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Up and running in minutes

No lengthy onboarding. No IT department. Three steps and you're sending invoices.

1

Create your workspace

Sign up in 30 seconds. Name your company workspace and you're ready to go — no IT setup needed.

2

Add clients & projects

Import or add your clients, then create projects and link them together. Everything connects automatically.

3

Quote, invoice, get paid

Send quotations, convert them to invoices on acceptance, and track payment status in one dashboard.

1

Create your workspace

Open zengbook.com/signup and enter your name, work email, and a password. We'll set up your company workspace immediately — no email verification waiting room, no IT department, no consultant call.

  • Workspace ready in under 60 seconds
  • Free plan, no credit card required
  • Singapore data residency (Supabase ap-southeast-1)
2

Add clients & projects

Drop in the clients you're already working with — name, contact, address — then spin up projects and link them. Everything connects automatically, so a project always knows which client it belongs to and which quotation generated it.

  • Add clients one at a time or paste a CSV
  • Project status flows from Planning → Active → Complete
  • Attach drawings, contracts, and photos to any record
3

Quote, invoice, get paid

Build a quotation with line items, 9% GST, and retention. Send it to your client. When they accept, convert to an invoice with one click. Track payment status — DRAFT, SENT, PAID, OVERDUE — from a single dashboard.

  • Line-item editor with quantity, unit price, and GST
  • Print-ready PDF for client delivery
  • One-click conversion from accepted quote to invoice

Start your workspace now

Free plan available. No credit card required. Set up in under a minute.

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Zeng Book

AI bookkeeping for Singapore project teams. Capture receipts, match statements, and keep GST-ready records with source evidence attached.

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