Clear finances
Better decisions

Invoicing, accounting, treasury, analytics and AI, unified in one modern platform. Whether you need simple bookkeeping or full financial control, Mast grows with your business.

Swiss-hosted
FADP compliant
AI-powered
Revenue Outstanding
600K 400K 200K 0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Cumulative Revenue — Jun 2026
CHF 478'250.00
Cash Position
CHF57'809
Refunds
CHF3'240
DSO Analysis
MAY 2026 YTD
61.0 days
TARGET
45 days
Daniel Graf
111.3d
Thomas Fischer
87.1d
Maria Schneider
80.8d
Anna Keller
53.8d
Oliver Brunner
43.8d
Cash Runway
162 days

Platform

One platform for every financial workflow

From invoicing to reporting, bank reconciliation to real-time analytics. Everything your finance team needs, in one place.

Activity
The full invoicing cycle
Accounting
Compliant books, zero guesswork
Treasury
Reconcile, forecast, control
Reports
Your numbers, ready when you are
Database
Your master data, fully connected
Analytics
From data to decisions
Budget & Planning
Plan, compare, adapt
Audit & Compliance
Automated audit
AI Assistant
AI that understands your finances

Why It Matters

What changes when you use Mast

Real-time collaboration

You and your fiduciary work on the same platform. Whether they manage your books or you do it yourself, everyone sees up-to-date entries, documents and reports, no manual exports or back-and-forth between tools.

Less manual work

Smart suggestions, assisted bank reconciliation and automated entries where possible. A modern interface that reduces data entry, so your team or fiduciary can focus on analysis instead of routine tasks.

Clarity at any moment

Revenue, margins, cash position and KPIs update in real time, ready for your next board meeting, client review or strategic decision. No more waiting for month-end to see where you stand.


AI Assistant

Meet Mast AI

A built-in assistant to help you navigate Mast and explore your data. Ask simple questions, get quick summaries of your numbers, and find your way around the app faster.

Find invoices, bills, and transactions with simple prompts
Get quick overviews of revenue, expenses, and receivables
Summarize your numbers for a quick look
Find your way around Mast and clarify accounting terms
Mast AI
0
Currencies supported
0
Charts & widgets
0
Swiss-hosted
0
20+ automated audit checks
Swiss GAAP & OR Compliance
ISO 20022 & QR-Bill Support
Complete Audit Trail
How It Works

Get started today

Import your existing data and configure your workspace with a guided setup built into the app.

1

Set Up Your Company

Fill in your company details, select your accounting language, and invite your fiduciary or accountant to collaborate.

2

Import Your Data

Import your chart of accounts, open balances, customers, suppliers, and products via Excel. Start with the Swiss KMU template or bring your own.

3

Connect Your Banks

Set up SFTP connections to your bank or upload CAMT.053/MT940 statements directly. Compatible with all major Swiss banks.

4

Customize & Go Live

Customize templates, settings and preferences to fit your workflow, invite the rest of your team, and go live.

Bespoke services

A more complex setup or migration?

Our team offers tailored onboarding and integration services for larger or specialised needs.

Contact us
Private Beta

Join our beta testers

We are building a first community of companies and fiduciaries to test Mast in real conditions. Swiss-hosted from day one.

Are you a fiduciary?