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Mester
en

Your appointment book, minus the lost pages.

Mester is a simple day planner for people who work with their hands and run their own schedule. Every booking sits on the client, and every client keeps all the ways you talk to them.

Ask for early accessiPhone first. Android later.

How it works

Three things it does, and it does them fast.

  1. 1

    Book in ten seconds

    Type two letters of a name, tap a free slot, note what you're doing. No service catalogue to set up — every job can be its own length.

  2. 2

    Open the right chat

    Clients write from WhatsApp, Viber, Telegram, Instagram, Messenger. Mester keeps every channel on the client card and opens the right conversation in one tap.

  3. 3

    Remind and reschedule

    Send a reminder with a ready-made message. Move a booking without retyping it, and see how many times it has been moved.

Who it's for

Made for the trades that booking apps forget.

  • Cosmetologists
  • Nail technicians
  • Massage therapists
  • Barbers
  • Car mechanics
  • Electricians
  • Tutors
  • Tattoo artists
  • Dog groomers
  • …anyone with a notebook and too many chats

Online booking

Coming soon

Your own link for clients.

A personal page where a client sees your free time and sends a booking request. You confirm it in the app. The client installs nothing and registers nowhere; there is no marketplace and no commission.

  • Shows only free slots — never other clients or their names
  • You confirm each request, or let Mester confirm automatically
  • Works from the link in your Instagram bio or a QR code on the door

Pricing

One plan. 14 days free.

Mester Pro costs €7.70 a month or €77 a year. The first 14 days are free and need no card. If you do not subscribe, nothing is deleted — the app just becomes view-only.

See what is included

Yearly

€77

per year

Monthly

€7.70

per month

Questions

Asked before trying

Do my clients need to install anything?

No. Mester is your tool. You write to clients in the messengers they already use — Mester opens the right chat with a ready-made text.

Does it work without internet?

Yes. Everything is stored on your phone, so the schedule opens and saves instantly. When the connection is back, Mester syncs by itself.

What if I lose my phone?

Create an account with your email: your data is backed up to our server in Germany. Sign in on a new phone and everything is back.

Which messengers are supported?

WhatsApp, Viber, Telegram, Instagram, Messenger, plus ordinary calls and SMS. Each client can have several channels; one of them is the main one.

Is there an Android version?

Not yet. Mester starts on iPhone; Android comes after that.

What happens after the 14 free days?

You can subscribe to Mester Pro or keep the app in view-only mode: all clients, bookings and history stay visible and can be exported.

Try it on your own schedule.

Mester is in private testing. Leave your email — we will send an invitation to install the app.

Ask for early access