CAD software – Genuine licences

Buy genuine CAD software licences from Mr Key Shop: fast digital delivery, free technical support in English

Buy a CAD software licence: the right tool for every stage of the project

Choosing professional CAD software means choosing the tool that turns an idea into a drawing someone can build from, a model someone can check, a sheet you can hand to a client or a site. The choice is never neutral: the file format decides who you can work with, the feature set decides what you can produce and how quickly, and the licence type decides what it costs you over the years you keep using it.

The Mr Key Shop CAD catalogue covers 2D technical drawing, 3D solid modelling, parametric design, industrial and automotive design, BIM workflows and architectural design, with genuine licenses, digital delivery and free technical support.

How to choose CAD software: the three questions to ask yourself

Before looking at prices, it’s worth answering three questions, because each one rules out half the catalogue.

• What are you delivering? Dimensioned drawings and working drawings are 2D work. A component to be sent to production, a building to be coordinated with services and structures, or a product to be rendered are 3D tasks.
• Who do you send your files to? If DWG files come back modified by others, compatibility is more important than any other feature. If you produce and deliver them as closed files, a compatible CAD programme will do the job without any problems.
• How long do you need it for? A six-month project and a tool you’ll use for eight years lead to two different licensing options, and the difference in total cost is significant.

2D CAD or 3D modelling: which do you need?

2D drawing thinks in lines, dimensions and layers: it is the work of anyone producing plans, sections, elevations and construction details. It is faster, universally compatible and enough for most professional documentation. AutoCAD LT and ZWCAD Standard exist for exactly this, and they cost less because they do nothing else.

3D modelling builds a model of the object, and views, clash checks, bills of materials and renders are then derived from it. In exchange it asks for longer modelling time and a steeper learning curve. Here the program is not chosen by difficulty but by sector: Inventor and Fusion 360 for mechanical work, Revit for buildings, Civil 3D for infrastructure, Rhino for free-form surfaces.

Many professional CAD programs cover both levels, and the edition you choose determines how much 3D depth you get. If you are not sure which side you are on, start with 2D. Moving up to 3D later costs less than buying a tool that sits unused.

Perpetual or subscription CAD license: which works out cheaper

This is the difference that weighs most over time, and it is also the one that divides the vendors.

• Autodesk sells by subscription only. AutoCAD, Revit, Inventor, Civil 3D, Maya, 3ds Max and the Collections are bought for a defined term and renewed. In exchange you get every version update and support for the whole period.
• ZWCAD and Rhino also sell perpetual licenses. You pay once, the program stays yours and keeps working after support ends, which keeps your DWG archive usable. Major version upgrades are bought separately when you need them: for ZWCAD there are annual maintenance packages in the catalogue.

If the software is at the centre of your daily work and you genuinely need the newest version, a subscription is coherent. If what you need is a stable tool that does one job for years, a perpetual CAD license costs less over the long run.

Which CAD software to choose, based on your usage profile

Areas of application for CAD software

Alternatives to AutoCAD: ZWCAD and Rhino

Not everyone needs AutoCAD, and it is worth saying so plainly. Of the AutoCAD alternatives in the catalogue, two cover almost every case.

ZWCAD is the most direct substitute. The interface and commands follow AutoCAD closely, it works natively in DWG and it supports LISP and the APIs, so the customisations and blocks you already use usually keep working. Standard covers 2D drawing, Professional adds 3D. It is sold as a stand-alone perpetual licence, and it is the choice of anyone who wants to stop paying a subscription without changing how they work.

Rhino does not replace AutoCAD: it models differently. It works with NURBS surfaces and handles geometry a parametric CAD struggles to describe, which is why it is common in product design, jewellery and form-driven architecture. Perpetual licence, with DWG import and export.

If what you need is a CAD program for the home, or for interiors without professional requirements, Ashampoo covers basic architectural and home design at a much lower cost.

Free CAD software: when it is enough and when it is not

Search for CAD software and you will find serious free options: FreeCAD, LibreCAD, QCAD in its free edition, nanoCAD Free and Onshape's free plan. These are real tools. They are good for learning, for practice and for finishing personal projects, and anyone telling you otherwise is selling something.

Two things are worth knowing before you rely on one for paid work.

• The licence. Several free plans explicitly exclude commercial use, and some make the projects you upload publicly visible. If you invoice for the work you produce, you need a commercial licence, whether that licence is free or paid.
• The DWG. This is where most free CAD stops. They read and write DWG through conversion, and in the exchange of files with practices, contractors and public bodies that turns into layers that shift, dimensions that change and blocks that break. As long as you produce and deliver closed files it can be fine. The moment your DWGs come back edited by someone else, native compatibility stops being a detail.

The useful question is not what the program costs. It is what an hour costs when you spend it rebuilding a drawing that arrived broken.

The DWG format: the industry standard for technical drawing

The DWG format is AutoCAD’s native format and the de facto standard for exchanging CAD files worldwide. Architects, engineers, clients, contractors, suppliers and public bodies almost all work with DWG files. Choosing CAD software with native DWG compatibility – which reads and writes DWG files without the need for intermediate conversions – eliminates the main sticking point in file exchanges with clients and collaborators. CAD software with native DWG compatibility can be recognised by the absence of import errors, the complete preservation of layers, blocks, text styles and dimensions, and the ability to share files directly without resorting to neutral formats such as IGES or STEP.

How to recognise a trustworthy CAD reseller

Anyone shopping for a discounted CAD license runs into the same question sooner or later, and on engineering forums it is asked in exactly these words: what's the catch? It is the right question, and it has concrete answers. Before you buy, wherever you buy, check five things.

1. What kind of licence you are being sold. Commercial, Educational, perpetual, subscription: in writing, before you pay. A listing that will not say has a reason not to.
2. That activation goes through the vendor's own channels. The software is downloaded and activated from the publisher's servers, not from a file hosted by the shop.
3. That you get an invoice. It is your proof of purchase and the document you need if anyone ever queries the licence.
4. That there is a way to reach a human. Activation questions are normal and usually trivial to resolve. A seller with no support channel is telling you in advance what happens when something goes wrong.
5. That there is a money-back guarantee. It is the only part of the promise that costs the seller something if it turns out to be untrue.

One point deserves attention because it is the most misunderstood: Educational licences cannot be used for professional work. They cost less because they are meant for personal and academic use. If you invoice for work produced with that software, you need a Commercial licence, and whoever sells it to you should say so.

You can read how we source and verify what we sell on our technical audit and legitimate software licenses pages.

CAD brands in the Mr Key Shop catalogue

Why buy professional CAD software on Mr Key Shop

Mr Key Shop is an authorised reseller of original software licences with immediate digital delivery. Every licence is authentic, activatable through the official manufacturer channels and backed by free Italian technical support from purchase through activation. Secure payments via PayPal (also in 3 instalments), Stripe, Amazon Pay, Apple Pay, Google Pay and credit/debit cards, all protected with SSL encryption. Mr Key Shop is Trusted Shops certified with an “Excellent” Trustpilot rating and purchase protection up to €2,500.

CAD software runs on Windows, and the quality of the platform it operates on is the foundation of every stable working session. The Windows 11 Pro licence provides optimisations for managing large files, hardware security with Secure Boot and TPM 2.0, and enterprise features for managing design workstations. For workstations still running Windows 10, the Windows 10 Pro product key guarantees a stable and long-lasting platform compatible with all major professional CAD applications. For managing quotations, project reports, presentations and technical documentation on the same CAD workstations, the Office 2024 Professional Plus licence covers Word, Excel, PowerPoint and Access, the complete suite for professional productivity. For distributed studios and teams collaborating on project files across multiple locations, the Microsoft 365 Business Standard subscription adds Teams, SharePoint and 1 TB of OneDrive for secure DWG and project model sharing. The confidentiality of project files whilst transmitting them to clients and suppliers is protected by NordVPN, traffic encryption essential for sending confidential technical drawings over external networks. For producing technical PDF documentation, project reports and calculation sheets, Nitro PDF offers PDF conversion, editing and digital signing with a lifetime licence. To protect and restore project files on every CAD workstation, AOMEI Backupper Workstation provides incremental backup and bare-metal recovery, the level of project data protection every technical studio should have. Every purchase on Mr Key Shop is 100% digital: no shipping, no packaging, only immediate email delivery.