Credentials
What we can demonstrate rather than what we can claim: published apps you can install, platform standing you can verify, and the compliance practices we apply to every project.
How to read this page
Everything on this page is meant to be checked rather than taken on trust: certificates issued by third parties, software you can install from public stores, and platform accounts in good standing. We hold ISO/IEC 27001 and CCNA; we do not hold SOC 2. If a procurement process requires a certification we do not have, we will tell you straight away.
Published and verifiable
The most direct evidence of what we do is software you can install right now.
Mais Gestão — live on Google Play
A personal finance app built end to end: Flutter client, Supabase backend, cloud sync, in-app account deletion and a passing Data Safety declaration. Published and updated by us.
Two further apps in development
Bíblia — Estude Mais, an offline Bible reader with 31,102 verses bundled on device, and Aprova Cartões, an on-device credit card recommender that stores nothing and sends nothing.
Public compliance documents
Privacy policies, terms of use and account deletion pages published for every app we ship, kept in step with what the software actually does.
Platform standing
Accounts and processes we operate directly, including the parts that are easy to get wrong.
Google Play Console
Signed release management, staged rollouts, Data Safety declarations, content rating questionnaires and the account deletion policy — handled and kept current, not outsourced.
App Store Connect
App Privacy details, TestFlight distribution and review submissions for iOS builds.
Cloud and hosting
Vercel, Supabase and Firebase projects provisioned in the client own organisation wherever possible, so access never depends on us remaining involved.
Certifications and compliance
Formal credentials issued by third parties, and the law our products are built to comply with. Certificates available on request.
LGPD (Lei 13.709/2018)
Data mapping, stated legal bases, subject rights flows and deletion routes built into products that handle personal data.
ISO/IEC 27001
Information security management certified against the standard. Scope statement and the current certificate sent on request.
Cisco CCNA
Cisco Certified Network Associate held in house — routing and switching, IP services and network security fundamentals. Verifiable directly with Cisco.
The people
Small on purpose. You will know who is working on your project.
- Led by Sidney da Silva, who writes production code across Flutter, TypeScript and Node.js and has taken apps from first commit through store approval.
- Work is staffed by the people doing it, not routed through account management. When a project needs a specialist we do not have, we say so and help you find one.
- Public work is on GitHub and LinkedIn — both linked from every page of this site.
What we can send you
- A capability statement for a specific project type, with comparable work described in detail.
- References from previous clients, with their permission.
- A written technical assessment of an existing codebase before any commitment on either side.
- Answers to a security or procurement questionnaire, including the questions where the honest answer is no.