I'm using OutSystems to build an ERP system and a customer portal.
Software Test Analyst at a tech services company with 51-200 employees
Useful low-code tests but can't be used for behavioral-driven development
Pros and Cons
- "OutSystems' best feature is that you can build tests with the flow, so even the tests are made in the PDD framework in a low-code way."
- "The PDD framework can't be used for the behavioral-driven development way of working."
What is our primary use case?
What is most valuable?
OutSystems' best feature is that you can build tests with the flow, so even the tests are made in the PDD framework in a low-code way.
What needs improvement?
The PDD framework can't be used for the behavioral-driven development way of working. They're working on improving that, but it's taking a long time. OutSystems also doesn't have branching, which means if there's a production issue, it's not so easy to fix.
For how long have I used the solution?
I've been using OutSystems for a year and a half.
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What do I think about the stability of the solution?
OutSystems is stable.
What do I think about the scalability of the solution?
OutSystems is scalable.
How are customer service and support?
We've had good contact with OutSystems' consultants.
How was the initial setup?
The initial setup was straightforward.
What about the implementation team?
We used a team of OutSystems developers.
What other advice do I have?
I would advise anyone considering implementing this solution that you need a senior OutSystems developer to help your in-house developers because it can be quite hard to work with in the beginning. If you have a senior OutSystems developer who can help with best practices, then you're good to go. I would give OutSystems a rating of seven out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Master Collator at a media company with 1,001-5,000 employees
Effective, easy to use and set up, great community support but the technical support an price could be improved
Pros and Cons
- "We used almost all of the features, themes, styling guide, and approach components. They are useful in our applications."
- "We had some lagging issues under high data loads, and the solution needed to be customized to improve this."
What is our primary use case?
We use the product for developing applications.
How has it helped my organization?
It improved our output, mostly in the reactive and mobile applications we developed.
What is most valuable?
We used almost all of the features, themes, styling guide, and approach components. They are useful in our applications.
What needs improvement?
Technical support could be better, and out-of-the-box performance could be improved.
For how long have I used the solution?
We have been using OutSystems for five years.
What do I think about the stability of the solution?
We had some lagging issues under high data loads, and the solution needed to be customised to improve this.
What do I think about the scalability of the solution?
The solution is scalable.
How are customer service and support?
Technical support would get a three out of five, as there is some wait time involved and some solutions were not adequate. This is an area for improvement.
How would you rate customer service and support?
Neutral
Which solution did I use previously and why did I switch?
We previously used Darknet but switched to OutSystems because it offered some more tools and features.
How was the initial setup?
Setup was easy and there are a lot of forums to help, I would rate it five out of five in that respect.
What about the implementation team?
We had an in-house setup, requiring only one person.
What's my experience with pricing, setup cost, and licensing?
It depends on the use case, but we found the solution to be pretty expensive.
What other advice do I have?
Setup is easy, the solution is also easy to learn and there is a lot of community support on forums to help. Aside from the cost, OutSystems has been good for us. I would rate OutSystems a seven out of ten.
Which deployment model are you using for this solution?
Hybrid Cloud
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
Buyer's Guide
OutSystems
January 2026
Learn what your peers think about OutSystems. Get advice and tips from experienced pros sharing their opinions. Updated: January 2026.
881,082 professionals have used our research since 2012.
Deputy General Manager at HDFC Limited with 1,001-5,000 employees
Is stable and can be easily installed
Pros and Cons
- "It is a stable solution, and the initial setup is straightforward."
- "There are not enough resources on the market."
What is most valuable?
It is a stable solution, and the initial setup is straightforward.
What needs improvement?
I think the resource ecosystem could be improved. There are not enough resources on the market.
Multiple LDEV support would be great to have in the next release.
For how long have I used the solution?
I've been using OutSystems for three months.
What do I think about the stability of the solution?
It has been stable so far.
What do I think about the scalability of the solution?
It looks as though it will be a scalable solution.
How was the initial setup?
The initial setup is straightforward.
What other advice do I have?
I would suggest that you go for at least five or six environments. Typically, they provide three environments, and I think you should go for more, perhaps. six environments by default.
On a scale from one to ten, I would rate OutSystems at eight.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Head of Technology & Governance at a government with 5,001-10,000 employees
Allows for quick application building, but with a hefty price tag to match
Pros and Cons
- "We have no complaints surrounding both the scalability and stability of this solution."
- "The technical features are good, but the actual commercialization is out of reach."
What is our primary use case?
We use OutSystems to analyze disparate applications that are about to become obsolete.
As we currently can't afford it, we are still in the testing and evaluating phase.
What is most valuable?
You can use this solution to build applications very rapidly. It can also easily be deployed on mobile devices and applications as well.
What needs improvement?
The biggest challenge for us is the licensing model and the cost of OutSystems. The apps that we are interested in have a very large user-base and OutSystems drastically ramps those costs up.
For how long have I used the solution?
I have dealt with this solution for roughly 18 months.
What do I think about the scalability of the solution?
We have no complaints surrounding both the scalability and stability of this solution.
Which solution did I use previously and why did I switch?
We use ServiceNow for CMDB and ITSM related needs; we don't use ServiceNow for application development, so for us, the two aren't comparable. I don't have any experience with SericveNow's capabilities in that space.
How was the initial setup?
Our team had no issues with the technical side of the initial setup. Ultimately, they were able to create prototypes and build apps really quickly. But I think where we failed was with the commercial side of it, in terms of the licenses and the costs surrounding deployment.
I believe our functional labs were up and running within a couple of days; however, we have not deployed it on a wider scale as we can't afford to.
What about the implementation team?
Our in-house team of one or two people took care of everything.
What other advice do I have?
OutSystems is a good solution, but it's not cheap.
On a scale from one to ten, I would give this solution a rating of five. The technical features are good, but the actual commercialization is out of reach.
Which deployment model are you using for this solution?
Hybrid Cloud
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Director Technology at a tech vendor with 10,001+ employees
You can keep running your applications because it's on .NET and hosted centrally
Pros and Cons
- "One thing I like about OutSystems is that there's no lock-in. You can keep running your applications because it's on .NET and hosted centrally. That's one of the advantages I see there in terms of not having an IT strategy that has a dependency on a particular platform."
- "The integration points need to be increased. People have also started to adopt this solution for their regular needs. That means it's not only the big enterprises that are adopting this solution. There are also small and medium enterprises that are adopting it. I've read that where you have large deployments, OutSystems starts to crumble a bit. That is the idea that no customer would know at the beginning and would also not like to hit the wall there. When it is on the client, there are a lot of applications already on low-code, and then suddenly you realize that you want to do some big applications, and you face hurdles. This is the general feedback for all such platforms."
What is most valuable?
One thing I like about OutSystems is that there's no lock-in. You can keep running your applications because it's on .NET and hosted centrally. That's one of the advantages I see there in terms of not having an IT strategy that has a dependency on a particular platform.
What needs improvement?
The integration points need to be increased. People have also started to adopt this solution for their regular needs. That means it's not only the big enterprises that are adopting this solution. There are also small and medium enterprises that are adopting it.
I've read that where you have large deployments, OutSystems starts to crumble a bit. That is the idea that no customer would know at the beginning and would also not like to hit the wall there. When it is on the client, there are a lot of applications already on low-code, and then suddenly you realize that you want to do some big applications, and you face hurdles. This is the general feedback for all such platforms.
For how long have I used the solution?
We have been there with OutSystems for two and a half years to three years now.
What do I think about the stability of the solution?
Stability could be from multiple perspectives. From an enterprise perspective, it is the stability of the company. For example, most of the enterprise ERPs are SAP, so I don't have to check twice if a product is okay.
It's the IT strategy a company is taking, which is effectively what they're going to do for the next five years. They're going to onboard a lot of applications onto this platform. So stability-wise, of course, the scale of the company is not so big, whereas large enterprises could say that it's stable as an organization.
Coming to the other part of the stability which is at the platform-stability level, I think that the features and the support that they provide are quite good, and because it is horizontally scalable, so it doesn't matter there.
What do I think about the scalability of the solution?
It has good scalability in terms of the target platforms, multi-tenancy, or hosting on multiple clouds.
How are customer service and technical support?
My team has been interacting with technical support and their feedback is good. Their training is good. I think OutSystems provides one of the best trainings out of all similar platforms.
How was the initial setup?
The development environment is quite easy. You install it out of the box, and it works. It's a one-click install there. I have not been involved with Enterprise setup, so I do not have any comments on that.
What about the implementation team?
We primarily suggest the IT and OutSystems work together for the setup.
Which other solutions did I evaluate?
If I talk about enterprise-level implementation, we work very closely with Siemens, which is where Mendix comes from. We are partners with Siemens, and that's where it helps us in developing applications on Mendix because we get good community support there. I'm not sure how things are otherwise.
For OutSystems, it is more of community support and a kind of library they have, in terms of the reference implementation of libraries, which can be applied.
For the industrial and enterprise nature of work, that is, for B2B scenarios, Mendix fares well. OutSystems might have a slight advantage for B2C scenarios. I would say that they are equivalent in most of the aspects. There are certain features that Mendix provides which OutSystems does not provide. Similarly, there are areas where OutSystems fares good but Mendix does not. I would rate Mendix and OutSystems the same.
The initial adoption of Microsoft PowerApps is a little bit of a hurdle. If that's overcome, then other things would be reliant. When we talk about PowerApps, we talk about the whole Microsoft ecosystem, that is, Microsoft Flow, Microsoft PowerApps, Microsoft Power Automate, which effectively brings a lot of power in terms of an ecosystem.
If I have to go with applications related to Microsoft Office 365, I might go for PowerApps. If I need external integrations and things, where they provide premium APIs and things, it becomes a little bit of a challenge.
Development-wise, PowerApps could provide a free version. They always have but it's quite restricted. If you download OutSystems or Mendix, you could do anything with the free version. That's where, in terms of acceptance, PowerApps gets a little restrictive because you need a license to evaluate it. If it is not restricted, there'll be more adoption. Of course, you can restrict deployment, the size, and all that, but development capabilities should not be restricted.
What other advice do I have?
The value proposition is not clearly visible out of these platforms as yet. Your penetration level will be decided based on if you are able to reach small and medium enterprises. If I compare something like Zoho with OutSystems, Zoho is getting good traction by purely focusing on the small and medium enterprises. These kinds of things could be game-changers in the future.
That's where the licensing model becomes a little cryptic. Of course, for enterprise, it makes sense at certain times, and it does not at certain times. The licensing models are one of the things that could be improved there and changed in terms of adaptability.
OutSystems is quite a mature platform. OutSystems provides a lot of capabilities as such. However, it's not a one-size-fits-all kind of solution. Based on the needs, the platform that would be the most suitable one should be decided.
I would rate this solution an eight out of ten.
Disclosure: My company has a business relationship with this vendor other than being a customer. Integrator
CTO at a consultancy with 201-500 employees
Great platform, very stable and it does automatic dependency checking: very useful for enterprise environments
Pros and Cons
- "You can go huge - so it is definitely a scalable solution."
- "It needs improvement in the AI capability."
What is our primary use case?
We don't sell OutSystems as a separate solution. We sell it as a platform. And then you win a lot of solutions on top of it. So that can be a second process, it can be a middle phase, it can be a portal, it can be many things, but it is useful for small apps to complete ERP systems and everything in-between.
How has it helped my organization?
It supports implementing Agile at scale, as it enables working in an iterative way, and it is very fast. Time to value as a result has dropped significantly!
What is most valuable?
What I like most about this solution is that it does automatic dependency checking in enterprise environments, which means that the application will automatically test if it can work in the environment of the customer or not. Instead of only having to find it out when it is too late. Normally, if you build software, you test it and then you deploy it. In the real world, it sometimes happens that it does not work and then you quite often have to figure out why is it happening. So this step is completely taken away because OutSystems tests the functionality of the software against the existing systems in an automatic session and that is very valuable.
What needs improvement?
Something that can be improved is that I would like them to be a little more flexible in the area of containerization. They're currently running on Docker on Windows, but I think they should also support Docker on Linus too. Needs a little more effort.
For how long have I used the solution?
I've worked with OutSystems for many years now - I've worked with it, I've implemented it, and we use it in our company too.
What do I think about the stability of the solution?
OutSystems is extremely stable. We are replacing complete back-end systems with it, and are in progress to go complete mainframe replacements with it.
What do I think about the scalability of the solution?
You can go to huge back-ends with OutSystems - so it is definitely a scalable solution.
How are customer service and technical support?
The technical support is quite good, although it could be better: it currently fluctuates a little depending on how busy they are. Also it depends on your contract (what level of support you have).
How was the initial setup?
The initial setup is super simple and you can do it from your desktop. That is if you only want to implement the platform, but if you have a more complex enterprise setting, then it will be a little more complex and you will have to do some configuration, and up-front think about what functionality you expect to need (particularly if you chose to run on a native AWS or Azure environment so that you can make full use of all the functionality of those 2 CLoud environments. If you do not know exactly how the platform works and what it can do, you can implement certain things and redo a few things. But that's not a deficit. More power comes with more responsibility, l always say.
What was our ROI?
That depends on the kind of solution you are building and at what speed: the more you build, the higher the ROI.
What's my experience with pricing, setup cost, and licensing?
For a single application, it's too expensive, but that's also not what the OutSystems aims for. Personally I don't think that's the smart approach. Their model is really based on platform and not every customer is ready to adopt a platform at the start. So, as a result, they actually limit their own success and results at the moment. But that isn't a huge issue. If you look at the value of the platform, I think the pricing is fair.
Which other solutions did I evaluate?
We looked at multiple alternatives, including (but not limited to) Appian, Betty Blocks, Mendix, Kony , Pega etc. They all have their own stronger and weaker points, yet we chose OutSystems as it is the most suitable platform for an Enterprise environment. As we do end2end transformations, this is why we chose OutSystems.
What other advice do I have?
I will rate OutSystems a nine out of ten because if you look at other solutions, they do not have the functionality, the scalability and the performance of OutSystems, even if their prices are lower. So if you need a platform for a large organization, OutSystems is the one.
To make it the perfect solution, it needs improvement in the AI capability. I would say that it would be nice to augment the functionality for the citizen development even further and augment the cloud's platform controls so that you can more easily run in a hybrid cloud environment too. Next to better branching options.
A word of advice to others is that they should align the business and IT because many people look at it from a technical point of view. And that is another really smart thing to do because it is really about driving the value. Because I've seen customers that bought either mandates or OutSystems or any other platforms and a lot of them had difficulties in getting the value out of it. And the reason was because if the IT or individual departments don't know how to define the proper user requirements, and then it is too difficult to successfully deploy it. It is therefore very important for the business and IT team to work together because that is the most common mistake people make.
Which deployment model are you using for this solution?
Public Cloud
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner.
CEO & Founder at a financial services firm with 51-200 employees
You need jQuery/CSS skills for customization of the GUI
What is our primary use case?
Created an operational-risk-management and issue-management application.
How has it helped my organization?
We got discounted pricing from them in writing and built for a year, but now they require 50% more.
What is most valuable?
- Fast for server-side development.
- Easy to learn.
- GUI is good.
What needs improvement?
- You need jQuery/CSS skills for customization of the GUI.
- Reporting is very light.
- No built-in BI.
For how long have I used the solution?
Trial/evaluations only.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
IT Application Developer at a hospitality company with 5,001-10,000 employees
Refactoring with TrueChange is very simple
Pros and Cons
- "Refactoring with TrueChange is very simple."
- "Their out-of-the-box UI is quite good."
- "Speed of delivery: We were able to reduce development time by 30%."
- "When shared extensions are updated, all the applications are redeployed."
- "Mobile apps should have been fully native."
- "Writing custom code still needs to be done via Integration Studio. This might have been added to the IDE."
What is our primary use case?
The primary use case is to build applications for internal users.
How has it helped my organization?
- Speed of delivery: We were able to reduce development time by 30%.
- Able to automate manual processes in various departments.
What is most valuable?
- Great built-in features to get us up and running in no time.
- Their out-of-the-box UI is quite good.
- Easy deployment
- Refactoring with TrueChange is very simple.
- Monitoring and logging are built into it.
What needs improvement?
- Writing custom code still needs to be done via Integration Studio. This might have been added to the IDE.
- When shared extensions are updated, all the applications are redeployed.
- Mobile apps should have been fully native.
For how long have I used the solution?
One to three years.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
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