Yellow Marshmallow Reviews

Honest advice and solid execution

Carlos Coleman / CEO | Oct 15, 2026

I would rate this engagement highly on almost every front. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. 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. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

Since launch, everything has been stable and our team has adapted to it quickly. We would definitely work with them again.

Project summary

Yellow Marshmallow was brought in to build iOS and Android apps for our customers, including booking, payments and push notifications. They also took care of integrations with a couple of third-party tools we already used. The project took roughly 2 months from kickoff to launch.

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

Project Type:: Mobile App Development
Project Cost:: $10,000 to $49,999
Project Duration:: Jul 2026 - Sep 2026
Business Type:: Real Estate
Location:: Nashville, USA

Questions & Answers

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

Horizon Realty is a Real Estate business in Nashville, USA. As CEO, I was responsible for this project on our side and the main contact for Yellow Marshmallow.

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 build iOS and Android apps for our customers, including booking, payments and push notifications.

What services did the company provide for your project?

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

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

Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.

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?

Communication was good overall and improved further once we settled into a routine.

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?

Yes, I would recommend them and we plan to work with them again.

Good work overall, with a few bumps along the way

Nicole Fisher / VP of Engineering | Sep 17, 2026

The final product works well for us, although the process could have been smoother. They shared working builds regularly, so we could test early and give feedback before things were locked in. Their project manager kept things organised and was quick to flag anything that might affect the timeline. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

The result looks great and performs well, and our internal team found it easy to take over. A couple of milestones slipped by a week or so, mostly around testing. Happy to recommend them.

Project summary

Our company worked with Yellow Marshmallow to build a custom operations platform to replace the spreadsheets and email threads we were running the business on. Their team handled planning, development and QA, with our product owner signing off each milestone. Overall it was a 7-month engagement.

Overall Rating 3.5
Quality 4.0
Schedule 3.5
Project Cost 3.5
Willing To Refer 5.0

Project Type:: Software Development
Project Cost:: $500,000+
Project Duration:: Jan 2026 - Aug 2026
Business Type:: Financial Services
Location:: Atlanta, USA

Questions & Answers

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

I work as VP of Engineering at Greenfield Wealth. We operate in Financial Services and most of our customers are in and around Atlanta, USA.

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

We needed to build a custom operations platform to replace the spreadsheets and email threads we were running the business on, and we didn't have the in-house capacity to do it ourselves.

What services did the company provide for your project?

Software 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. Yellow Marshmallow 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?

Communication was good overall and improved further once we settled into a routine.

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?

Customer feedback has been positive, and we have seen better engagement since going live.

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?

Yes, I would recommend them and we plan to work with them again.

Easy to work with and very transparent on timelines and cost

Pooja Reddy / Owner | Sep 17, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

The result looks great and performs well, and our internal team found it easy to take over. We would definitely work with them again.

Project summary

We hired Yellow Marshmallow to port our game to new platforms and improve performance. They worked alongside our in-house team, which mostly handled business requirements and testing. Overall it was a 6-month engagement.

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

Project Type:: Game Development
Project Cost:: $10,000 to $49,999
Project Duration:: Feb 2026 - Aug 2026
Business Type:: Pharmaceuticals & Biotechnology
Location:: Gurugram, India

Questions & Answers

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

We're a mid-sized Pharmaceuticals & Biotechnology company based in Gurugram, India. I'm the Owner and I oversaw the project from start to finish.

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

Our existing setup was holding us back. We wanted to port our game to new platforms and improve performance before our busy season.

What services did the company provide for your project?

Game 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. Yellow Marshmallow asked the best questions and had good reviews from past clients.

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?

Organised and transparent. Their project manager kept the project on track and flagged risks early.

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?

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?

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

Good results, communication improved as the project went on

Brandon Fisher / Engineering Manager | Sep 16, 2026

We got a good result in the end, but the road there had a few bumps. 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 shared working builds regularly, so we could test early and give feedback before things were locked in.

The Mobile App Development work has already made a noticeable difference — tasks that used to take hours now take minutes. Estimates on a few features were optimistic and those took longer than planned. We are already discussing the next phase with them.

Project summary

Our company worked with Yellow Marshmallow to develop a field-staff app with offline mode that syncs back to our main system. They also took care of integrations with a couple of third-party tools we already used. The engagement ran for about 8 months.

Overall Rating 3.5
Quality 3.5
Schedule 3.5
Project Cost 3.5
Willing To Refer 5.0

Project Type:: Mobile App Development
Project Cost:: $50,000 to $149,999
Project Duration:: Nov 2025 - Jul 2026
Business Type:: Education
Location:: Dallas, USA

Questions & Answers

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

Northgate EdTech is a Education business in Dallas, USA. As Engineering Manager, I was responsible for this project on our side and the main contact for Yellow Marshmallow.

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 develop a field-staff app with offline mode that syncs back to our main system so they could focus on customers.

What services did the company provide for your project?

End-to-end Mobile App 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. Yellow Marshmallow asked the best questions and had good reviews from past clients.

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

They understood our goals quickly, partly because they had worked with Education clients before.

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

Communication was good overall and improved further once we settled into a routine.

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?

That they were proactive — they suggested improvements instead of just doing what was asked.

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.

Yellow Marshmallow Delivered a Quality Mobile App Development Solution on Time

Wei Jie Goh / Head of Digital | Sep 07, 2026

Yellow Marshmallow did an excellent job for us. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. Even with the time zone difference, responses usually came the same day and we never felt left in the dark.

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

Our company worked with Yellow Marshmallow to rebuild our existing mobile app, which had poor reviews and frequent crashes. Scope included discovery workshops, development in two-week sprints and a short support period after launch. Overall it was a 3-month engagement.

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

Project Type:: Mobile App Development
Project Cost:: $150,000 to $499,999
Project Duration:: Apr 2026 - Jul 2026
Business Type:: Telecommunications
Location:: Singapore

Questions & Answers

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

We're a mid-sized Telecommunications company based in Singapore. I'm the Head of Digital and I oversaw the project from start to finish.

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 rebuild our existing mobile app, which had poor reviews and frequent crashes.

What services did the company provide for your project?

Mainly Mobile App Development. They also helped with the technical planning and a few integrations with our existing tools.

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

We compared three or four agencies. Yellow Marshmallow 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?

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?

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?

Customer feedback has been positive, and we have seen better engagement since going live.

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?

Yes. They are a reliable Mobile App Development partner.

Reliable Mobile App Development Partner That Delivered What They Promised

Eric Ramirez / Head of Product | Jul 16, 2026

Overall we had a good experience working with Yellow Marshmallow. Their project manager kept things organised and was quick to flag anything that might affect the timeline. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

Since launch, everything has been stable and our team has adapted to it quickly. Their team changed one developer midway, which slowed things down for a couple of weeks.

We are already discussing the next phase with them.

Project summary

Our company worked with Yellow Marshmallow to rebuild our existing mobile app, which had poor reviews and frequent crashes. The project was split into milestones, with a working build shared at the end of each one. We worked together for around 4 months.

Overall Rating 4.0
Quality 4.5
Schedule 3.5
Project Cost 4.0
Willing To Refer 5.0

Project Type:: Mobile App Development
Project Cost:: $50,000 to $149,999
Project Duration:: Jan 2026 - May 2026
Business Type:: Fashion & Apparel
Location:: Phoenix, USA

Questions & Answers

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

Horizon Wear is a Fashion & Apparel business in Phoenix, USA. As Head of Product, I was responsible for this project on our side and the main contact for Yellow Marshmallow.

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

Our existing setup was holding us back. We wanted to rebuild our existing mobile app, which had poor reviews and frequent crashes before our busy season.

What services did the company provide for your project?

Mobile App 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. Yellow Marshmallow 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?

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?

Customer feedback has been positive, and we have seen better engagement since going live.

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, I would recommend them and we plan to work with them again.

Great team to work with — professional, responsive and reliable

Zoe Harris / Co-Founder & CTO | Jun 28, 2026

Yellow Marshmallow 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. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

We are already seeing better numbers than before the project.

If you need a team that communicates well and delivers, they are a good choice.

Project summary

We partnered with Yellow Marshmallow to develop a casual mobile game from concept to launch. The work covered requirements, design, development, testing and launch support. Overall it was a 4-month engagement.

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

Project Type:: Game Development
Project Cost:: $10,000 to $49,999
Project Duration:: Feb 2026 - Jun 2026
Business Type:: Gaming & Gambling
Location:: Brisbane, Australia

Questions & Answers

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

I work as Co-Founder & CTO at Silverline Interactive. We operate in Gaming & Gambling and most of our customers are in and around Brisbane, Australia.

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 develop a casual mobile game from concept to launch so they could focus on customers.

What services did the company provide for your project?

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

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?

They understood our goals quickly, partly because they had worked with Gaming & Gambling clients before.

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

Communication was good overall and improved further once we settled into a routine.

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?

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

What did you like most about working with this company?

That they were proactive — they suggested improvements instead of just doing what was asked.

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.

Strong Technical Skills and a Very Responsive Software Development Team

Jack Stewart / Founder & CEO | Jun 26, 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. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

Since launch, everything has been stable and our team has adapted to it quickly.

If you need a team that communicates well and delivers, they are a good choice.

Project summary

Yellow Marshmallow was brought in to build a custom operations platform to replace the spreadsheets and email threads we were running the business on. They worked alongside our in-house team, which mostly handled business requirements and testing. The project took roughly 8 months from kickoff to launch.

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

Project Type:: Software Development
Project Cost:: Less than $10,000
Project Duration:: Sep 2025 - May 2026
Business Type:: Advertising & Marketing
Location:: Sydney, Australia

Questions & Answers

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

I work as Founder & CEO at Cobalt Media Group Pty Ltd. We operate in Advertising & Marketing and most of our customers are in and around Sydney, Australia.

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

Our existing setup was holding us back. We wanted to build a custom operations platform to replace the spreadsheets and email threads we were running the business on before our busy season.

What services did the company provide for your project?

Mainly Software Development. They also helped with the technical planning and a few integrations with our existing tools.

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

We compared three or four agencies. Yellow Marshmallow 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?

Communication was good overall and improved further once we settled into a routine.

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?

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

They listened, asked the right questions, and delivered

Lauren Foster / Co-Founder & CTO | May 15, 2026

Yellow Marshmallow did good work for us, and we would use them again. They shared working builds regularly, so we could test early and give feedback before things were locked in. 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. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

We are already seeing better numbers than before the project. A couple of milestones slipped by a week or so, mostly around testing. Happy to recommend them.

Project summary

Yellow Marshmallow was brought in to port our game to new platforms and improve performance. Scope included discovery workshops, development in two-week sprints and a short support period after launch. We worked together for around 9 months.

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

Project Type:: Game Development
Project Cost:: Less than $10,000
Project Duration:: Jul 2025 - Apr 2026
Business Type:: Advertising & Marketing
Location:: Tampa, USA

Questions & Answers

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

I'm the Co-Founder & CTO at Clearfield Creative Inc, a Advertising & Marketing company based in Tampa, 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?

We needed to port our game to new platforms and improve performance, and we didn't have the in-house capacity to do it ourselves.

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.