, SaaS apps, and mobile apps from Quassum.
WidgetAI
Available on App Store
Build any iPhone widget, just by asking.
Phosa
Native macOS photo editing, built for your Photos library.
SpecSource.ai
Turn Sentry errors into researched, ready-to-fix bug specs.
JustScribe
Available on Mac App Store
Private, real-time transcription that runs entirely on your Mac.
Pluck
Copy any component from any website.
CompetiTaurus
100+ customers
Know when competitors change pricing, features, or positioning.
FutureBase.io
500+ users
AI customer support for small teams, live in five minutes.
StickerCombo.gg
Spell any word with Counter-Strike 2 stickers.
VSKS Keyboard
Available on App Store
Lithuanian letters, right where they belong on your keyboard.
SwiftUI Generator for Figma
Turn Figma vector shapes into SwiftUI code.
StickerHunt.io
Active community
Find hidden stickers and turn your city into a treasure hunt.
Cute Paper Stickers
A playful sticker pack for messages that need a little joy.
Rythmic
10,000+ users
A minimalist metronome and tuner for focused practice.
Ant Colony Stickers
Hard-working ants with a reaction for every conversation.
Product development, end to end
We usually work across the full product loop: shaping the idea, designing the interface, building the software, launching it, and improving it after real users touch it.
Web products
Web apps, landing pages, dashboards, and full-stack platforms.
Mobile apps
Native-quality iOS, Android, and macOS apps from idea to store release.
AI features
AI workflows, agents, automation, and product features that are useful in practice.
SaaS builds
SaaS products, internal tools, billing, auth, analytics, and integrations.
Small process, real product
We keep the process compact so most of the energy goes into making the product better.
Share your vision
Tell us what you're trying to achieve. A conversation, not a 40-page spec. We'll scope it and give you a fixed price within 48 hours.
See it working
Within a week, you'll have a working demo in your hands. Not a mockup. Not a slide deck. A real, clickable product you can show your team.
Ship and scale
We refine, polish, and ship to your users. You pay for the result we agreed on, not for the hours it took us to get there.
Built in the open
Libraries, experiments, and useful tools we share with the community. Open source is how we learn in public and give back.
SVG to SwiftUI Converter
Turn SVG paths into reusable SwiftUI Shape code in the browser instead of translating every drawing command by hand.
Squircle.JS
Render smooth, responsive squircle shapes in React, Svelte, or vanilla JavaScript with a small open-source library.
ml-sharp-web
A browser-based playground for Apple's SHARP model that generates, previews, and exports 3D Gaussian splats locally.
Web3 Icons for SwiftUI
A type-safe Swift package of crypto tokens, networks, wallets, and exchanges rendered as native SwiftUI shapes.
Lucide Icons for SwiftUI
A type-safe, dependency-free Swift package that brings the complete Lucide icon set to iOS and macOS.
Beautiful Mermaid Playground
A browser playground with live Mermaid rendering, SVG and ASCII modes, themes, copying, and downloads.
Build a product with us
Tell us what you want to make. We will help shape it, build it, and get it in front of users.
Most projects start delivering within 5 business days.