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gammaLabz

Software built with precision and shipped with care.

A small independent team building mobile and web apps, admin and member panels, backends, and integrations — from eSIM products where users pay in-app to AI services that process content for your users.

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Process phases
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Stack tools
See published builds

What we do

Studio,work,stack&process

A small independent development team — not an agency. We work directly with you on a focused set of projects at a time.

Small team, deep focus

MP
Mobile & product

Expo, React Native, product engineering

Native-feeling apps with offline support, in-app payments, and release workflows — from prototype to App Store and Google Play.
ExpoReact NativeProduct engineering
BP
Backend & platform

APIs, data, and release infrastructure

FastAPI and Firebase/Supabase backends, admin and member panels, Stripe and RevenueCat integrations, automated testing, and CI — so shipping stays predictable.
FastAPIFirebaseCI/CD
Mobile Applications
Apps that feel native on iPhone and Android — with offline support and smooth interactions — built with Expo and React Native.
ExpoReact NativeTypeScript
eSIM & Payments
Connectivity products where users can buy plans and pay in-app — Firebase/Supabase backends, Stripe billing, and RevenueCat subscriptions wired end to end.
FirebaseStripeRevenueCat
Admin & member panels
Private dashboards beside the product — an operator view for the business, and a member or partner view that only shows that account's sales, access, and payouts.
RolesReactFirebase
AI & RAG Backends
Server-side intelligence — content analysis, LangChain pipelines, and search over your data — so your app can answer questions or process content reliably.
FastAPILangChainPython
Testing & CI
Automated tests and release pipelines that catch problems before users do — so shipping stays predictable instead of stressful.
PytestDetoxGitHub Actions
ExpoExpo
React NativeReact Native
Next.jsNext.js
TypeScriptTypeScript
FirebaseFirebase
SupabaseSupabase
FastAPIFastAPI
PythonPython
PostgreSQLPostgreSQL
StripeStripe
RevenueCatRevenueCat
LangChainLangChain
DockerDocker
GitHub ActionsGitHub Actions
ExpoExpo
React NativeReact Native
Next.jsNext.js
TypeScriptTypeScript
FirebaseFirebase
SupabaseSupabase
FastAPIFastAPI
PythonPython
PostgreSQLPostgreSQL
StripeStripe
RevenueCatRevenueCat
LangChainLangChain
DockerDocker
GitHub ActionsGitHub Actions

Tools we reach for when reliability, speed, and long-term maintainability all need to coexist — from mobile frameworks to payment providers and CI.

ExpoReact NativeNext.jsTypeScriptFirebaseSupabaseFastAPIPythonPostgreSQLStripeRevenueCatLangChainDockerGitHub Actions
01
Audit
Map requirements, constraints, and risks before writing code — so everyone agrees on scope and what success looks like.
02
Build
Ship in focused iterations with clean interfaces and typed contracts — so the codebase stays understandable as it grows.
03
Test
Cover critical paths with automated tests in CI — so changes are checked before they reach users.
04
Ship
Deploy, monitor, and document — so you can maintain and extend the product after launch.

Shipped products

Liveonstores—andshippingnext

Spin the 3D carousel through our mobile apps on the App Store and Google Play, plus web products in production — and what's coming soon.

Mobile apps

Screenshot of Earlo on iPhone
Earlo icon
Earlo
On-device hearing screening with a short survey and tone test, then a private report that stays on your phone — no account required.
Coming soon on theApp StoreGet it onGoogle Play
Screenshot of Paranormalia on iPhone
Paranormalia icon
Paranormalia
Coming soon
Live field sessions from phone sensors — activity ring, session timeline, and atmospheric reports. Built for entertainment, with results that stay yours.
Coming soon on theApp StoreComing soon onGoogle Play

Web products

aeo — AI Visibility Growth System

When AI picks a winner, make it you. Grow your AI visibility with measurable results.

tryaeo.com

TryAEO icon
TryAEO
Web app
AI visibility SaaS that crawls your site, scores how well you show up in AI search, and delivers a free report by email.
Next.jsSupabaseLangChainInngestApify
Visit site

Other builds

Backend and platform work

Selected projects without a public product page — APIs, admin and member panels, AI systems, and reliability work published with client permission. Open a card for the full case story.

MyEsim Admin & Partner panels

Two logins on a live eSIM product — operators run the program, partners see only their own numbers.

ReactFirebaseRole-based accessCommissions

AI detection backend

Media analysis API in production — one intake path for client apps.

FastAPIPythonMedia handling

Support AI RAG

Docs-grounded support assistant — retrieval first, then the answer.

LangChainPineconeOpenAI

Production testing & CI

Billing-safe releases — automated gates instead of manual smoke tests.

GitHub ActionsUnit testsIntegration tests

Client words

Whatteamssayaftershipping

Direct feedback from projects like the ones in our case notes. Quotes reflect the project at the time of delivery and are published with client permission.

“gammaLabz are responsive and I've never waited more than 24 hours for a reply. Fair pricing for what you get, and they've upgraded MyEsim GR enormously since I started working with them.”

Dimitris D.

Founder · MyEsim GR

“I started with nothing — no app, no store listing. About a month later the app was live on iPhone and Android, taking payments, and people were actually using it. I didn't think that was possible on my timeline.”

John R.

Founder · Guinea Pig Translator

“We had the vision for tryaeo.com but not the bandwidth to build it right. They turned it into a real product our customers rely on — not something we have to babysit every week.”

AI Agency

Co-founders · AI Agency

“gammaLabz are responsive and I've never waited more than 24 hours for a reply. Fair pricing for what you get, and they've upgraded MyEsim GR enormously since I started working with them.”

“I started with nothing — no app, no store listing. About a month later the app was live on iPhone and Android, taking payments, and people were actually using it. I didn't think that was possible on my timeline.”

“We had the vision for tryaeo.com but not the bandwidth to build it right. They turned it into a real product our customers rely on — not something we have to babysit every week.”

“gammaLabz are responsive and I've never waited more than 24 hours for a reply. Fair pricing for what you get, and they've upgraded MyEsim GR enormously since I started working with them.”

“I started with nothing — no app, no store listing. About a month later the app was live on iPhone and Android, taking payments, and people were actually using it. I didn't think that was possible on my timeline.”

“We had the vision for tryaeo.com but not the bandwidth to build it right. They turned it into a real product our customers rely on — not something we have to babysit every week.”

Interface

Admit one

TrackGL

gammaLabz

  • precision
  • rigor
  • clarity
Studio
Independent
Scope
Mobile · API · AI
Based
EU timezone

The surface is part of the product.

How we think

Codethatreadslikeintent,notaccident.

We favor explicit types, small modules, and pipelines you can trace from the app screen to the database — so behavior is intentional, not accidental. The terminal below is a quick sketch of that mindset.

✓ Mapped Firebase + Stripe integration points
✓ Identified 3 critical user flows for E2E coverage
→ Tests passed · CI green · Deployed
Ready._

FAQ

Commonquestions

Direct answers about who we are, what we build, and how to get in touch.

Before you write

Thisisenoughtostart.

You do not need a spec deck or a full brief. A short note like the one on the right is enough for us to tell you if there is a fit.

New message
ExampleSend
To
contactus@gammalabz.com
Subject
MVP for field teams — Q3 timeline
Body

Building a mobile app for technicians who need offline access in the field.Need app screens, backend, and in-app subscriptions.I can decide on scope — hoping to ship a first version in Q3.

Contact

Telluswhatyou'rebuilding

You do not need a technical spec. Share the idea, who it is for, and your timeline — we will reply with next steps.

2–3 lines is enough to get started. We usually reply within 1–2 business days.