Coretool E-Rechnung Pro

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Coretool:

About

Coretool is a browser-based invoicing application for German businesses, freelancers, sole traders, tradespeople, and small service businesses. Users can create and manage quotes and invoices, including XRechnung and ZUGFeRD e-invoices, track customers, send payment reminders, and organize appointments. The app supports GiroCode QR codes, digital quote signatures, and validation of e-invoice documents through its REST API. API-based workflows can connect with automation tools such as Make, Zapier, and n8n; availability of some platform-specific modules may depend on approval. Calendar feeds can be added to Google, Apple, or Outlook calendars. The optional Kalkulations-Assistent supports project estimates, material and labor calculations, and quote creation. Coretool runs in a web browser without local installation. Its free plan allows three invoices per month; Solo costs €9/month plus VAT and can be canceled monthly.
E-Rechnung Pro:

About

E-Rechnung Pro is a browser-based e-invoicing tool for freelancers, small businesses and accounting professionals that need to prepare ZUGFeRD or Factur-X documents. Users can create hybrid PDF/A-3 invoices with embedded XML in BASIC, EN 16931 and EXTENDED profiles, convert existing PDF invoices into hybrid files with OCR-assisted extraction for scans, and validate ZUGFeRD, Factur-X and XRechnung documents against EN 16931 rules. A document area provides history, status and search for invoices and validation results. The service runs online without installation and supports English, German, French and Ukrainian interfaces. Users can review validation messages and download files for further handling in their existing workflows.
Coretool:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
E-Rechnung Pro:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Coretool:

Audience

Businesses, freelancers and sole traders in Germany that need to issue e-invoices (XRechnung, ZUGFeRD)
E-Rechnung Pro:

Audience

Freelancers, small businesses and accounting firms in Germany and the EU that send or receive e-invoices.
Coretool:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
E-Rechnung Pro:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Coretool:

API

Offers API Supported
E-Rechnung Pro:

API

Offers API Not Supported
Coretool:

Screenshots and Videos

No images available
E-Rechnung Pro:

Screenshots and Videos

Coretool:

Pricing

€0/month
The free plan includes up to 3 invoices per month. Solo costs €9/month plus applicable VAT and can be canceled monthly.
Free Version Supported
Free Trial Not Supported
E-Rechnung Pro:

Pricing

€0/month
Beta access is free with unlimited invoice creation, PDF conversion and validation through December 31, 2026. After the beta, the Free plan includes up to 10 invoices per month and 10 validations per day. Pro is €19/month, and VIP is €49/month. Paid plans include a 14-day free trial.
Free Version Supported
Free Trial Not Supported
Coretool:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Review this Software
E-Rechnung Pro:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Coretool:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
E-Rechnung Pro:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Coretool:

Company Information

Coretool
Germany
coretool.de/en
E-Rechnung Pro:

Company Information

E-Rechnung Pro
Founded: 2026
Germany
zugferd.randomstar.org
Coretool:

Alternatives

E‑Rechnungs-Studio

E‑Rechnungs-Studio

Casserus UG (haftungsbeschränkt)
E-Rechnung Pro:

Alternatives

E‑Rechnungs-Studio

E‑Rechnungs-Studio

Casserus UG (haftungsbeschränkt)
Coretool:
E-Rechnung Pro:
Facturwise

Facturwise

Billio Software Services s.r.o.
Coretool:
E-Rechnung Pro:
Coretool:
E-Rechnung Pro:
xSuite

xSuite

xSuite Group
Coretool:
xSuite

xSuite

xSuite Group
E-Rechnung Pro:
rechnungswandler.de

rechnungswandler.de

rechnungswandler.de (Stefan Lausch)
Coretool:

Categories

E-Invoicing Supported
E-Rechnung Pro:

Categories

E-Invoicing Supported
Coretool:

Integrations

Apple Calendar Supported
Google Calendar Supported
Make Supported
Microsoft Outlook Supported
Zapier Supported
n8n Supported
E-Rechnung Pro:

Integrations

Apple Calendar Not Supported
Google Calendar Not Supported
Make Not Supported
Microsoft Outlook Not Supported
Zapier Not Supported
n8n Not Supported
Coretool:
Claim Coretool and update features and information
Claim Coretool and update features and information
E-Rechnung Pro:
Claim E-Rechnung Pro and update features and information
Claim E-Rechnung Pro and update features and information