Quick help.
Four ways to get unstuck — pick whichever fits your situation. Most questions are answered in the FAQ; technical issues we'll handle by email.
Common questions, answered.
Calculations, fractions, syncing — the things shop owners ask us most.
↳ view FAQUser guide & documentation.
Step-by-step walkthroughs for invoices, calculations, and rules.
↳ read guideTalk to a human.
Stuck on something specific? Email and we'll usually reply same-day.
↳ contact usVideo tutorials.
Short screencasts on the trickier features. In production.
↳ coming soonFrequently asked questions.
Six things glass shops have asked us in the last month. If yours isn't here, scroll down to contact.
Q.01 How do I create my first invoice in Kanch? +
Five steps:
1. Set up your company profile — name, GSTIN, address, banking, logo. 2. Tap "New Invoice" from the dashboard. A PI number is assigned automatically. 3. Add glass items: length, breadth, qty, thickness, glass type. 4. Kanch auto-calculates chargeable dimensions, areas, polish, holes, totals. 5. Tap Save → PDF when ready.
The 15-column grid behaves like a spreadsheet — copy, paste, and tab between cells.
Q.02 How do glass calculations work in Kanch? +
Kanch handles the math automatically:
· Enter actual dimensions in mm or inches (mixed fractions like 36 3/16 are accepted).
· Chargeable rules (add value, multiple of) per glass type produce billed
dimensions.
· Glass type + thickness picks the rate per sqft.
· Add polish (L, B, or both), holes, and cutouts on the same row.
· Area in sqft and amount in ₹ refresh live.
Q.03 Can I use both mm and inches in the same invoice? +
You can switch the unit on any invoice. Inches accept mixed fractions like 12 3/4 via the dedicated ½ key on the numeric keypad; mm accepts decimals. Internal calculations convert to sqft and ₹ regardless of which unit you typed in.
Q.04 How do I set up chargeable rules for my shop? +
Settings → Chargeable Rules. Two rule types you can combine per glass type:
· Add value: add a fixed amount (e.g. 1/8″) to actual
dimensions.
· Multiple of: round up to the next multiple — so 10.74″ becomes 12″ at "multiple of 3".
Different glass types can carry different rules.
Q.05 Can I customise glass types and rates? +
Settings → Set Rates. You can:
· Add custom glass types (Block, Door, Farma, Tuffon, Mirror, etc.).
· Set rates per sqft for each thickness × type combination.
· Configure per-hole, per-cutout, and polish rates.
· Add admin charges and other fees.
Rates apply automatically in every invoice.
Q.06 How does data sync across devices? +
Sign in with the same email on any device. Company profile, invoices, settings, and rates sync in real time via Firebase. Offline edits flush to the cloud once you're back online — you won't lose work on a flaky network.
Q.07 I hit a bug. What should I do? +
In order:
1. Restart the app. 2. Confirm you're on the latest version (Settings → About). 3. Email kanch.help@gmail.com with: the device, OS, app version, what you were doing, and a screenshot if relevant.
We typically reply within 24 hours.
Documentation & guides.
Long-form articles for the features that need a bit more explaining. Drafts shipping monthly.
Getting started.
Quick setup guide for new users. From install to first invoice in 10 minutes.
Glass calculations.
How dimension & pricing calculations work under the hood.
Invoice management.
Creating, editing, archiving, and sharing invoices.
Settings & rates.
Customising rules, glass types, rates, and preferences.
PDF generation.
Branding your invoices: logo, GSTIN, signature, UPI QR, bank details.
Data sync & backup.
Managing data across web, mobile, and desktop. Offline behavior.
Contact support.
Email or use the form. Either reaches the same inbox — real people, usually a same-day reply.
Email support.
Anything from "how do I" to "this doesn't work." We respond within 24 hours.
kanch.help@gmail.comBug reports.
Crashes, wrong numbers, weird behavior. Include device, version, and a screenshot.
↳ report a bugFeature requests.
Got an idea for something that'd make your shop floor faster? We read all of them.
↳ suggest a feature