illVoc Quotes and invoices, made on site.
BillVoc is offline-first billing for electricians, plumbers and repair techs who bill from a phone. No account, no backend, no network calls — every record stays on your device.
A Huygen Labs product · Android · See how it works
Rao Electricals
Jayanagar, Bengaluru
Invoice
INV-0247
| Item | Qty | Amount |
|---|---|---|
| Replace 16A MCB | 1 | ₹850 |
| Wiring labour · ₹450/hr | 3 | ₹1,350 |
| Visit charge | 1 | ₹300 |
- Subtotal
- ₹2,500
- GST 18%
- ₹450
- Total
- ₹2,950
- Paid · UPI, 12 Oct
- −₹1,500
- Balance due
- ₹1,450
Built for the field, not the back office.
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Works with no signal
Create, edit, share and print with the network off. Nothing waits to sync, and no job gets stranded in a basement.
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No account, no setup
First run asks one question — the currency you bill in. A business is ready before you type anything else.
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Quote to invoice, in a tap
Send an estimate, then turn the accepted one into an invoice without retyping a single line.
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Honest payment tracking
Record part payments and always see the balance. BillVoc never claims money arrived — you do.
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PDF, print, share, UPI QR
Ten ready-made designs, watermarked drafts and cancelled copies, and a UPI QR on unpaid INR invoices.
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Reports and free backup
Invoiced, collected and outstanding — one line per currency. Back up and restore with a single file, always free.
Three steps, from the driveway.
- 1
Tell it your currency.
Day one asks one question: the currency you bill in. A default business is made with it, and you can change it later.
- 2
Make the quote or invoice.
Type the client inline, add items with − / + quantities, set tax per line and a discount. Drafts save themselves as you go.
- 3
Share it, then track what is owed.
Send or print a PDF on site. Record part payments as they land, and watch the balance until the invoice reads paid.
Free to use. Pro when you outgrow it.
No account and no forced trial. Start on Free, and nothing you rely on — quotes, payments, sharing or backup — is locked behind Pro.
| Feature | Free | Pro |
|---|---|---|
| Invoices a month | 5 | Unlimited |
| Businesses | 1 | Unlimited |
| Invoice designs | 3 | All 10, no watermark |
| Reports | Basic | Compare periods & ranges |
| Screenshots | — Not included | ✓ Included |
| Unlimited drafts & quotes | ✓ Included | ✓ Included |
| Payments, sharing & UPI QR | ✓ Included | ✓ Included |
| File backup, restore & CSV export | ✓ Included | ✓ Included |
| Cloud backup (Drive, iCloud) | Soon | Soon |
Pro pricing is announced when BillVoc reaches Google Play. While billing is off, the free-invoice counter is shown but not enforced, so no work is ever stranded.
Things people ask.
Does BillVoc need an internet connection?
No. There are no network calls in the app. You can create, edit, share and print a document with the signal off.
Where is my data kept?
On your phone, in the app's own storage. There is no BillVoc account and no server. Uninstalling the app deletes it, so back up often — Settings → Backup & restore.
Is it really free?
Yes to start. Free covers one business and five issued invoices a calendar month. Drafts, quotes, payments, sharing, reports, CSV export and backup are unlimited. The preview build shows the invoice counter but does not enforce it.
Can BillVoc file my GST or tell me my tax rate?
No. BillVoc is a calculation and document aid, not tax or accounting advice. It ships no rate presets and does not check GSTINs or HSN/SAC codes. Enter your own rates, and confirm the rest with a tax professional.
Does it confirm that a customer paid?
No. Payments are what you record, and the UPI QR only pre-fills a payment in the client’s UPI app. BillVoc never verifies that money moved.
Which phones does it run on?
Android first. iOS builds are not set up yet.
How do I get it?
The Google Play release is coming soon. Email huygenlabs@gmail.com and we will tell you the day it is live.
Your next invoice can be made on the driveway.
BillVoc is on its way to Google Play. We will tell you the day it lands.