JRebel vs. TeamCity

I recommend JRebel for Java developers, it will remove the time needed for redeployment, it will increase the focus on the task at hand (without being distracted by the redeployment) and will make them happier. I recommend JRebel for Java Development Managers, they should purchase this for their teams - it will increase productivity, decrease the product's time to market, and it will save money for the company. The ROI can be calculated upfront and presented to higher level management for approving this, if needed.

Incentivized

TeamCity is well suited for an organization using continuous integration, meaning you release code to production often, and an agile project management system. There are free versions available for small teams and enterprise versions available for large teams with many different builds. TeamCity is probably overkill for basic e-commerce or blog website builds that do not require much development after the initial launch

Incentivized

• Removes the time needed for redeployments of the source code - improves productivity, time to market, and saves money.
• Easy to install
• License renewals - the sales department reaches out to you long before the licenses expire so you can have time to get your approvals.
• Analytics and reporting - it will show you the time saved by JRebel and even the ROI, if you input the average hourly cost of a developer.

Incentivized

• Fully customizable build process. Each step of the build process can be parameterized and customized to address specific needs of particular applications. This allowed us to easily convert from a custom VM-based environment to our current Docker-based environment.
• Manages large numbers of build agents seamlessly. This allows us to run multiple builds on many different applications in a most efficient manner.
• Build steps can be managed in an arbitrary manner, allowing some parts of the process to proceed in parallel while restricting others to depend on completion of all relevant steps.

Incentivized

• Launch times are where JRebel is slower than Instant Run.
• Sometimes, it has incompatibilities with how you wrote something and causes compile failures, but Zero turnaround is quick to respond.

Incentivized

• It is not plug and play thing
• Need more specific configurations for smaller projects as well
• Online help is less available
• Basic implementation is easy but I think feature add on can be complex as it involve some language knowledge as well.

Incentivized

The performance of JRebel is great. It is enabling the Java team to do hot re-deployments and it has to be transparent and fast for the user, otherwise the whole purpose of reducing wasted time with re-deployments doesn't make sense. Also the User Interface for License Server management and analytics loads fast and the navigation through pages is quick.

Incentivized

TeamCity runs really well, even when sharing a small instance with other applications. The user interface adequately conveys important information without being overly bloated, and it is snappy. There isn't any significant overhead to build agents or unit test runners that we have measured.

Incentivized

Hot code swapping doesn't have many players...it's mainly JRebel. We use JRebel a lot in our backend code development where it minimizes our development cycle (20min down to 30sec). For Android, the competitor is Android Studio's Instant Run which works fairly well now. For smaller apps, Instant Run is faster deploying but needs more full builds. With JRebel, you hardly ever need to do a full build.

Incentivized

Jenkins relies on being open source as the primary driver for its success. This low cost is a huge factor for many companies, both small and large. The professional, free tier of TeamCity offers a huge amount of growth before ever needing to pay anything. I personally also find the user experience of TeamCity to be much better, both from a look and feel, as well as from an out-of-the-box feature set perspective. The big selling feature of ADO is its native integration with Azure. TeamCity integrates very well with out-of-the-box .NET support and greatly simplifies our use of another diverse tooling outside of the Microsoft ecosystem.

Incentivized

• It sped up the developing time, and time is money for the company.

Incentivized

• TeamCity was a key contributor to our organization's adoption of Agile.
• TeamCity made it possible to KILL "It works on my laptop" conversations with Developers. If it does not compile in TeamCity - the project is not deployable. TeamCity's easy to use interface made it possible to quickly adopt a "Deploy Only from TeamCity" policy, further ensuring TeamCity Builds were the gold-standard for well-configured source code.

Incentivized