Rosario Sistemas Reviews

Easy to work with and very transparent on timelines and cost

Ryan Johnson / Founder & CEO | Jul 20, 2026

We were very happy with how this project went. They shared working builds regularly, so we could test early and give feedback before things were locked in. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

It has made a real difference to how our team works day to day.

We would definitely work with them again.

Project summary

Rosario Sistemas was brought in to build firmware and a companion app for a smart device we were launching. The work covered requirements, design, development, testing and launch support. Overall it was a 8-month engagement.

Overall Rating 4.5
Quality 4.5
Schedule 4.0
Project Cost 4.5
Willing To Refer 5.0

Project Type:: IoT Development
Project Cost:: $10,000 to $49,999
Project Duration:: Sep 2025 - May 2026
Business Type:: Events & Event Management
Location:: Denver, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the Founder & CEO at Clearfield Events LLC, a Events & Event Management company based in Denver, USA. I look after our technology and work closely with outside partners on bigger projects.

What specific problem or business challenge led you to hire this company?

Our team was spending too much time on manual work. The goal was to build firmware and a companion app for a smart device we were launching so they could focus on customers.

What services did the company provide for your project?

IoT Development, including planning, development, testing and launch support.

Why did you choose this company over other providers you considered?

We compared three or four agencies. Rosario Sistemas asked the best questions and had good reviews from past clients.

How clearly did the company understand your requirements and business goals?

Better than we expected. They pointed out a few things we had not thought about.

How was your overall experience with their communication and project management?

Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.

Did the company deliver the project on time and within your expected budget?

Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.

What tangible results or business impact have you seen since the project was completed?

We can now handle more volume without adding staff, which was the main goal.

What did you like most about working with this company?

How easy they were to work with. They were responsive, honest and genuinely interested in our success.

Would you recommend this company to others, and would you work with them again?

Definitely. We have already started talking about the next phase.

Delivered on time and stayed involved after launch

Johan Naidoo / Owner | Jul 18, 2026

Rosario Sistemas did an excellent job for us. They were upfront about what was realistic within our budget, which helped us prioritise the right features. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

It has made a real difference to how our team works day to day. We are already discussing the next phase with them.

Project summary

We engaged Rosario Sistemas to build a Web3 dashboard and wallet integration for our platform. Scope included discovery workshops, development in two-week sprints and a short support period after launch. The engagement ran for about 2 months.

Overall Rating 5.0
Quality 5.0
Schedule 5.0
Project Cost 4.5
Willing To Refer 5.0

Project Type:: Blockchain Development
Project Cost:: $50,000 to $149,999
Project Duration:: Apr 2026 - Jun 2026
Business Type:: Media & Entertainment
Location:: Johannesburg, South Africa

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I work as Owner at Stonebridge Pictures (Pty) Ltd. We operate in Media & Entertainment and most of our customers are in and around Johannesburg, South Africa.

What specific problem or business challenge led you to hire this company?

Our existing setup was holding us back. We wanted to build a Web3 dashboard and wallet integration for our platform before our busy season.

What services did the company provide for your project?

End-to-end Blockchain Development — from requirements and design through to deployment and a support period afterwards.

Why did you choose this company over other providers you considered?

A colleague recommended them, and our first calls confirmed they understood what we needed.

How clearly did the company understand your requirements and business goals?

Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.

How was your overall experience with their communication and project management?

Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.

Did the company deliver the project on time and within your expected budget?

It was delivered on time, and the final invoice matched the original estimate.

What tangible results or business impact have you seen since the project was completed?

Our team saves several hours a week, and we have had very few issues since launch.

What did you like most about working with this company?

Their attention to detail and the quality of the final product.

Would you recommend this company to others, and would you work with them again?

Yes, I've already recommended them to a couple of people I know.

Rosario Sistemas Delivered a Quality Game Development Solution on Time

Rahul Mehta / General Manager | Jul 11, 2026

Rosario Sistemas did an excellent job for us. When we changed our minds on a couple of features halfway through, they handled it without fuss and were clear about the impact on cost and timeline. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

The result looks great and performs well, and our internal team found it easy to take over.

Happy to recommend them.

Project summary

Rosario Sistemas was brought in to port our game to new platforms and improve performance. The work covered requirements, design, development, testing and launch support. The project took roughly 5 months from kickoff to launch.

Overall Rating 4.5
Quality 4.0
Schedule 4.5
Project Cost 4.5
Willing To Refer 5.0

Project Type:: Game Development
Project Cost:: $150,000 to $499,999
Project Duration:: Dec 2025 - May 2026
Business Type:: Sports & Fitness
Location:: Noida, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the General Manager at Keystone Fitness, a Sports & Fitness company based in Noida, India. I look after our technology and work closely with outside partners on bigger projects.

What specific problem or business challenge led you to hire this company?

We had tried to do this internally and it stalled. We needed specialists to port our game to new platforms and improve performance.

What services did the company provide for your project?

End-to-end Game Development — from requirements and design through to deployment and a support period afterwards.

Why did you choose this company over other providers you considered?

We compared three or four agencies. Rosario Sistemas asked the best questions and had good reviews from past clients.

How clearly did the company understand your requirements and business goals?

Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.

How was your overall experience with their communication and project management?

Very responsive. We usually heard back the same day, even with the time difference.

Did the company deliver the project on time and within your expected budget?

Yes, on time and within budget.

What tangible results or business impact have you seen since the project was completed?

It is still early, but the numbers are trending in the right direction and the system has been stable.

What did you like most about working with this company?

The consistency. Same team, same standard, from the first week to the last.

Would you recommend this company to others, and would you work with them again?

Yes. They are a reliable Game Development partner.

Professional team that made a complex project feel manageable

Daniel Qureshi / Founder & CEO | Jun 29, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. We dealt with the same core team throughout, so we did not have to keep re-explaining things. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

We are already seeing better numbers than before the project. Overall, a team we trust and plan to keep working with.

Project summary

We engaged Rosario Sistemas to set up a sensor network and alerts for our cold storage facilities. They worked alongside our in-house team, which mostly handled business requirements and testing. The project took roughly 7 months from kickoff to launch.

Overall Rating 5.0
Quality 5.0
Schedule 5.0
Project Cost 5.0
Willing To Refer 5.0

Project Type:: IoT Development
Project Cost:: Less than $10,000
Project Duration:: Oct 2025 - May 2026
Business Type:: Energy & Utilities
Location:: Sharjah, UAE

Questions & Answers

Please describe your company, your role, and the industry you operate in.

Copper Leaf Energy LLC is a Energy & Utilities business in Sharjah, UAE. As Founder & CEO, I was responsible for this project on our side and the main contact for Rosario Sistemas.

What specific problem or business challenge led you to hire this company?

We had tried to do this internally and it stalled. We needed specialists to set up a sensor network and alerts for our cold storage facilities.

What services did the company provide for your project?

End-to-end IoT Development — from requirements and design through to deployment and a support period afterwards.

Why did you choose this company over other providers you considered?

They had relevant experience in Energy & Utilities and their proposal was the clearest of the ones we received.

How clearly did the company understand your requirements and business goals?

Well. There were a couple of points we had to clarify early on, but after that they were spot on.

How was your overall experience with their communication and project management?

Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.

Did the company deliver the project on time and within your expected budget?

Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.

What tangible results or business impact have you seen since the project was completed?

Our team saves several hours a week, and we have had very few issues since launch.

What did you like most about working with this company?

Their attention to detail and the quality of the final product.

Would you recommend this company to others, and would you work with them again?

Yes. They are a reliable IoT Development partner.

Would happily work with them again

Siddharth Agarwal / Head of Digital Transformation | May 12, 2026

Rosario Sistemas did an excellent job for us. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

Feedback from our customers has been very positive so far. If you need a team that communicates well and delivers, they are a good choice.

Project summary

Rosario Sistemas was brought in to set up a sensor network and alerts for our cold storage facilities. The project was split into milestones, with a working build shared at the end of each one. Overall it was a 8-month engagement.

Overall Rating 4.5
Quality 4.5
Schedule 4.0
Project Cost 4.5
Willing To Refer 5.0

Project Type:: IoT Development
Project Cost:: $500,000+
Project Duration:: Jul 2025 - Mar 2026
Business Type:: Logistics & Supply Chain
Location:: Hyderabad, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I work as Head of Digital Transformation at Sage Freight Pvt Ltd. We operate in Logistics & Supply Chain and most of our customers are in and around Hyderabad, India.

What specific problem or business challenge led you to hire this company?

Our team was spending too much time on manual work. The goal was to set up a sensor network and alerts for our cold storage facilities so they could focus on customers.

What services did the company provide for your project?

IoT Development, plus QA and some consulting on how to structure the project.