closed-source

the software was entirely closed-source, preventing any external modification.

we decided against using closed-source software due to security concerns.

their business model relies on selling licenses for closed-source products.

the company maintains a closed-source codebase to protect its intellectual property.

open-source alternatives are often preferred over closed-source options.

reverse engineering closed-source software can be legally challenging.

the project started as closed-source but later transitioned to open-source.

we need to evaluate the risks of using this closed-source library.

the advantage of closed-source is often better support from the vendor.

many developers prefer the transparency of open-source over closed-source.

the team investigated the possibility of migrating from closed-source to open-source.