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Bi'Bulut

Back office for architecture and engineering practices

Software for architects: quotes, receipts and payments.

Bi'Bulut keeps an architect's or engineer's quotes, receipts, e-Invoices, payments and expenses in one panel.

  • 14 days free
  • No card required
  • Cancel anytime
An architect leaning over a floor plan at his desk under lamp light, with books and sketches around
OverviewBi'Bulut introduction video, 22 seconds

Quotes, receipts and payments in one place.

Prepare the quote in the panel and download the PDF. When the work starts, write the fee on a sales record and raise the receipt or invoice from it; each payment lands on that record and the remainder stays on the client's open balance.

e-Fatura

BLT2026000000147

Sent18.05.2026

Sender

Company Name
Yıldız Ticaret Ltd. Şti.
VKN
1234567890
Tax Office
Kadıköy

Recipient

Company Name
Ada Yapı A.Ş.
VKN
9876543210
Tax Office
Beşiktaş

Line Items

DescriptionQuantityUnit PriceKDVAmount
Monthly maintenance service1 pcs₺12.500,00%20₺12.500,00
Filter set3 pcs₺850,00%20₺2.550,00
Installation labor2 hrs₺1.200,00%20₺2.400,00
Subtotal
₺17.450,00
KDV
₺3.490,00
Total
₺20.940,00
InvoiceInvoice detail
Sales
Doc NoDateCustomerTotalKDVStatusInvoice
214102.06.2026Demir Gıda Ltd. Şti.₺18.400,00₺2.760,00ClosedInvoiced
214001.06.2026Kaya Ticaret₺7.250,00₺950,00OpenNot invoiced
213930.05.2026Öz Mobilya₺42.000,00₺6.300,00ClosedInvoiced
213829.05.2026Walk-in customer₺1.180,00₺180,00OpenNot invoiced
4 records1 / 1
SalesSales list

Why Bi'Bulut?

This is not a full accounting package; it is about quotes and outstanding payments not getting lost. Before and after:

BeforeThe quote is written in Word and numbered by handNowThe quote comes out of the panel and is numbered automatically
BeforeThe TL equivalent of a foreign-currency quote is worked out separatelyNowThe TL equivalent is written under the grand total
BeforeOptional work inflates the total or goes on a separate pageNowThe optional item sits in the same quote and stays out of the total
BeforeWhether a payment came in and what is left is searched for in emailsNowThe record shows paid and remaining amounts side by side
BeforeDetails are typed again on the portal for the receiptNowThe receipt or invoice is raised from the saved record

Your data is safe, compliance handled.

The infrastructure is government-approved, and data is stored encrypted and compliant with data-protection law.

Officially approved

Licensed-integrator infrastructure; your e-Invoice and e-Archive documents are legally valid.

Data-protection compliant

Your data is processed on servers in Türkiye, in line with regulation.

Connects with
e-Invoicee-Archivee-SMMWhatsAppExcel / PDF

The practice's paperwork, in one panel.

The quote becomes a PDF, the fee goes on a record, the document is raised from it and payments land on the same record.

  • Project quote

    Prepare the quote in TL, US dollars or euros; a foreign-currency quote shows the TL equivalent under the total.

  • Optional items and signature area

    Write optional work as an optional item; its price is shown and stays out of the total. The PDF ends with a signature and stamp area for the client.

  • Professional service receipt, e-Invoice and e-Archive

    Press Invoice on the saved record and the document comes out: a professional service receipt (e-SMM) if you work as an individual, an e-Invoice or e-Archive if you have a company.

  • Part payments

    Write the project fee once; each payment is entered separately and the record shows what is paid and what remains.

  • Client account

    Total debt and credit and the movements sit on the client's card; meeting notes go on the card too.

  • Terms and text templates

    Save your introduction and quote terms as text templates in the quote settings.

  • Wholesale & Dealers
  • Manufacturing
  • E-Commerce
  • Service & Repair
  • Consulting
  • Construction & Contracting
  • Logistics
  • Grocery & Retail

A partner that actually helps the practice.

Bi'Bulut sets up the same record keeping for an architect working alone and for an engineering practice of a few people.

Questions on your mind

What architects and engineers ask most. If the answer is not here, leave your number.

What is back office software for architects and engineers?

It keeps a practice's quotes, receipts or invoices, payments and expenses on record. Bi'Bulut is cloud-based back office software for architecture and engineering practices: the quote comes out as a PDF, the professional service receipt or e-Invoice is raised from the saved sales record and each payment lands on that record. It does not track projects or sites.

Can I quote in US dollars or euros?

Yes. You pick TL, US dollars or euros as the quote currency, and item prices and totals are written in it. On a foreign-currency quote the TL equivalent can be added under the grand total.

Does it calculate withholding tax and my year-end tax?

No. Bi'Bulut issues the document and records payments and expenses. Withholding, provisional tax and tax returns are your accountant's work.

Does it track projects and sites?

No. Bi'Bulut is a back office program: quotes, sales records, receipts and invoices, payments, expenses and accounts. Project stages, work schedules and site tracking are not in the product.

Set up your quote layout today.

We'll call you and set your fee items and first quote up with you.

  1. Leave your number
  2. We call you
  3. We set it up together