We build apps, websites, landing pages, web systems, games and brand identity — with modern technology, fast performance and design that converts.
Technologies we master
Six areas of expertise, one partner. From the app in your pocket to the system that runs your operation.
Native and cross-platform iOS and Android apps built with Flutter and React Native — smooth performance, offline-first and published to the stores.
Company websites and landing pages that load in the blink of an eye, optimized for SEO and built to turn visitors into customers.
Custom web platforms, ERPs, admin dashboards and multi-tenant SaaS with scalable, secure architecture.
Original 2D and 3D games for mobile, web and desktop in Godot and Unity — from game design to store release.
Generative AI built into products: assistants, automations, data analysis and smart features that delight users.
UI/UX, design systems, graphics, logos and brand identity — beauty with a purpose, from prototype to finished product.
From legal SaaS and healthtech to original games and AI-powered platforms — a sample of what we have built.
You drag, it builds
Block-based website builder: the client drags blocks in, previews for free and pays once for ready-to-publish static code. Editor with eight ready-made moods, on-page text editing and GROCHA AI building the site from a conversation — or importing one the client already has.
Coming soon to the stores
Brazilian app against gambling addiction: it blocks betting sites on the phone, brings in a trusted person as guardian of the protection and talks with the user through AI right when the craving hits. Flutter, with native iOS extensions for Screen Time, Shield and PacketTunnel.
Campaign site · People’s Watchdog
Official campaign website for a state representative candidate in Rondônia, Brazil: a single, mobile-first, highly animated page telling the story of the "People's Watchdog" who took on the power company Energisa. Static Next.js with Framer Motion, published on Firebase Hosting.
New · on the App Store
The Cilada! trolling gets a new dimension: a 3D platformer in Godot set on an explorable island, with connected areas at different heights and ground you can’t trust. Same mascot, Fagulha. Now available on the App Store.
White-label mobility
White-label urban mobility platform: Flutter rider and driver apps, a multi-tenant .NET 10 backend with real-time rides over SignalR, split payments on Mercado Pago, operator dashboard, super-admin and the Studio — where a company builds its own brand with a live preview, no coding required.
485 levels · App Store and Google Play
A 2D troll platformer with 485 levels across 26 worlds, bosses, up to 4-player multiplayer and 302 unlockable skins. 100% procedural visuals and audio. Available on the App Store and Google Play.
Nationwide deadline engine
Legal SaaS that monitors Brazil's national court gazette (DJEN) across every court, calculates deadlines automatically and alerts the lawyer. Nationwide deadline engine, plus AI-written summaries and drafts.
AI patient in OSCE stations
Prep platform for Revalida, Brazil's medical license exam for foreign-trained doctors: adaptive question bank with 533 official questions, and OSCE stations with an AI patient, plus AI-generated reports and images.
Native Brazilian tax + operational AI
Complete multi-tenant ERP for the Brazilian market: sales, inventory with stock ledger and average cost, invoicing with NF-e and native Brazilian tax handling. Same enterprise stack as Tempestivo and RevaMed, in Clean Architecture.
Website + accounting SaaS dashboard
Platform for Rocha Contabilidade & Consultoria: company website plus a multi-tenant accounting dashboard (white-label SaaS). Company registration, tax and payroll 100% online, with human support.
AI that does the accounting work
Accounting with AI in a single system: tax, bookkeeping, payroll and corporate records, all integrated. The AI audits payroll, reconciles bank statements and drafts tax-audit defenses — no data silos, no rework.
Virtual 3D try-on
Customizable 3D fashion platform: the customer uploads a photo, adjusts the garment in an AI-powered preview and gets it delivered at home. Virtual try-on and real-time rendering.
Its own journey AI
Dark-first gamified fitness app with its own AI (EVO): workouts, journey, XP, achievements and personalized insights. NestJS backend, Flutter app and an AI layer.
Real-time agile voting
Real-time Planning Poker for agile teams: create a room, everyone votes on story points and the cards flip together. No sign-up, live emoji reactions and a Pro plan with timer, custom decks and history.
Neural AI narration
Bilingual educational app for kids with 7 themed islands, neural-voice narration, age-based modes, zero ads and 100% offline.
Full telemedicine
Healthtech with telemedicine, 24/7 urgent care, an online pharmacy and payments. Modular Flutter architecture with Clean Architecture and a white-label Design System.
Banking scale
E-commerce built into the Bradesco banking app, with thousands of deals from the country's biggest stores, cashback and exclusive coupons for customers.
Full digital account
Complete banking app with a digital account, payments, transfers and investments. Modern, intuitive interface.
Institutional PWA
Professional website for a therapist with a modern, responsive design, a complete PWA experience and flawless performance.
Website + blog + dashboard
Website, blog and content dashboard for a criminal defense lawyer in Porto Velho, Brazil. Focused on local SEO and lead generation: criminal defense, habeas corpus, custody hearings and jury trials, with 24/7 support.
Transparency at every step. You always know where the project stands and where it is heading.
We learn your goals, your audience and what sets you apart. Scope, timeline and the right technical approach are agreed before a single line of code is written.
We prototype the experience in Figma, with UI/UX that delights and guides people all the way to conversion. You sign off on every screen before development starts.
We build with clean code, scalable architecture and continuous delivery. You follow the progress in real environments, sprint by sprint.
We ship, monitor and support. Your product goes live — fast, secure and ready to grow with your business.
The questions that come up in every first conversation, answered straight.
G R Tecnologia (brand name GROCHA Tech) builds custom software: mobile apps, websites and landing pages, web systems and SaaS, games, applied artificial intelligence and brand identity. It is based in Santa Bárbara D'Oeste, São Paulo, Brazil, works remotely and has been in business since 2020.
It depends on the scope, and each quote is put together case by case after a short conversation about what the system needs to do. There is a fixed-price option for simple websites: GR Builder, our block-based site builder, delivers a landing page for R$ 149.90 and a full website for R$ 259.90 (Brazilian reais), as a one-time payment, with the source code ready to download.
Yes. The work is remote and has already been delivered to clients in several Brazilian states. Meetings happen over video calls and the project is followed up by WhatsApp and email, with partial deliveries so you can watch the product take shape before the end.
A landing page is ready in days; an app or system usually takes from a few weeks to a few months, depending on its size. The timeline is agreed before work begins, along with what goes into each stage — and you get working versions along the way instead of waiting until the end to see anything.
Yes. The source code of what you hire us to build is handed over to you, with no license fee or subscription to keep using it. For projects made with GR Builder, you download a static package with HTML, CSS, JavaScript and images that can be published on any hosting provider.
We can, but it is not included by default. Hosting and domain registration are contracted separately, and you can keep everything in your company’s name — that way you stay in control of what is yours and never depend on us to switch providers one day.
Yes, when it solves a real business problem: customer-service triage, document reading, content generation and assistants that carry out tasks inside the system. Several of our own products already run AI in production, including Tempestivo (legal), RevaMed (healthcare) and GR Contábil (accounting).
Tell us in a couple of lines what you need, through the form on this page or on WhatsApp at +55 19 98847-2424. The reply comes with the next step and an estimated timeline, with no commitment and no cost to talk.
From your dream app to the system that will scale your business — G R Tecnologia takes it from concept to launch.
Tell us what you need. We reply quickly, with a clear plan for your project — no strings attached.
