stroban™ Life made simple
See the toolsTools
stroban · verb · to build

Life made simple

Small, sharp tools you can trust.

Quick to use, easy to trust, and yours to keep. Each Stroban app does one job well, right in your browser.

See the tools Talk to us

Built for privacy. No trackers, no ads. Your data stays on your device unless you choose to share or sync it.

  • Free to start
  • No sign-up to try
  • Works in your browser
Open an app
KharchaYour expenses, kept on your phone QR StudioTurn any link into a QR code AakarPhotos and PDFs sized for any form SamparkCopy emails and phones from any page PramaanBulk certificates with QR verification
The tools

Handy tools, each doing one job well.

Every app is free to start. Open it in your browser, or install it to your home screen like any other app.

For everyday
Kharcha icon

Kharcha

kharcha.stroban.app

Track your daily expenses, kept on your phone.

  • See where your money goes, month by month
  • Works offline, with an optional PIN lock
  • Pro: sync your phone and PC through a private Google Sheet we set up for you, and add your own categories
Free · Pro, pay onceQuick startOpen Kharcha →
QR Studio icon

QR Studio

qr.stroban.app

Turn any link into a clean, scannable QR code.

  • Quick builders for WhatsApp, UPI, call and email
  • Your colours, with a contrast check so it still scans
  • Pro: your logo in the centre, SVG and PDF downloads, batch codes from a list
Free · Pro, pay onceQuick startOpen QR Studio →
Aakar icon

Aakar

aakar.stroban.app

Photos, signatures and PDFs, sized to the exact rules of exam and government forms.

  • Pick your exam or form, add the file, get one that's ready to upload
  • Resize photos and signatures, compress PDFs, turn JPGs into a PDF
  • Pro: batches, saved presets and unlimited PDF pages, for cyber cafés and form-filling centres
Free · Pro, pay onceQuick startOpen Aakar →
For work
Sampark icon

Sampark

sampark.stroban.app

Find every email and phone number on a page, and copy them in one click.

  • Paste a page, drop in a PDF, or tap the one-click bookmarklet
  • Cleans up and de-duplicates Indian and international numbers
  • Pro: collect across pages, export to CSV or straight into phone contacts
Free · Pro, pay onceQuick startOpen Sampark →
Pramaan icon

Pramaan

pramaan.stroban.app

Bulk certificates, each with a QR code anyone can scan to verify.

  • Design a certificate once, add your list, get one PDF per person
  • Built for colleges, training teams, event organisers and NGOs
  • Pro Pass: a public verify page for every certificate, and revoking
Free to start · Event Pass from ₹199Quick startOpen Pramaan →
How we build

Small tools, well built.

Runs in your browser

The work happens on your device. Your data stays there unless you choose to sync it or publish a verify page.

No trackers

No ads and no tracking scripts. The apps load what they need to work, and nothing else.

Free to start

Every app has a free plan and needs no sign-up to try. Upgrade only when you need more.

Fair, simple pricing

Kharcha, QR Studio, Aakar and Sampark Pro are a one-time payment, with no subscription. Pramaan has a two-month Event Pass from ₹199, a yearly Pro Pass with QR verification, and quotes for institutions.

Stroban Education

Learning made SIMple

Stroban Decision Sims are simulation-based caselets for management classrooms. Students make the calls inside a real business situation and see what their choices set in motion.

For faculty and institutionsDecision Sims at stroban.org For studentsJoin your sim at play.stroban.org

Questions, or buying for a team?

Message us on WhatsApp or write to us. Licences for every app are sold the same way, and your key arrives by email.

Message us on WhatsApp
hello@stroban.app
+91 83673 54510