One payment
CHF 550 once, instead of a monthly fee that never stops.
No subscription
PDR software without a subscription — pay once, use without limits.
A perpetual licence for CHF 550 (≈ EUR 580, excl. VAT) — no expiry date, no monthly fees, no cost per additional user. Offline on Windows and Android; your data stays with you.
What you get out of it
No expiry date
The licence does not run out. There is nothing to renew and nothing to cancel.
No per-user cost
Unlimited users per licence, no extra cost per technician.
Works offline
No cloud obligation. The app keeps working locally even when the connection drops.
Your data stays with you
On your device or your NAS — no vendor cloud, no telemetry.
Minor updates included
Optional insurance list updates may incur a small fee.
How it works
Step 1
Try it for 30 days
The full feature set, no sign-up and no credit card — the trial ends by itself.
Step 2
Request a licence, receive the invoice
Fill in the form; the invoice usually arrives within 24 hours, without Swiss VAT for EU companies with a VAT ID.
Step 3
Enter the licence, carry on
Once payment arrives, enter the licence details under Settings; everything from the trial stays.
Every feature in this area
- Windows 10/11 and Android 10+ — PC, laptop, Windows tablet from 10 inches and Android tablets.
- Sync over a shared work folder — NAS, OneDrive or Synology Drive between your Windows devices — you decide where the data lives.
- Device overview in the work folder — Settings → Storage shows when the other devices were last active.
- Android tablets run standalone — their own local database with the full feature set, without shared-folder sync.
- Full backup as a ZIP — with or without photos, locally on your device.
- Smart restore — no duplicates; photos are carried over.
- Audit trail with a SHA-256 hash chain — every entry cryptographically linked to the previous one.
- Automatic document versions and PDF snapshots — on every status change.
- Audit trail export as JSON — with SHA-256 verification.
- 7 app languages — German, French, Italian, English, Dutch, Portuguese and Spanish.
From the app
- Dashboard — jobs at a glance
- Settings — tariff tables & hail
- Backup, sub-import & demo data
- Smart restore
Cost comparison
Show the comparison with subscription software
5-year cost comparison
| Feature | Typical subscription software | PDR Kalk |
|---|---|---|
| Licence model | Monthly subscription | One-time |
| Setup fee | Yes | No |
| Additional user fees | Yes | No |
| Cloud-based | Yes | No — local |
| Internet required | Yes | No |
| Cost year 1 | EUR 1,399 (incl. setup fee) | CHF 550 |
| Cost year 2 | EUR 1,100 | CHF 0 |
| Cost year 3 | EUR 1,100 | CHF 0 |
| Cost year 4 | EUR 1,100 | CHF 0 |
| Cost year 5 | EUR 1,100 | CHF 0 |
| Total after 5 years | EUR 5,799 | CHF 550 |
Save thousands of CHF over five years compared to subscription-based systems.
All prices exclude VAT. Optional feature enhancements or insurance updates may be offered for a small fee. All comparison figures are based on publicly available pricing information (as of spring 2026).
Why PDR Kalk?
| Feature | PDR Kalk | Typical subscription software |
|---|---|---|
| One-time payment | PDR Kalk | Monthly |
| Works offline | PDR Kalk | Cloud |
| Direct insurance workflow | PDR Kalk | No |
| Subcontractor workflow | PDR Kalk | No |
| Analytics dashboard (BI) | PDR Kalk | Extra charge |
| Multi-device via your NAS | PDR Kalk* | Cloud only |
| QR photo upload from phone | PDR Kalk | No |
| QR invoice | PDR Kalk | Rare |
| ZUGFeRD/Factur-X e-invoice | PDR Kalk | Extra charge |
| 7 languages | PDR Kalk | DE only |
| Your data belongs to you | PDR Kalk | On third-party servers |
| Native on Windows & Android | PDR Kalk | Cloud only |
| Unlimited users per licence | PDR Kalk | 1 user (more at extra cost) |
| Tamper-evident audit trail (SHA-256) | PDR Kalk | Rare |
| DATEV / accounting export | PDR Kalk | Extra charge |
| Camera capture in-app | PDR Kalk | No |
| Courtesy car rental contract & handover protocol | PDR Kalk | No |
| AI scan: registration & VIN (optional) | PDR Kalk | No |
* This feature is only supported on Windows devices.
FAQ
Frequently asked questions
What workshops most often want to know before they buy.
It is a perpetual licence: paid once, with no expiry date and no monthly fees. The “about CHF 9 per month” figure is only an illustration spread over five years — nothing falls due afterwards.
CHF 550 one-time, excl. VAT (≈ EUR 580). No setup fee, no running costs. EU companies with a valid VAT ID are invoiced without Swiss VAT (reverse charge).
Minor updates are included. Optional insurance or tariff list updates may incur a small fee. What is new is shown under “What's new” in the app and on the updates page of this website.
Fill in the “Buy a licence” form further down. You usually receive the invoice by email within 24 hours — no credit card needed. Once payment arrives you receive your licence details and unlock PDR Kalk with them.
30 days with the full feature set, a direct download with no sign-up and no credit card. The trial ends by itself. On first start there is a one-off online activation (technical data only, see the privacy policy); after that the app works offline. One trial per device.
Unlimited users per licence and no cost per technician. Technicians can be assigned per panel. Subcontractors and partner workshops work in their own installation and therefore need their own licence.