Mobile app
Add yours
Your first app
Name it, say who it's for in one line, and link to the App Store or Play listing.
Slot 1 — replace with a real product
Joyfins LLC · We run our own apps & build for clients
We build mobile apps AI web applications business websites company brand identities AI search visibility app distribution strategies automated sales pipelines
Some of it we own and operate. The rest we build for a handful of clients a year — live in days, not quarters, and maintained long after launch.
Half one — Products
Apps we own and run
Mobile apps and AI web applications built, launched, and operated by us. We carry the servers, the support inbox, and the App Store rejections, which is how we know what advice is worth giving.
See what we run →
Half two — Studio
The same machine, pointed at your idea
The tooling, components, and launch checklists we built for our own products are what let us ship a client project in days instead of months. You get the shortcut, not the learning curve.
See how we work →What we run
Joyfins-owned products. We fund them ourselves, ship on our own schedule, and keep them running — no client, no committee.
AI web app
Add yours
Your AI product
What it does for someone in one sentence, plus a link to sign up or try it.
Slot 2 — replace with a real product
In development
Coming soon
What's next
A teaser for the one you're building now, with an email capture if you want early users.
Slot 3 — replace or delete
Note These three cards are placeholders — send me the real product names, one-liners, and links and I'll drop them in.
What we build for you
Client work runs on the same stack as our own products, which is the whole reason it moves this fast.
2–5 days
To your first working buildYou are paying for speed
An agency spends your first six weeks in discovery. We spend them shipping. Most projects go from kickoff call to something you can open, install, and hand to a customer inside the same week — because one person builds it end to end and nothing waits in a queue.
Ongoing
Upkeep from day oneAnd you are paying for upkeep
Shipping fast is only worth it if the thing still works in a year. Every project rolls into a flat monthly plan: OS and framework updates, store policy changes, dependency and security patches, broken integrations, and small changes as you ask for them.
Seven things, shipped fast and kept alive
Most clients start with one and add the next once it's live. Every line comes with the same monthly upkeep — nothing gets handed over and abandoned.
Mobile apps
iOS and Android products, sketch to store listing
Native SwiftUI or React Native, plus the parts nobody demos: sign-in, payments, push, offline state, and crash triage that someone actually watches after launch.
First build2–5 days to an installable build
After launchOS releases, SDK bumps, crash fixes, store resubmissions
AI web apps
AI products that do real work, not demos that impress once
Streaming chat and agent interfaces, retrieval over your own documents, tool calling wired to systems you already run, evals so quality doesn't quietly drift, and usage-based billing that matches what the models actually cost you.
First build3–5 days to a working prototype on real data
After launchModel upgrades, prompt and cost tuning, eval runs as your data changes
Business websites
Marketing sites and storefronts that load fast and get found
Next.js on Vercel, real performance budgets, structured data from the start, and a CMS your marketing person can edit on a Friday without calling us.
First build2–4 days to a live staging link
After launchContent changes, new pages, uptime and speed watched monthly
Brand identity
A name, a mark, and a system you can actually apply
Wordmark and icon, a type and color system with real contrast rules, app icons and store screenshots, social templates, and a short guideline doc written for whoever posts next — not for a design award.
First round3–5 days to directions you can pick from
After launchNew assets on request as you enter new channels
AI visibility
Getting recommended when someone asks an AI, not a search box
Buyers now ask ChatGPT, Claude, Perplexity and AI Overviews before they ever open Google. We make you legible to them: clean semantic markup, schema.org entities, an llms.txt, consistent facts across every profile that gets scraped, and the citation footprint these models actually pull from.
First pass2–3 days to implemented and indexed
After launchMonthly prompt testing across models, with what changed and why
Distribution
Getting the app in front of people, then reading the numbers
Store listing and keyword work, launch sequencing, review prompts placed where they don't annoy anyone, and small paid tests we stop early when they don't pay back — the same playbook we run on our own apps.
First pass2 days to a rewritten, tested listing
OngoingOne experiment shipped and one reported on every month
Sales pipelines
Follow-up that happens without anyone remembering
CRM wiring, lead capture and scoring, sequenced email and SMS, handoff rules, and a dashboard that shows where deals actually stall instead of where you hope they do.
First build2–4 days to a live pipeline
After launchSequence tuning once real data lands, integrations fixed when APIs move
Kickoff Monday, live by Friday
The same shape every time, whether it's an app, a brand, or a pipeline. No discovery phase, no statement of work that takes longer to write than the build.
Day 0
One call
Thirty minutes on what you want. You get a fixed price and a start date the same day — usually tomorrow.
Days 1–2
First build
Something real you can open and click. Not a mockup, not a deck — a working version, early enough that changing your mind is cheap.
Days 3–5
Your notes, then launch
One round of changes, then it goes live: deployed, submitted, or connected. Analytics verified against real sessions before we call it done.
Month 1 →
We keep it running
Flat monthly upkeep: updates, patches, broken integrations, store policy changes, and small requests. Cancel any month.
An operating company that also takes clients
Joyfins is a general LLC with two halves. One builds and runs our own mobile apps and AI web applications. The other takes on a handful of client projects a year.
Each half pays for the other. The products fund the studio and force us to live with our own decisions — every shortcut we'd sell you, we've already shipped and had to maintain. The client work keeps us in other people's problems instead of only our own.
Small is what makes the speed possible. The person who quotes your project writes the code, ships it, and answers the email eighteen months later. Nothing waits for a hand-off, because there isn't one.
Tell us what you're building
Pick what you need and send it from here — it takes about a minute. You'll get a reply the same day with a fixed price and a start date, or an honest reason we're not the right fit.
or write to hello@joyfins.com