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An invoicing software that thinks with you

Fast, intuitive and web-based – weclapp’s invoicing software.

30 days free. Automatic cancellation.

Overview of the most important modules

Clear CRM

Create leads, convert them to customers, manage contacts und access the customer record at any time you want.

Easy invoice creation

weclapp guides you through the entire invoicing process. Customize invoice templates, send and archive them fully automatically.

Open items management

Do not lose track of open items with all the invoices, sales orders and offers. In the weclapp cloud solution you will see everything clearly.

Managing customers made easy


Store all relevant contact data of your customers in the CRM.

360° customer view

In the customer history you can store all details belonging to every single customer.


Create meaningful campaigns from within weclapp and send them directly to potential customers.


Recognize potential early and make the best possible use of it thanks to different qualification statuses.

Supporting invoicing process

Individual design

Specify the position of all text and address fields, define individual terms of payment and round up your design with your company logo.

Sending via email

After the creation of an invoice you can simply print it to send to your customers via mail or choose "Send as email" in the workflow.

Article management

Enter your articles and services to transfer them to your invoices later. This way, no mistakes will happen when listing prices.


weclapp contract management handles creation and dispatch of recurring invoices for you automatically. In addition, reminders optimize the payment process.

Open items always at view

Payment reminder

weclapp checks for you if open invoices have already been paid. If the payment is not received on time, you can send a payment reminder and start a dunning run with your own reminder template.


Partial payments or invoices are no problem anymore. weclapp supports you with the settlement. The final invoice is created automatically with the last installment.

DATEV connection

The integrated DATEV interface facilitates transfer of receipts to your accountant as DATEV export.

Individual invoice templates

Customize your invoices freely according to your wishes. Match the design to your company branding and stand out from the crowd. This is how professional invoicing works today.

More invoicing features

Collective invoices

A collective invoice enables billing several orders in one invoice.

Address book

Easy address management using Microsoft Outlook and Google sychronisation.


Share calendars with your colleagues for easy arrangement of appointments, e.g. in the form of a vacation calendar.


Communicate with your colleagues easily in the company's internal network thanks to the chat function.


Spread work evenly and track performance easily with the help of the work load view.


Manage tasks from nearly everywhere at any time using any terminal device.

Time tracking

Track work and project hours conveniently and precisely with the online time tracker.


The secure storage for location-independent access by any device.

Mobile invoicing software – experience weclapp on all devices

Access invoices any time from everywhere! Regardless of the device: weclapp is optimized for usage with all common web browsers.

The very invoicing software for your company

Cloud CRM

  • ✔ Contact management
  • ✔ 360-degree customer file
  • ✔ Tasks calendar
  • ✔ Email automation
  • ✔ Telephone integration (CTI)
  • ✔ Opportunities and campaigns

ERP Services

Perfect Fit!

Cloud ERPTrade