Basic
free basic version
€0
- Record trips manually
- Manual PDF/CSV exports
- VMA autopilot (GPS, background)
- Multiple home zones
- Automated PDF/CSV exports (DATEV/Lexware)
- Automatic mileage & travel costs
Deutsch
Scan with your phone to go straight to the store.
Travel expenses on autopilot
DEVDIEM
Your autopilot for travel expenses & tax.
Meal allowances, home-office days and mileage – recorded largely automatically. Ready-made reports for your German tax return. Try PRO+ free for 14 days.
Scan with your phone to go straight to the store.
no more paper chaos
Stop leaving money on the table
If you travel for work, you lose real money every year – because writing down trips, kilometres and home-office days is tedious and gets lost in everyday life. DEVDIEM does it for you, in the background, without you having to open the app for every trip.
For self-employed people, freelancers, field staff, tradespeople and employees who claim expenses, travel within Germany and want to document their travel costs without stress.
Made for the German tax system
DEVDIEM calculates according to German rules (Verpflegungsmehraufwand, Kilometerpauschale, Homeoffice-Pauschale) and exports for German tax advisors. It is meant for trips with your private car or motorbike that you claim via the mileage allowance – it is not a logbook (Fahrtenbuch) for a company car.
how the autopilot works
Set it up once, then it runs
1
Set your home zone – mark your home or office once.
2
Drive off – when you leave your home zone, DEVDIEM automatically starts a business trip and records destinations, stops and (with PRO+) the kilometres driven.
3
Come back – the trip is saved as a finished draft. You only add the client and the purpose – done.
What DEVDIEM calculates for you
- Meal allowances (VMA) at the current German rates – including meal reductions and arrival and departure days.
- Mileage & travel costs for car and motorbike – with the statutory mileage allowance or your own rates. Private days are left out.
- Home-office allowance derived automatically from your working days – including the annual cap.
- Ready-made reports as PDF and as CSV for DATEV and Lexware – optionally sent automatically every month, e.g. to your tax advisor.
the plans
Try PRO+ free for 14 days
New users start with a 14-day PRO+ trial – all features unlocked, no payment details needed.
Pro
subscription
€64.99
per year incl. VAT
- Record trips manually
- Manual PDF/CSV exports
- VMA autopilot (GPS, background)
- Multiple home zones
- Automated PDF/CSV exports (DATEV/Lexware)
- Automatic mileage & travel costs
Pro+
subscription
€89.99
per year incl. VAT
- Record trips manually
- Manual PDF/CSV exports
- VMA autopilot (GPS, background)
- Multiple home zones
- Automated PDF/CSV exports (DATEV/Lexware)
- Automatic mileage & travel costs
You can subscribe to Pro and Pro+ directly in the app or buy them here. Please use the same email address as in your DEVDIEM account. No account yet? Download the app, sign up with this email address and confirm it – your subscription is then unlocked automatically.
FAQ
Frequently asked questions about DEVDIEM
Who is DEVDIEM for?
For self-employed people, freelancers, field staff, tradespeople and employees who claim expenses, travel within Germany and want to document their travel costs without stress.
Does DEVDIEM work outside Germany?
DEVDIEM is built for the German tax system and for trips within Germany. The app interface, rates and reports follow German rules.
How does DEVDIEM detect my business trips?
You set your home zone once. When you leave it, DEVDIEM automatically starts a trip and saves it as a draft. You only add the client and the purpose.
What does DEVDIEM calculate?
Meal allowances at the current German rates, mileage and travel costs, and the home-office allowance including the annual cap.
In which formats do I get my reports?
As PDF and as CSV for DATEV and Lexware, optionally sent automatically every month, for example to your tax advisor.
Can I try DEVDIEM for free?
Yes. New users start with a 14-day PRO+ trial – all features unlocked, no payment details needed. The Basic version stays free afterwards.
What happens to my location data?
DEVDIEM works local-first: trips and profile are stored on your device first and synced encrypted. Your location is only used to detect trips and is never sold to third parties.
Does DEVDIEM replace my tax advisor?
No. All calculations are made carefully but without guarantee. DEVDIEM gives you and your tax advisor clean records.
Your data stays yours
DEVDIEM is “local-first”: trips and profile are stored on your device first and synced encrypted with your account. Your location is used only to detect trips and is never sold to third parties. You can delete your account and data completely in the app at any time.
DEVDIEM does not replace tax advice. All calculations are made carefully but without guarantee.
More questions or need support?
Write to us at support@devdiem.com – in English or German.