Websites & Landing Pages
Fast, modern sites (Astro) with a professional presence, flawless on phones and structured to be found on Google. This site scores 100/100 on Lighthouse accessibility, SEO and best practices (mobile).
Web, apps, databases and Power BI analytics
Cristian Bravo
Mobile & Full-Stack Developer
Websites, apps, databases and Power BI dashboards tailored to businesses, from the initial idea to go-live. 16 original products built end to end. Available for freelance projects and contract work.
Available for new projects
Services
Websites, apps, databases and data analysis for businesses
Ideas waiting to happen, spreadsheets that outgrew Excel, data nobody has analysed, or a website a business needs: the project is taken from concept to launch and kept running.
Mobile Apps
Native-quality Android & iOS apps built with Flutter: from the idea to a published app on Google Play, with a single codebase.
Databases & Custom Systems
A well-designed database (PostgreSQL with Supabase, or Firebase) with the required panels and reports, and an orderly way out of spreadsheets that outgrew Excel.
Power BI Dashboards
Interactive dashboards that bring a business's scattered data (Excel, databases, online sheets) into clear indicators — sales, inventory, costs or attendance — with scheduled refresh and access from a computer or a phone.
Data Analysis
Cleaning, organizing and analysing business data to answer concrete questions (what sells most, where margin is lost, what is worth improving) and delivering the result as a clear report with conclusions and recommendations.
Business Automation
Custom tools and Excel/VBA automations that remove repetitive work — like managing an inventory of 13,000+ items automatically.
Payments & Integrations
Online payments with Mercado Pago, Google sign-in, Google Drive and the other services a business already uses.
Testing & Quality Assurance (QA)
Review of apps and websites before they go live: test plan and cases, functional and exploratory testing on phones and browsers, and a clear, reproducible bug report so issues get fixed in time.
Publishing & Support
Store submission, signing, updates and ongoing maintenance so the app or site stays secure, current and running smoothly.
Not sure what is needed? Describing the problem is enough to receive a proposed solution.
Start a projectProjects
Apps and tools ready to use
Real products, designed, built and published end to end. Each one can be opened, seen in action and tried on a phone.
Apps for everyday life
Simple, fast and made to solve one thing really well.
Early access
Toc Toc
Android
Buy and sell in your neighborhood — with payment protection.
- Discover shops near you, with real distance and opening hours
- Pay in the app — protected until you confirm your order
- Chat directly with the seller and follow your order
Early access
PrecioBencina
Android
Find the cheapest fuel near you.
- Live prices from the official CNE data, with the update time on every station
- The cheapest station near you, highlighted
- Filter by 93, 95, 97, Diesel, Kerosene or LPG
Early access
Bitácora
AndroidiOSLinuxWeb
Never miss a deadline again — tasks, classes and files in one place.
- Pending, overdue and delivered tasks, with clear urgency levels
- Reminders so you never arrive late to a deadline
- Grades and attendance for each subject, always at hand
Early access
HolyApp
Android
Learn the Bible by playing — every mistake teaches you.
- 7 levels, from Entry to Evangelist — your level unlocks all the lower ones
- Every answer comes with an explanation and Bible references
- Missed questions return until you get them right
Early access
Horas Médicas
Android
Rancagua's clinics, one tap away from your appointment.
- 8 clinics in one list, each with its real logo
- Search by name or website
- Favorites pinned to the top
Early access
fasT
Android
Open a WhatsApp chat in one tap — without saving the contact.
- Adds the Chilean +56 code automatically and validates 9-digit mobiles
- Paste button to bring the number from your clipboard
- History of your latest numbers and a favorites list
Early access
CoroApp
Android
Your choir's repertoire, organized by voice.
- Choose your choir and your voice; the top bar changes color with it
- Lyrics as PDF and the practice tracks for your voice
- Download songs to rehearse with no internet
In development
LOGOS
Android
Learn languages by reading — from English to Biblical Hebrew.
- Four study languages, including Biblical Hebrew and Koine Greek
- 68 graded English stories, levels A0 to C2
- A comprehension quiz at the end of every story
Available (APK)
SOS App
Android
One tap tells your family you need help.
- Panic button: your family receives your alert and location
- An alarm that sounds even in Do Not Disturb mode
- Live map and emergency chat inside the group
Early access
MisionApp
Android
Every person, every visit — organized for the mission.
- Register each person and each visit, with date and content
- Search by name or address; sort by name, last visit or complexity
- Filters: who wants visits, who is overdue by 30 or 60 days
Solutions for security companies
Tools that put guards, gates and tenders under control.
Available (APK)
Control de Rondas
AndroidWeb
Security rounds you can prove — NFC, QR and GPS.
- Check-in by NFC, QR code or manually, with an optional photo
- Every check-in stamped with the guard's GPS location
- Supervision center: map of guards, round logs and search
Available (APK)
Control de Acceso
Android
Know who comes in and out — even when the internet goes down.
- People and vehicles in one live dashboard
- Pre-authorized visits with QR passes
- A blacklist with the reason for each restriction
Available (APK)
Licitaciones CRM
Android
Keep every tender and client visit under control.
- Companies, sites and contacts in one place
- Tenders with publication and due dates, estimated budget and status
- Alerts with the days of notice you choose, and a “Due today” warning
Tools to get more done
Small products that take the friction out of the day.
Early access
sbox
LinuxAndroidWindows
Copy on your PC, paste on your phone.
- Text and files, instantly, between PC and phone
- No server, no accounts, nothing goes to the cloud
- Pair once with a 6-digit code; they reconnect automatically
In development
Live Subtitles EN→ES
Linux
Watch anything in English with live Spanish subtitles.
- Transcribes the audio playing on your PC, in real time
- Spanish translation next to the English text
- Speech recognition 100% offline: your audio stays on your machine
In development
Categoría al Día
Windows
Inventory counts and barcodes, automated in Excel.
- Automated inventory counts
- Barcode generation
- Report analysis in one click
Clients
Client work
CityBestX
Sustainable e-mobility & wine-tourism startup (Chile). Contracted to build the site's launch “coming soon” landing page — three directions delivered for the client to compare and choose from.
Prototype 1 UnavailablePrototype 2 UnavailablePrototype 3 Unavailable
Video hereQuotes
Quotes and timelines
Every project is different, so no price list is published: the quote is delivered in writing once the requirements are known. Timelines are for reference.
Landing page or simple site
Estimated timeline: 2–3 weeks
Typically includes
- Design that adapts to phones
- WhatsApp button and contact form
- Basic SEO
Business website
Estimated timeline: 3–6 weeks
Typically includes
- Several sections and a simple content panel
- SEO and Google-friendly structure
- Contact form and analytics
Database and panel
Estimated timeline: 3–8 weeks
Typically includes
- Data model design
- Migration from existing spreadsheets
- A panel to view and edit the data
- Backups
Power BI dashboard
Estimated timeline: 3–6 weeks
Typically includes
- Definition of indicators and data sources
- Data model, measures (DAX) and interactive dashboard
- Publishing and scheduled refresh
- Short guide to use it
Data analysis and report
Estimated timeline: 2–5 weeks
Typically includes
- Cleaning and organizing the data
- Exploratory analysis and key findings
- Report with conclusions and recommendations
- Presentation of the results
Mobile app (MVP)
Estimated timeline: 9–15 weeks
Typically includes
- Android (iOS optional)
- User sign-in
- Cloud database
- Publishing on Google Play
Excel/VBA automation
Estimated timeline: 3–11 days
Typically includes
- Analysis of the current process
- Custom macros and reports
- Short guide to use them
Testing and QA
Estimated timeline: 2–4 weeks
Typically includes
- Test plan and test cases
- Functional and exploratory testing on phones and browsers
- Reproducible bug report
- Regression testing after the fixes
Monthly maintenance
Estimated timeline: Ongoing
Typically includes
- Updates and fixes
- Monitoring and backups
- Support by WhatsApp or email
What affects the price
- Scope: how many screens, features or pages
- Integrations: payments, sign-in, other services
- Data to migrate or connect
- Deadline and the support required afterwards
Invoicing
An invoice is issued through BRAVO SERVICIOS SPA, or a professional-fees receipt (boleta de honorarios), as preferred. Quotes are in Chilean pesos (CLP); VAT is added when invoiced.
Process
Work process
A simple, transparent path from the idea to a live product.
- 01
Discovery
Analysis of the idea, goals and budget, turned into a clear scope and plan.
- 02
Design & Build
Flow design and construction in short iterations, with progress that can be tried at every stage.
- 03
Launch
Testing, store submission and go-live: the app or site ready for real users.
- 04
Support
Updates, improvements and maintenance so it keeps running smoothly over time.
FAQ
Common questions
How is payment made, and what document is issued?
An invoice can be issued through BRAVO SERVICIOS SPA, or a professional-fees receipt (boleta de honorarios), as preferred. Quotes are in Chilean pesos.
How long does a project take?
It depends on the scope: from a few days (an Excel automation) to 9–15 weeks (a mobile app). Reference timelines are in “Quotes and timelines”, and the final quote is always in writing.
How much does it cost?
It depends on the scope of the project, so no price list is published: describing the need is enough to receive a written quote.
What is needed to get started?
Describing the idea or the problem by WhatsApp or email is enough. The reply includes questions and a proposed scope.
Can online payments be integrated?
Yes. In Toc Toc, Mercado Pago split payments were integrated: the money goes straight to the seller's account.
Can Power BI dashboards be built from Excel spreadsheets?
Yes. Data from Excel, databases or other sources is connected to Power BI, organized into a model and presented in an interactive dashboard with scheduled refresh. The reference timeline is 3 to 6 weeks, depending on the number of sources and indicators.
Can an existing app or website be reviewed?
Yes. A testing (QA) cycle can be run on an app or a site that already exists, with a reproducible bug report and improvement recommendations. The reference timeline is 2 to 4 weeks.
Can Excel spreadsheets be moved into a real system?
Yes. The work includes designing the database, migrating the data and providing a panel to view and edit it.
Can the work be tried before hiring?
Yes. Several products can be tried right in the browser or installed from Google Play (free early access), and the code of most of them is on GitHub.
About
Real products, published end to end.
Mobile and full-stack development from Chile, focused on Flutter, Supabase and Firebase. The approach: turning everyday problems into small, reliable apps — from comparing live fuel prices to booking medical appointments and studying with offline trivia.
The work is offline-first: local caching with Hive or SharedPreferences, clean service layers and automatic cloud sync when the connection is back, with clear UX, Material 3 design and backends that keep credentials safe (Cloud Functions BFF patterns).
Portfolio built from original products, developed and published end to end. The first projects are currently being accepted: businesses that need a website or an app, founders with an idea and teams that require a developer on contract. Available for freelance projects and contract work.
- 16Original products, built end to end
- 8On Google Play (early access)
- 4Platforms (Android, iOS, Linux, Web)
Skills
Tools and technologies
Languages
- Dart
- JavaScript / TypeScript
- Python
- SQL
- VBA
- HTML / CSS
Frameworks
- Flutter
- Astro
- Riverpod / Provider
Backend & Databases
- Supabase (PostgreSQL)
- Firebase (Auth, Firestore, Functions, Hosting)
- Hive
- Isar
Data & Analytics
- Power BI
- Data analysis
- Excel / VBA
- SQL
Integrations
- Mercado Pago
- Google Drive API
- Google Sign-In
- Google Play
Concepts
- Offline-first
- REST / BFF
- Row-level security (RLS)
- Material 3
- Linux desktop
- Testing & QA
Contact
Start a project
Websites, apps, databases, data analysis and QA for businesses. Describing the problem or idea by WhatsApp or email is enough to receive a proposal. An invoice is issued through BRAVO SERVICIOS SPA, or a professional-fees receipt (boleta de honorarios), as preferred.
Emailcristian.bravo.droguett@gmail.com