For people who work for themselves
From quote to payment, on your phone.
Mestre organizes clients, quotes, jobs and payment reminders for people who work for themselves. It works fully offline with no account needed, and your data stays on your phone.
Free to start · Android · App in Portuguese
Free
Every feature on the Free plan. What changes between plans is the limit.
No sign-up
Open it and use it. No account or password needed.
Works offline
Everything is stored on your phone, and the whole app works without signal.
No ads
No advertising, tracking or data sales.
How it works · 4 stages
From first contact to money in hand.
Four stages, one app. Each leads to the next.
- 01
Quote
Build the quote from your trade’s catalog, send the PDF on WhatsApp and see who hasn’t replied yet.
- 02
Job
Schedule it with a time and address and get a reminder on your phone. On the day, Mestre shows your next appointment.
- 03
Payment
Finished jobs that aren’t paid show up as overdue, with an alert on every plan. WhatsApp opens with the message written, and you’re the one who taps send.
- 04
Earnings
At the end of the month, see what came in, what came out of your pocket and what’s left for you.
Voice helper
Say what you did. Mestre writes it down.
Finished the job with dirty hands? Tap Falar (Talk) and say it your way. The helper builds the job and you check it before saving.
“troquei o chuveiro por 50” (“swapped the shower for 50”)
- Logs a job, quote, client or expense
- Answers numbers, like “how much came in this month”
- Opens the screen you ask for
- Explains how to use the app
By voice or text, in Portuguese. Your phone’s own speech recognition turns voice into text. Mestre only receives the text.
Features · 8 tools
Everything the day asks for.
Fewer notebooks, fewer spreadsheets, fewer forgotten clients.
Clients
A profile for each client and a statement with their full history.
Learn moreQuotes
Items from your trade’s catalog, a PDF for the client and the status of each one.
Learn moreJobs and schedule
Labor, materials, call-out fee and discount, with reminders on your phone.
Learn moreGet paid by Pix
Pix copy-and-paste code and QR code, made on the phone itself, offline.
Learn morePayment reminders
Due-date and overdue alerts, who owes you, for how many days, and the message ready on WhatsApp.
Learn moreEarnings
What came in this month and this year, with a PDF report for MEI sole traders.
Learn moreExpenses
Fuel, tools, lunch, materials. The month’s profit already takes them out.
Learn morePDF documents
Quotes, job and client statements, with your logo.
Learn more
Privacy
Your data stays with you.
On your phone.
Everything you record stays on the device. No one at Nerolith reads it.
No account, no ads.
Use the whole app without an account. No password, advertising, tracking or data sales.
Cloud backup on every plan.
On any plan, Free included, if you want, sign in with your Google account to keep a copy in the cloud, isolated from other accounts, and sync between phones. Photos and logos never leave the phone.
Plans · Free, Pro and Chefe
Every feature on every plan.
What changes is the limit. Start on Free and subscribe to Pro or Chefe when you need more.
Free
R$ 0
No subscription
To start organizing your work.
- 25 clients
- 30 jobs
- 30 quotes
- Every feature in the app
Pro
R$ 19.90 a month
or R$ 199 a year
For a full schedule.
- 150 clients
- 600 jobs
- 600 quotes
- Every feature in the app
Chefe
R$ 39.90 a month
or R$ 399 a year
For working with a team. (“Chefe” means “boss”.)
- 1,000 clients
- Unlimited jobs
- Unlimited quotes
- Every feature in the app
- Team and priority support
Prices in Brazilian reais. Subscribe and cancel through your phone’s app store. Cancelling deletes no data. Pro and Chefe start with a 7-day free trial, before the first charge.

