RGPSoft by Giampaolo Rossi

Stock Inventory Software

Calus in Italiano
Calus en Español
Calus en Français

Calus is no longer on sale, you can download the installation file, but it works only if activated with a serial code.
Our new warehouse software is MerciGest, available in both professional and free versions.

Download Setup File
Install our warehouse software and try it for free.

Not-activated version allows you to insert up to 250 items and 100 warehouse movements.


For a better experience with this software we recommend doing in order:
1. See the video tutorial 2. Read the F.A.Q. 3. Now Try yourself 4. If you like it buy it

Have you got any questions?
Before contacting us, see if we've already answered the question you want to do, in F.A.Q. webpage or Read help online
Technical Support

Have you tried Calus and now want to buy the serial code to activate the software?
Here's the web page of purchase.
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Here are the latest features included in the software:
Ver. 3.6 New list look and feel.
Ver. 3.7 Introduced print of the value of warehouse and improved the speed of loading data.
Ver. 4.0 The program now has fee to full use it.
Ver. 4.1 Search the product in the warehouse with the barcode reader.
Ver. 4.2 Insert notification message moving mouse cursor on product row.
Ver. 4.3 Print template for invoices without tax.
Ver. 4.4 Fixed some minor bugs and calculating the final sale price.
Ver. 4.5 Made various improvements and included handling items with barcode reader in orders.
Ver. 4.6 Entered the management of the barcode Code 39.
Ver. 4.7 Ability to manage multiple barcodes for each product like IMEI code of the smartphone.
Ver. 4.8 Initial stock in the product, information fields in order and customization foot of the bill.
Ver. 4.9 Additional information item only visible with click on the icon corresponding to its row.
Ver. 5.0 Products virtual list to manage millions of potential data and much more.
Ver. 5.1 Print average price in purchases and sales.
Ver. 5.2 Choosing the average price, weighted or last in product mouvement.
Ver. 5.3 Customizing the currency of the documents and printing base or document currency.
Ver. 5.4 Print the notes in the rows of the invoices in the warehouse.
Ver. 5.6 Added command to delete old inventory movements.

Some things to know:
Our stock management software is horizontal, as it say in the technical language, this means that it is a general-purpose application or for general use. The software on the market are almost all horizontal: Microsoft Windows®, Microsoft Office®, Adobe Photoshop® and many others. This means that we can not ask users to Microsoft® or Adobe® to insert ourselves a button here or a new window there, we have to use the software as is being proposed, that's the reason for the test, which we strong recommend to everyone to do a working simulation.
The program is still evolving for other usage in the future, in fact we receive many suggestions from our end users that in this time have helped to bring the software Calus to be more complete, while respecting the simplicity of use, real power point for this warehouse management.
The project Calus is not the continuation of the previous that is written in Access, in this case it is of a program written in VC++ which is issued
In the demo version there are limitations in the number of records that can be inserted, but not in the number of stations that can work together.
The operating system for which the software is distributed is Windows 10 or 11 desktop edition.

What would you like to be implemented in Calus?
Send us your suggestion in a completely anonymous way.
Send Suggestion


Each serial code allows you to turn on 1 workstation for the period of 1 year with assistance by ticket system.
To see the cost of each serial code you can open the menu "Program -> Activate" in Calus and press the button "Request", then follow the instructions.

Lastest News About Calus

01 July 2022 : MerciGest Professional First Release

First software version released. Among the main features we find the inventory value with the weighted average purchase price, the management of the reordering of products and the printing of invoices. As time goes by, we will keep releasing new upda...


08 December 2021 : Calus Annual no longer available

We inform you that the serial code to activate Calus annually will no longer be available, as the sale of the forever one will also end definitively on 31 December 2022. In this way we give the possibility to those who have the annual version to cont...


13 November 2016 : Currency and Documents in Calus

Available version 5.3 of Calus with currency management and ability to compile invoices and orders in a currency other than the base of the program. We have also included the usual supplier for each product and notes for both inventory items for orde...


15 May 2016 : Calus 4.9.9

Available upgrade to version 4.9.9 of Calus. In this new release you can buy the serial code to activate the software forever. You can find more information in the web page of the software.


06 February 2014 : Calus Upgrade

We have released the new version 3.4 of the software with important updates regarding the management of the prices with discounts and price rises for sale. As always you can download the free program from its


16 October 2013 : Suggestions of Development

We want to make it known that the suggestions that you send through our dedicated page, which you can find in our management software was not created to send requests for assistance or otherwise. We simply receive these notifications by you the users...


27 September 2013 : Importing Data in Calus

Many of them require a way to speed up data entry in Calus Plus, even by those who come from other management software. Our software uses any data source compatible with the track record and this data can be entered into an Access database (default)....


29 December 2012 : Calus 2014 - 1.2.7

Available upgrade to version 1.2.7 of Calus 2014. In this new release includes images to inventory items and the online help for the user. You can find more information in the web page of the soft...


02 December 2012 : Free Software for Warehouse

We have released version 1.2.5 of Calus 2014 our new free software for warehouse management. To download the software you can visit the page dedicated to software.


10 January 2012 : Application Warehouse Open Source

We have released the program for warehouse management Calus 2012, in a completely free open source under the GPL. To download the program just visit the page dedicated to the pro...


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