Doon Digital - Dehradun's Trusted Agency

Windows Software Development Company in Dehradun

Windows desktop software with a clean installer, an updater that respects the person using it, and an interface that feels at home on the desktop. Kapy Notes, our notes app, ships on Windows today.

500+ Projects Delivered
200+ Happy Clients
7+ Years Experience

64-bit

Windows Installer

22

Releases in 11 Days

1.22

Latest Kapy Notes Release

7+

Years in Dehradun

What is Windows Software Development?

Windows software development is building desktop applications that install and run on Windows PCs. Doon Digital builds Windows software from Dehradun, and our own notes app, Kapy Notes, ships as a 64-bit Windows installer with a built-in updater, optional window transparency and end-to-end encrypted sync. Because it is built in Flutter, the same product also runs on Mac, iPhone and Android. We handle design, development, packaging and updates.

Windows desktop applications
64-bit installers
Built-in update checks
Cross-platform apps in Flutter
Internal tools for your team
Windows versions of existing apps
Kapy Notes desktop windows: a notebook with a packing checklist and a trip budget calculated line by line

The Problem

You need software that runs on the Windows PCs your customers or staff already use, but desktop development has traps of its own: installers that set off security warnings, updates that interrupt people in the middle of their work, and interfaces that look out of place next to everything else on the screen.

Our Solution

We build Windows software that installs cleanly, updates on the user's terms and feels at home on the desktop. The team building yours has shipped Kapy Notes on Windows, with a built-in updater and encrypted sync, built in Flutter so the same product also reaches Mac, iPhone and Android.

Our own work

Windows software we have built

Live products you can download and judge for yourself. Every screenshot below comes from the product's own website or its app store listing, and every figure is one those sources state.

Kapy Notes app icon

Kapy Notes

Notes with built-in calculations

Notes that do the math.

A calm notebook for lists, journals and plans where answers appear only on the lines that need them. Write a budget in plain words and the totals, units and currency conversions show up in a slim rail beside it.

macOSWindowsiOSAndroidBuilt with Flutter
  • FlutterOne framework across desktop and mobile
  • EncryptedEnd-to-end encrypted sync, off by default
  • 1.22Latest release, September 2026
  • $24Pro, paid once, no subscription
Kapy Notes working out a Lisbon trip budget, with totals and a euro to dollar conversion in a rail beside each line
Kapy Notes working out a Lisbon trip budget, with totals and a euro to dollar conversion in a rail beside each line. Captured from the live app window rendered on kapynotes.com.

Built for Windows

  • A 64-bit Windows installer downloaded directly from kapynotes.com, with no store in between.
  • A built-in updater that checks once a day and downloads nothing until the user asks it to.
  • An optional transparent window: the desktop shows through, blurred, with a slider for how much, while menus and the writing surface keep enough body to stay readable.
  • A keep-on-top window that steps aside for the updater and About panels instead of covering the very dialog the user just opened.

Across the product

  • Inline calculations with variables, units, percentages and currency conversion, answered in a rail beside the lines that ask.
  • Local by default. Sync is optional and end-to-end encrypted with a passphrase only the user knows.
  • Voice notes transcribed and summarised on the device with no account and nothing leaving it, or in the cloud on devices that cannot do it themselves.
  • Shared notes, with collaborators shown by name and picture rather than by email address.
  • Numbers follow the device's region, so a device set to India counts in lakh and crore rather than millions.

What We Offer

Good Windows software installs without fuss, stays out of the way, and never surprises the person using it. That sounds simple, and it is exactly where a lot of desktop software falls down: updaters that download without asking, windows that hide their own dialogs, and settings nobody can make sense of. Kapy Notes is our notes app with built-in calculations, and it ships on Windows as a 64-bit installer downloaded directly from its website. Its updater checks for new releases once a day and downloads nothing until the user asks. It offers an optional transparent window, with the desktop showing through blurred while menus and the writing surface stay readable, and its keep-on-top mode steps aside for the updater and About panels instead of covering them. We built Kapy Notes in Flutter, so the same product also runs on Mac, iPhone and Android, with notes kept on the device by default and synced, when the user chooses, with end-to-end encryption. If your Windows software needs to reach other platforms too, that approach saves building it several times over.

Windows Software Development

Windows desktop applications
64-bit installers
Built-in update checks
Cross-platform apps in Flutter
Internal tools for your team
Windows versions of existing apps

Desktop Experience

Windows that feel at home on the desktop
Transparency and appearance options
Keep-on-top windows done properly
Light and dark themes
Regional number formats
Clear, labelled settings

Data and Sync

Local-first storage
End-to-end encrypted sync
Sharing and collaboration
File export
Voice notes and transcription
Account-optional design

Release and Support

Direct download distribution
Update checks that download nothing unasked
Changelogs users can read
One-time licences and pricing
Bug fixes and new features
Support pages

Our Proven Process

We follow a systematic approach to deliver exceptional results for every project.

1

Scope

We agree what the software must do, who installs it, and which other platforms matter

2

Design

Screens, settings and window behaviour designed and approved before any code

3

Build

The approach that suits the software, including Flutter when other platforms matter

4

Test

On real Windows PCs, across display sizes, scaling and regional settings

5

Package

A 64-bit installer, release notes and a built-in update check

6

Update

Fixes and features released on a cadence people can follow

What We Have Shipped on Windows

Figures taken from Kapy Notes' own website and changelog, so you can check every one of them.

22

Kapy Notes desktop releases in its first 11 days

1.22

Latest Kapy Notes release, September 2026

Daily

Update check that downloads nothing until the user asks

Why Choose Doon Digital?

Dehradun's most trusted digital marketing agency with 7+ years of experience.

Shipping on Windows

Download Kapy Notes and judge the work

Encrypted Sync

End-to-end, with a passphrase only the user knows

Cross-Platform Reach

Built in Flutter, so Mac, iPhone and Android follow

7+ Years in Dehradun

A local team you can meet, since 2019

Frequently Asked Questions

Find answers to common questions about our services.

Related Services

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Ready to Get Started?

Contact Doon Digital today for a free consultation. We're Dehradun's trusted partner for all your digital marketing needs.

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+91-7060329341|info@doondigital.in|Badowala, Dehradun, Uttarakhand 248007