What you need to know about software license

What is a software license, and why does it matter to users?

A software license is a legal contract that sets the rules for how you may use a piece of software.

• It protects the developer’s work and limits how the product gets used.
• It spells out your duties, your costs, and your legal limits as a user.
• Most licenses fall into two groups: proprietary software and open-source software.

Today, almost every organization uses software to run and support its business. So a clear software license matters to everyone who installs a program.

Software usually covers a company’s core business processes. It also supports communication between staff, customers, clients, vendors, and suppliers.

Most software products come with a software license that you need to activate.

In many cases, you must also accept a “terms and conditions” agreement first. Only then can you download, install, and use the programs.

For users, it helps to know the basics of a software license. As a result, you understand your duties and stay within the legal terms.

What is a software license?

A software license is a written contract. It sits between the creator or vendor of an application, source code, or related product and the end-user.

Software licensing exists to protect the intellectual property of its creators, the software developers. At the same time, it manages any claims that may come from its use.

It also helps to know that a software license has many types. Each one has its own restrictions, terms, support deals, and costs. Because of this, reading the fine print is worth your time.

For the end-user, a software license holds legally binding terms about how the software is shared and used. These teams often work much like software development outsourcing partners, so the license also sets out warranties, liabilities, and install rights.

How software licenses work

Users who buy software must usually accept an End User License Agreement (EULA).

A EULA is a written contract. It sets the legal terms of the relationship between the provider (licensor) and the end-user (licensee).

For cloud-based apps, and for software as a service (SaaS), the software license usually covers the following:

• Period of the agreement
• Monthly or annual charges (per end-user)
• Terms of cancellation of the agreement
• Recovery of any specific changes done (if canceled during the agreement)

Meanwhile, the cost of a software license depends on a few things. For example, it depends on the type of software, the cost of the software development, and how it reaches the user. To compare fees, it also helps to know the common SaaS pricing models.

Importance of software license agreement

A software license agreement is a set of rules and permissions. In short, it dictates how you can use a piece of software.

These agreements are sometimes called software license models. As a result, each one comes in a slightly different form. Each sets out the terms under which the software can be used legally.

License agreements protect developers in a simple way. First, they set the limits of use. Next, they stop unauthorized actions. They often include license notices too. These notices state the terms users must follow, so the rules stay clear.

Understanding a software license agreement is useful for both sides. Because of this, developers and users can both stay on the right side of the law.

2 main categories of software licenses

A software license usually splits into two groups: proprietary software and free and open-source software (FOSS). These two differ a lot, and much of the difference rests on copyright law.

Proprietary software license

A proprietary software license aims to keep the source code closed. For this reason, reverse engineering is banned under its terms.

In this group, users only get an operational code. As a result, they cannot reuse or change the source code. Clear rules like these also make software testing and support easier to manage.

Free and open-source software (FOSS)

FOSS is the opposite of a proprietary license. It gives users the real source code. So it lets users reuse and remodel the software’s functions. It also lets end-users inspect the code in full.

Still, both types share some ground. For example, warranties, warranty disclaimers, limits of liability, and shared duties appear in both.

The heart of an open-source license is sharing and new ideas. Because of this, a developer can improve the software and help build a better product over time. Many teams even fold these ideas into their own custom software solutions.

On the other hand, software with no license is often seen as public domain software or private unlicensed software.

5 different types of software licenses

Let’s break down the five types of software licenses. Knowing them early in the software development life cycle helps you pick the right one.

1. Permissive licenses

Permissive licenses are also known as Berkeley Software Definition (BSD) or Apache. They rank among the most popular open-source software licenses.

There are many variants of a permissive license. Each variant has its own restrictions, copyrights, and rules. As a result, its use varies by variant (private or commercial) and by other terms.

2. Public domain licenses

A public domain license lets anyone use and change software freely. It also lets users reuse or fold the code into their own projects or apps.

However, there is a catch. Public domain licenses may not follow the best coding practices. So they may not meet the usual standards for secure software.

One more thing is worth noting. Software with no set license terms is not always public domain code.

3. Lesser General Public License (LGPL)

An LGPL software license gives developers a useful right. They can link their product to open-source libraries inside their software.

They can also license the resulting code under other license types. For example, this applies when they compile or link projects in an LGPL-licensed library.

4. Proprietary licenses

Proprietary software licenses protect the developer from unauthorized use. In practice, they are restrictive by design.

Such a license limits what end-users can do. As a result, they cannot easily modify, share, or reverse engineer the software.

This keeps users tied to the end-user license agreement. So unauthorized users cannot use, copy, share, or change the software.

5. Copyleft licenses

A copyleft license is also called a reciprocal or share-alike license. It lets developers change and share the licensed code as part of a software project.

However, one rule applies. Any changed or derivative code must also ship under a similar or identical software license.

Frequently asked questions about software licenses

What is the main purpose of a software license?

A software license protects the creator’s intellectual property. It also sets clear rules for how you may install, share, and use the program.

What is the difference between proprietary and open-source licenses?

A proprietary license keeps the source code closed and blocks changes. An open-source license shares the code and lets you reuse or improve it.

Do I need to read the EULA before installing software?

Yes. The EULA sets your duties, limits, and rights as a user. Reading it first helps you avoid breaking the terms later.

Is software without a license free to use?

Not always. Unlicensed software may be public domain, or it may be private and protected. So it is safer to check before you use it.

Key takeaways

• A software license is a legal contract that controls how you use a program.
• It protects the developer’s rights and spells out your duties and costs.
• Licenses split into two main groups: proprietary and free and open-source (FOSS).
• Common types include permissive, public domain, LGPL, proprietary, and copyleft.
• Always read the EULA first, so you understand the terms before you install.