// Build with us

Bring us your idea. We'll bring the other four lines.

Every project we take on is one idea and four lines of execution. You bring line one. We sketch, build, test, and ship the rest — apps, games, or the thing in between.

Send us line one → See what we've shipped

// The five lines

One is yours.
Four are ours.

01 Your idea. A sentence, a sketch on a napkin, a "wouldn't it be cool if…" — that's all line one needs to be. You don't need a spec, a deck, or a technical co-founder.

02 Sketch. In the first week we compress your idea into a five-line brief — the idea, the user, the screens, the brand, the ship date — plus a fixed quote. No surprises later.

03 Build. AI-native development with human taste. You get a working build every week and a direct line to the people making it — no account managers in between.

04 Test. Real devices, real players, real feedback. We playtest games with actual kids-who-play-Roblox energy and test apps until the edge cases give up.

05 Ship. App Store review, Roblox publishing, Steam pages, web deploys — we've done the paperwork before. We launch it, then hand you the keys and the source.

// What we build

Pick a lane.
Or don't — we drive both.

/ APPS

iOS & web apps

Focused tools, MVPs, and internal products — designed, built, and shipped to the App Store or the browser.

/ GAMES

Roblox & Steam games

Experiences, game mechanics, LiveOps content, and full titles — including TCG and card-battle systems like our own Mythics TCG.

/ SPRINTS

Prototypes & sprints

Have a hunch but no spec? A one-to-two-week sprint turns the hunch into something you can tap, play, and pitch.

// What you get

Yours to keep.

Full source code

Everything we write is yours — repo, assets, docs. No hostage situations.

Fixed quote

Priced at the sketch stage and held. Scope changes are a conversation, not an invoice ambush.

Weekly builds

A working build in your hands every week, from week one. You'll never wonder where things stand.

A real launch

Store listings, screenshots, metadata, submission — shipped, not "ready to ship."

// Questions

Asked often.

How much does a project cost?

It depends on the lane. Sprints and prototypes sit at the small end; full apps and games scale with scope. Every project gets a fixed quote at the sketch stage — before you commit to a build — so the number is never a mystery.

How fast is "weeks, not quarters"?

A prototype sprint is one to two weeks. Most apps land in four to eight weeks from sketch to store submission. Games vary more with content volume, but you'll see a playable build inside the first two weeks.

What does "AI-native" actually mean?

We build with AI tooling at every stage — design exploration, code, testing, content. That's where the speed comes from. The taste, judgment, and accountability stay human: a person reviews everything that ships, and a person answers your emails.

Do you work with non-technical founders?

That's most of the people we work with. If you can describe what you want in a sentence, we can take it from there. You never need to read a line of code (though we'll happily walk you through it if you want).

Who owns the finished product?

You do. Full source, assets, and accounts are handed over at launch. We may ask to show the work in our portfolio — you can say no.

// Line one starts here

Send us a sentence.

That's the whole ask. We'll reply with questions, a sketch, and a number.

hello@fiveline.studio → // replies within two business days