Scheduling
Web
Online scheduling built by CSS Carvalho: the client picks the service, day and time, all on the web.
Software studio
We build software that stays standing.
TwoTrees is a software studio. We build and publish our own apps and systems, from the first sketch to what runs in production, with care on every deploy.
What TwoTrees does
We build our own apps and systems and run them ourselves — on mobile and on the web. Everything under the TwoTrees name is made and published by the same team.
The process is the same across all of it: understand the real problem, build the smallest thing that solves it, and look after it once it's in production.
Close to the code
The person who designs the screen also writes the backend. No broken telephone between deciding and building.
Built to last
Deploys with rollback, monitoring and tests. What ships stays up, and we get to sleep.
No fluff
The tool solves the problem and gets out of the way. No features nobody asked for.
Apps & systems
The apps and systems CSS Carvalho Desenvolvimento Digital LTDA builds and publishes under the TwoTrees name.
7peasy
iOSAndroidWeb
iOS and Android apps for people working offshore: the paperwork and the rotation, like EOTR and CAAP.
7peasy.twotrees.tech
(opens in a new tab)Finance
Web
Bills to pay on a due-date calendar, payment by Pix, and OCR that reads and files your receipts on its own.
finances.twotrees.tech
(opens in a new tab)VPS Manager
AndroidWeb
A home for your servers and infrastructure, with a built-in AI terminal, deploys and monitoring.
vpsmanager.twotrees.tech
(opens in a new tab)Screens
Web
A map of an app's screens and flows, with QA each release: UX findings and a Jira ticket pinned to the cropped screen.
screens.twotrees.tech
(opens in a new tab)Lab
WebAndroid
The lab where systems are born and tested before they reach production.
lab.twotrees.tech
(opens in a new tab)Company
TwoTrees is a brand. The company that builds, publishes and operates everything here is:
CSS Carvalho Desenvolvimento Digital LTDA
CSS Carvalho Desenvolvimento Digital LTDA is a Brazilian software studio. We build and publish our own apps and systems — for iOS, Android and the web — under the TwoTrees name. This domain, twotrees.tech, is operated by the company.
Company details
- CNPJ (Brazilian company registration)
- 25.176.628/0001-73
- NIRE (trade board registration)
- 33.8.0915686-2
- Legal form
- Single-member limited liability company (Sociedade Limitada Unipessoal)
- Registered office
- Rodovia Amaral Peixoto, 4931, sala 201 — área 01, Centro, Rio das Ostras/RJ — CEP 28893-076
- Legal representative
- Cheyenne Simoes Santos Carvalho
- Established
- 2016
Got a problem to solve?
Tell us what you need. If it's something we can build well, we'll answer with a path, not a generic quote.