01 / Won't scale
The spreadsheet won't scale
What ran fine at 20 clients buckles at 200 — and the one person who "just knows how it works" becomes the bottleneck your whole operation waits on.
App Development · iOS · Android · Web
Your app idea's been
Your app idea's been
someday for a year.
We ship it — in
weeks, not years.
Gamma Tech Group is an Atlanta studio that builds custom mobile and web apps for founders and growing businesses — a real MVP in weeks, iOS, Android, and web from one codebase, AI built in, and you own every line.
30 minutes·No obligation·You keep the game plan
8–16 wk
To a real MVP in users' hands
100%
You own the code & IP
1 codebase
iOS, Android & web together
iOS + Android
one codebase, one team
✓ Live
shipped to the App Store
9:41
Your app · liveGood morning
Bookings this week
128
Recent activity
We build with the tools that ship and scale
Swift
Kotlin
React Native
Flutter
React
Node
Supabase
Firebase
Custom Code
The Manual Tax
Every workaround is a decision to keep
paying people for what software should do.
If your business runs on spreadsheets, PDFs, and "let me get back to you," the bill compounds every single day.
02 / Friction
Customers hate the process
PDFs, email chains, and "let me check and get back to you." Every point of friction is a place a customer can quietly leave for someone easier to work with.
03 / Burned
The last build burned you
The agency overbuilt and overcharged, or the offshore team went dark — leaving a codebase no one can read and a product that never quite shipped.
Ship in weeks
Own the code
iOS + Android + web
AI built in
Launched, not stuck
Ship in weeks
Own the code
iOS + Android + web
AI built in
Launched, not stuck
How We Build
Most apps die in scope.
Ours are built to ship.
The difference between a launched app and a nine-month "almost done" is discipline. Four things keep our builds moving.
01 / MVP first
A real MVP first
We build the smallest version that delivers real value, ship it to users fast, and let their behavior — not a wishlist — decide what gets built next.
02 / Cross-platform
One codebase, every platform
iOS, Android, and web from a single codebase, so a fix or feature lands everywhere at once instead of costing you three separate builds.
03 / AI inside
AI & automation inside
The assistant, smart search, or automation your product needs, engineered in from the first line — not bolted on later as a "phase two."
04 / Launched
Launched, not handed off
App Store and Play Store submission, review, and resubmits are our job. Shipping to real users is the deliverable — not your problem to figure out.
What We Build
Six things we build.
Each one earns its keep.
We start with the one that moves your business, ship a real first version fast, and expand from there. A few of the apps we build most:
Customer Mobile App
Your business in your customer's pocket — an iOS and Android experience they'll actually open twice, not delete after one use.
→ a booking, loyalty, or service app that lives on their home screen.
Internal Ops Tool & Dashboard
Retire the fragile master spreadsheet and give your team one place the work actually lives — with the numbers you run on, up to date.
→ dashboards, approvals, and job tracking your team runs the day on.
Customer / Client Portal
Let clients book, pay, track, and self-serve — so your inbox stops being the interface and your team stops answering the same questions.
→ logins, scheduling, payments, and status — self-serve, 24/7.
SaaS Product / MVP
Get a real product in front of paying users in weeks — real backend, real data — and let their behavior tell you what to build next.
→ auth, billing, and a backend that scales past the demo.
Marketplace / Booking Platform
Connect two sides and take your cut, on infrastructure that holds up when the volume actually arrives instead of buckling at launch.
→ two-sided listings, matching, and payments that scale.
AI Features in an Existing App
Add the assistant, smart search, or automation your product is missing — layered into what you already have, without a full rebuild.
→ an AI assistant or automation inside the app you already run.
Built for
Startups & founders
Home services & trades
Fitness & wellness
Real estate
Professional services
…and whatever you're building
The Difference
Built to ship and scale.
Cheap and fast usually means unfinished and unowned. Here's how a Gamma build is different from the two options most people try first.
| A Gamma Build | An offshore shop | A no-code tool | |
|---|---|---|---|
| A real MVP, shipped to users fast | ✓ | Eventuallyif at all | Limitedprototype |
| One accountable senior team | ✓ | ✕time zones | ✕it's you |
| You own the code & IP | ✓ | Murky | ✕no export |
| A real backend that scales | ✓ | Maybe | ✕hits a wall |
| App Store & Play launch handled | ✓ | Sometimes | ✕you DIY it |
| AI & automation built in | ✓ | ✕ | Add-onsextra fees |
The Path
From idea to the store,
in four steps.
01
Day 0 · Free
Discover
A focused 30-minute evaluation. We pressure-test your idea and tell you honestly whether custom, no-code, or "not yet" is the right call.
02
Weeks 1–2
Scope & design
We define the smallest valuable first version, design the flows, and lock a fixed scope, timeline, and price — no runaway wishlist.
03
Weeks 3–12
Build in sprints
We build in visible sprints — real, running software you can use every couple of weeks, with a real backend and AI built in.
04
Go-live →
Launch & support
We ship it to the App Store and Play Store, hand you the code and accounts, and stay on for updates and new features.
The Payoff
Shipped. In the store.
Yours.
Not a nine-month reveal or a prototype that dies on a laptop. A real product in real users' hands.
8–16wk
From kickoff to a real MVP in your users' hands — not a year-long agency reveal.
100%
Yours — the code, the IP, the repo, and the accounts. From day one, in writing.
1 codebase
iOS, Android, and web move together — one fix or feature lands everywhere at once.
Proof
Real Atlanta businesses.
Real apps, in real use.
These aren't mockups. Apps we've designed, built, and shipped for real businesses — the ones their teams and customers open every day.
OU
Fitness Program Agency
Olympic United
A custom fitness app built to run and deliver their programs — the product members actually open, not a brochure site.
"Gamma Tech Group engineered our sales automation and fitness app from the ground up, and it completely transformed how we enroll and retain members."
— Deivi B., Owner
MJB
Remodeling Company
MJB Pro Painters
Web and mobile apps that carry estimates, approvals, and job updates through one system — so nothing lives in a text thread anymore.
"Since Gamma Tech Group rebuilt our workflows, estimates, approvals, and updates all run through one automated system — no more lost messages or missed steps."
— Emmanuel G., Owner
RC
Construction Company
Rocco's Contracting
Web and mobile apps built around their construction sales pipeline — capturing leads and moving projects instead of chasing them.
"Gamma Tech Group modernized our sales pipeline with automation and apps that help us capture more leads and close projects faster."
— Anthony C., Owner
More client work in progress — logos and quotes added as clients approve them.
Let's scope your app
— free.
Book a free 30-minute evaluation. We'll pressure-test your idea, tell you honestly whether custom, no-code, or "not yet" fits, and map the first build — with a real scope and timeline. Yours to keep either way.
- 30 focused minutes, on Zoom — no prep, no slides
- Leave with a scoped first build and an honest timeline
- We'll tell you if you don't need us — no hard sell
You own the code & IP·We only build what earns its place·We reply within 1 business day
"Gamma Tech Group engineered our sales automation and fitness app from the ground up, and it completely transformed how we enroll and retain members."— Deivi B., Owner · Olympic United
Frequently Asked
Questions, answered.
How much does it cost to build a custom app? +
It depends on scope, but most small-to-mid-business apps land in the $50K to $120K range industry-wide, and a lean MVP costs a fraction of a full build. We scope to the smallest version that delivers real value, price it transparently after your evaluation, and never pad it with features you don't need yet.
How long does it take to develop an app? +
A realistic MVP is 8 to 16 weeks, not a year. The thing that blows up timelines is scope creep, so we fix scope up front and ship in visible sprints. You'll have running software in your hands early, not a big reveal at the end.
Do you build for both iOS and Android? +
Yes — plus web, from a single codebase. That means one build instead of three, and fixes and features that land on every platform at once instead of costing you triple.
Do I own the code and the intellectual property? +
Completely, in writing — the code, repository, designs, and accounts, yours from day one. You're never renting your product and never locked to us to keep it running.
Do you handle App Store and Google Play submission? +
Yes. Store submission, review guidelines, rejections, and resubmits are our job. We take it through to live and downloadable — launch is part of the deliverable, not something we hand back to you.
Can we start with an MVP instead of the full build? +
That's usually the smart move. We build a real MVP with a real backend and real data, get it in front of users, and let their behavior guide what we build next. You don't need to raise money first to start; you need a clear first version.
Who maintains and updates the app after launch? +
We offer ongoing support and iteration — OS updates, store policy changes, bug fixes, and new features. And because you own everything, you're free to keep it in-house or take it elsewhere. The choice stays yours.
Why custom instead of no-code like Bubble or FlutterFlow? +
No-code is great for a quick prototype, and we'll say so when it fits. But teams hit real walls: performance issues at scale, no code export so you're locked to the platform, and rising subscription costs. If you're building something you intend to grow and own, custom is what actually scales — and it's genuinely yours.
Your best version isn't a spreadsheet.
Let's build the real thing.
Get My Free App Evaluation →
30 minutes·No obligation·You keep the game plan