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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.

About

From anywhere you have a computer and an internet connection, you can create a new invoice, send it to your client as a PDF attachment to an e-mail, or by post (yes, we'll post for you too!). It's easy to keep track of payments and overdue invoices, and reports show how you're performing month-to-month. Once you've tried painless billing you'll never go back. Your customers still expect a paper invoice, but don't waste time and money printing, stuffing envelopes, franking and posting yourself. Easy-to-understand plans that you can change from month to month. All you need is a web browser. Avoid cumbersome software upgrades - you always have access to the latest functionality. It's intuitive. It's smart. It's flexible. Choose any currency, set custom fields, choose your due date and set your terms. Your payment terms, footer etc. can all be saved as default to make creating an invoice even quicker next time.

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

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

Audience

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

Audience

Companies looking for an invoice solution

Support

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

Support

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

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

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

Pricing

$9.90 per month
Free Version Not Supported
Free Trial Not Supported

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:

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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

Training

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

Training

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

Company Information

Coretool
Germany
coretool.de/en

Company Information

Send Invoice
United Kingdom
sendinvoice.co.uk

Alternatives

E‑Rechnungs-Studio

E‑Rechnungs-Studio

Casserus UG (haftungsbeschränkt)

Alternatives

Nudge

Nudge

JM Studio LLC
xSuite

xSuite

xSuite Group
Psalm

Psalm

Jordan Labs Ltd
Facturwise

Facturwise

Billio Software Services s.r.o.

Categories

E-Invoicing Supported

Categories

Billing and Invoicing Features

Billing Portal Supported
Contact Database Not Supported
Contingency Billing Not Supported
Customer Portal Not Supported
Customizable Invoices Not Supported
Dunning Management Not Supported
Hourly Billing Not Supported
Invoice History Not Supported
Mobile Payments Not Supported
Multi-Currency Not Supported
Online Invoicing Not Supported
Online Payments Not Supported
Payment Processing Supported
Project Billing Not Supported
Recurring/Subscription Billing Not Supported
Service Ticket Billing Not Supported
Tax Calculator Not Supported

Integrations

Apple Calendar Supported
Google Calendar Supported
Make Supported
Microsoft Outlook Supported
Zapier Supported
n8n Supported

Integrations

Apple Calendar Not Supported
Google Calendar Not Supported
Make Not Supported
Microsoft Outlook Not Supported
Zapier Not Supported
n8n Not Supported
Claim Coretool and update features and information
Claim Coretool and update features and information
Claim Send Invoice and update features and information
Claim Send Invoice and update features and information