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Custom software with a fixed scope and a set timeline.

For practices, firms and companies that outgrew spreadsheets. Scope, timeline and price come in the proposal.

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Clients

Companies that already use what we built

Websites and systems built around how each one works.

What we do

From websites to management systems, we build what your operation needs.

We group the work into four types. Each one starts from what you use today: paper notes, a spreadsheet, WhatsApp or an old system.

Fordoctors, therapists, lawyers, service providers and companies that outgrew spreadsheets.

  • Websites

    Websites that present your work and bring the conversation to WhatsApp.

    See websites
    • One page per professional, with their training and how they see clientsFor psychology practice
    • Each specialty explained in plain words for patients, with the path to a first appointmentFor medical practice
    • One page per service, with what is included and the path to getting in touchFor accounting firm

  • Management systems

    Records, contracts and finance in one system, in place of spreadsheets.

    See management systems
    • Each client's contracts and due dates in a single listFor law firm
    • Payables and receivables, recurring entries and receipts in the same placeFor service provider
    • Records, role-based permissions and reports that today come from several spreadsheetsFor company outgrowing spreadsheets

  • Scheduling and client service

    Schedules per professional, client records and automatic reminders.

    See scheduling systems
    • Reminder before each session, by email or notificationFor psychology practice
    • Each client's record linked to their appointments and upcoming datesFor law firm
    • Visits booked per technician, with the time and service of each oneFor service provider

  • Automations and integrations

    Alerts, contracts signed by link and spreadsheets imported without copy and paste.

    See automations
    • Fee agreement generated as a PDF and signed by the client through a linkFor law firm
    • Current spreadsheets imported, with someone on the team checking before anything is appliedFor company outgrowing spreadsheets
    • A cross-check between two spreadsheets that points out what does not matchFor accounting firm

Don't see your case here? Tell us how it works today.

Describe your routine as it is now. We tell you whether it can be built and where to start.

Describe your case

How we work

Fixed scope before the first line of code.

Scope is the list of what we will build. It is written into the proposal, along with what stays out, the timeline and the price.

  1. Conversation and proposal

    You tell us on WhatsApp how your routine works today, on paper, in a spreadsheet or in an old system. Then you get a proposal with scope, timeline and price.

  2. Build in stages

    We build in the agreed order, starting from what you already use. Each stage delivers one part of the system.

  3. Delivery and maintenance

    After delivery, we host the system and keep it running, for a monthly maintenance fee.

See our process

You talk to the person who builds it.

Kauã Corrêa is Keystone's founder and the engineer responsible for its projects. He leads the conversation, the proposal and the delivery, in English or Portuguese. Your questions go straight to the person accountable for the system.