Alongside implementing and supporting software from well-known manufacturers, our own developers build a wide range of software products for very different fields of use.
Mailoplex, Remaxia, Casenda, SubBaseApp, Gastella, Kuvert, Aliefa, Acurina and NovumPDF are examples of our own developments. These products come from our own design and engineering, and our team maintains, refines and extends them continuously.
This is how we combine many years of IT experience with innovation of our own, creating software that we shape ourselves and keep developing.
Developed in Cologne Your data stays with you One contact person for software and IT
At a glance
The products in detail
If you commission software, you want to know what you will get at the end. Our products show how we work: deep subject knowledge, restrained technology, and the data kept where the client wants it.
An Exchange-compatible mail server with email, calendar, contacts and tasks. Outlook, phones and webmail connect as they would to Exchange – without a Microsoft server licence and without retraining. The servers are in Germany; we handle setup, migration and operation. Built for businesses whose Exchange 2016 or 2019 no longer receives security updates, or that do not want to move to the Microsoft cloud.
Outlook for Windows and Mac, iPhone and Android connect without add-ons
Shared mailboxes such as info@, shared calendars and meeting scheduling
Data centre in Nuremberg, encrypted backup every night, data processing agreement under Art. 28 GDPR
Migration from Exchange or Microsoft 365 – domain and email addresses stay the same
Management software for rental properties, developed for private landlords, small property managers and property management companies. The guiding principle is traceability: every figure comes with its origin. Eight areas work together – income, expenses, bank statements, service charges, tenancy agreements, payment reminders, tax documents and client management with access rights.
Service charge statements with meter readings and apportionment by heating degree days
Anlage V (German rental income tax form) and certificates under § 35a EStG (German Income Tax Act) generated from your existing data
Runs on your own server – no third-party cloud
One price, regardless of the number of units managed
From quotation to DATEV batch in one system. Casenda brings master data, costing, invoicing, stock, receipts, banking and reports together in a single database – no Excel islands alongside the accounts, no double data entry, no switching between paper and systems between site and office. Fourteen work areas in one interface, designed for construction and civil engineering work rather than bent to fit from retail.
Item master with 3,000 items across ten trades – unit, price and stock right in the costing
One click turns the quotation into an invoice; bank statements are matched with allocation suggestions and split postings
DATEV posting batches, advance VAT returns with ELSTER field codes, profit and loss statement under § 275 HGB (German Commercial Code) and fixed-asset schedule
Runs on your own server – delivered as a container, used in the browser, with nothing to install on workstations
Site software for sewer, road and cable civil engineering. Items are located by chainage rather than by floor – the typical construction app comes from building construction and has no concept of a route. Permits are tracked with a traffic-light deadline indicator, inspection reports follow the relevant procedure, and site measurement and billing under the VOB (German construction contract rules) sit in the same dataset.
Catering software for caterers and party services. Enquiry, quotation, food and drink costing, service staff and equipment all in one place – instead of in spreadsheets, notes and three separate programs.
Management software for event venues with several function rooms. Room plan, quotation, function sheet and invoice are all attached to one event: anything entered once appears on every document produced afterwards. If the number of covers changes, every line item is recalculated – including tax, split between 7 and 19 per cent. Kitchen, service and technical staff each get their own extract from the same function sheet. Invoices are locked in line with GoBD (German principles for proper electronic bookkeeping), e-invoices are produced as XRechnung or ZUGFeRD, and your tax adviser gets a DATEV posting batch. Runs in the browser, with nothing to install.
Animal records, adoptions from first contact to follow-up visit, foster homes, veterinary care, transports, sponsorships, members and donations in one system. Seventeen areas share the same dataset, so a vet's invoice does not have to be entered three times. Runs in the browser.
Adoption process with applicant questionnaire, pre- and post-adoption visits – returns included
Dedicated data protection area: consent per channel, retention periods, subject access requests and anonymisation
Animal profiles for the association's website, with a WordPress interface
Rule-based assistance without an external AI service – nothing is transmitted
Practice software for Egypt and the Middle East: reception, the patient record, twelve specialties, prescriptions and the cash desk in one web app. One record per patient across all specialties – the dentist and the cardiologist see different forms but the same patient. Runs in the browser, in Arabic, English and German.
Twelve specialties with their own forms, trends and printed reports – from the tooth chart to an audiogram per ear
Arabic right-to-left from the first screen; each user picks their language, and the printing language is set separately
A diagnosis aid that names its guideline and expands the quotation – the doctor makes the diagnosis, the software inserts nothing by itself
Practices separated in the database, rights per area checked on the server, files encrypted with AES-256
A PDF editor that runs entirely on your own machine: edit text paragraph by paragraph, comment, fill in forms, sign digitally, redact. No user account, no telemetry, no file leaves the PC. For Windows, macOS and Linux. The product page is in German.
Digital signatures to the PAdES standard with a company certificate from the Windows certificate store or a signature card, with an optional RFC 3161 timestamp
E-invoicing: create and validate ZUGFeRD and Factur-X to EN 16931, read XRechnung
Redaction that genuinely removes content – also by pattern, such as IBAN or e-mail address – plus AES-256 password protection and metadata cleaning before sending
MSI package for Intune, Group Policy and SCCM, silent installation, and a portable version needing no admin rights
NovumPDF in detail
The difference
Why an IT service provider develops its own software
It is unusual – and it has consequences for you as a client, both good ones and limitations.
Software and IT from a single source. When the application gets stuck, nobody has to work out whether the program, the server or the network is to blame. We see all three layers.
Your data stays with you. You decide where your data lives: most of our applications can run on your own server, NovumPDF runs entirely on the individual computer, and we operate Mailoplex ourselves in a data centre in Germany. No obligation to use a third-party cloud, no access by a provider you do not know.
Changes are possible. With a standard product from a large vendor, a special request is hopeless. With us, it is a question of effort – you talk to the people who wrote the source code.
We are a small vendor. Honesty requires us to say so: we do not have the development team of a large software company. In return, you do not go through a hotline – you reach someone who knows the program directly.
The way out stays open. Your data belongs to you and can be exported in full at any time. A client who stays because they cannot leave is not a satisfied client.
Frequently asked questions
What we are often asked
Who is Mailoplex for?
For small and medium-sized businesses that work with Outlook and need shared calendars and shared mailboxes, but no longer want to run their own Exchange server and do not want to move to the Microsoft cloud. Switching is most urgent where Exchange Server 2016 or 2019 is still running: neither has received regular security updates since 14 October 2025, and the extended updates ended on 14 April 2026.
Outlook, the phones, the domain and every email address stay. We handle the migration – more on the Mailoplex page.
Who is SubBaseApp for?
For companies in sewer, road and cable civil engineering. The common construction documentation tools come from building construction and locate defects on a floor plan – in civil engineering there is no floor plan, but a route, a chainage and a stack of permits with expiry dates.
The application is being developed together with a civil engineering company from the Rhineland. Its workflows come from the construction site, not from a specification document. The extensions coming next are listed in the roadmap on the product page.
Who is Gastella for?
For catering businesses and party services – from the small business supplying company parties to the operation with its own kitchen and a permanent service team. The thread is always the same: an enquiry comes in, it becomes a costed quotation, then food, staff and equipment are planned, and at the end there is an invoice your tax adviser can process without follow-up questions.
It is particularly worthwhile if quotation, costing and invoice are currently produced in three different programs and staff rotas live on scraps of paper.
Do I need a managed IT services contract to use the software?
No. Our applications can be used regardless of who looks after your IT. If both are with us, however, troubleshooting is considerably quicker when something goes wrong – nobody has to mediate between the software vendor and the IT service provider.
Where do the applications run?
That depends on the application. Remaxia, Casenda, SubBaseApp, Gastella and Aliefa can run on your own on-premises server or in an environment of your choice. NovumPDF runs entirely on the individual computer – no server, no cloud. We operate Mailoplex for you in a data centre in Nuremberg; your contracting party is INFONET Computer GmbH in Cologne. For Kuvert and Acurina we discuss operation during the demo. There is no obligation to put data into a third-party cloud – with tenancy agreements, statements and receipts in particular, that is the deciding factor for many businesses.
Can we see the software first?
Yes. We show it to you using your own examples, not a tidied-up demo database. A demo takes around an hour and costs nothing.
What happens if we need something the software cannot do?
Then we talk about it. Some things are a setting, some are an extension, and some we turn down because they would make the product worse for everyone else. What we do not do is pretend that everything is possible.
Further reading
Related articles
If you are not yet sure whether standard software or custom development is the right way to go.
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