Deftera

Never forget again

Customer measurements, your quote, the deposit, remaining balance, the next appointment… All in one book. Built to clear the tradesperson's mind.

Don't keep it in mind · Keep it here

100%

Offline

iOS & Android

Both platforms

Free

Starter plan

Deftera: Client Book & Job Log Never forget again

Deftera: Client Book & Job Log — Income, expenses, receivables

Your cash in the palm
of your hand

Income, expenses, receivables · instant summary at a glance

Simple mode for anyone who just wants to track daily, monthly and yearly cash flow. Use it as a daily income expense tracker, cashbook, money manager, or budget app — in your pocket.

Client tracker, customer management, accounts receivable, debt tracking — in one notebook:

USD, EUR, GBP, TRY and 50+ currencies. Automatic exchange rate conversion.

Customer management: add from contacts in one tap, full history together
Job tracking: active / completed jobs, appointment reminders
Credit / debt tracking: who owes what, was it paid?
Payment tracking: deposits, installments, remaining balance

Deftera: Client Book & Job Log — Debts, credits, work history

All your customers in one place

Debts, credits, work history · stop wasting time searching

Customer management: add from contacts in one tap, full history together

Client tracker, customer management, accounts receivable, debt tracking — in one notebook:

Customer management: add from contacts in one tap, full history together
Payment tracking: deposits, installments, remaining balance

Your jobs managed effortlessly

Active · Done · Unpaid

Client tracker, customer management, accounts receivable, debt tracking — in one notebook:

USD, EUR, GBP, TRY and 50+ currencies. Automatic exchange rate conversion.

Job tracking: active / completed jobs, appointment reminders
Payment tracking: deposits, installments, remaining balance
Assign tasks to each job, track progress item by item
Daily task list, to-do list with reminders
Priority, due dates, push notifications
Live percentage complete per job

Deftera: Client Book & Job Log — PDF & Excel

PDF & Excel in one tap

Turn your reports into shareable docs in seconds

Professional PDF output in one tap:

Ready for your accountant:

PDF quote / estimate generator (logo + color customization)
PDF invoice — use as your invoicing app
PDF payment receipts — send instantly when paid
PDF reports: monthly and yearly business reports
One-tap share via WhatsApp, email or SMS
Export to Excel (.xlsx) and CSV

Deftera: Client Book & Job Log — what did you earn?

At month's end what did you earn?

Yearly flow, customer breakdown · everything at a glance

Yearly flow, customer breakdown. everything at a glance.

Simple mode for anyone who just wants to track daily, monthly and yearly cash flow. Use it as a daily income expense tracker, cashbook, money manager, or budget app — in your pocket.

Ready for your accountant:

Export to Excel (.xlsx) and CSV
Monthly and yearly accounting summary
Cashbook reports, income expense statement
One-tap email to bookkeeper
Works fully offline — keep working without signal
Fast and lightweight — local database, instant launch

Deftera: Client Book & Job Log — at night

Looks sharp at night too

With dark mode, your eyes stay comfortable after hours

With dark mode, your eyes stay. comfortable after hours.

MEASUREMENT PHOTOS & AI

Snap a measurement photo, AI writes the numbers and notes onto the job card
Full screen, pinch zoom — easy to read on the jobsite
Photos stay attached to each job, nothing lost

Built for

A notebook for every trade

Whether you just want a simple daily income and expense tracker, or you're a contractor running multiple jobs — Deftera was built for you. Carpenters, tailors, plumbers, electricians, HVAC technicians and painters have been using Deftera from day one. Works fully offline; cloud backup is optional.