Gravity Jack

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Details

Founded:: 2009
Hourly Rates:: Undisclosed
Employees:: 10 - 49
Ratings:: 4.1 8 Reviews

Industries Served

Energy & Utilities Retail & E-commerce Events & Event Management Real Estate Pharmaceuticals & Biotechnology Healthcare Gaming & Gambling

Where We Specialize

15% Machine Learning

Machine Learning 15%

AI Development 14%

Progressive Web App 13%

Software Development 12%

Blockchain Development 10%

Salesforce Development 9%

Mobile App Development 8%

DevOps 8%

OpenAI 6%

Bot Development 5%

Industry Expertise

FinTech100%

Typical Project Size

53% Enterprise

37% Midmarket Business

10% Small Business

About

Gravity Jack works with clients to plan, build, and ship digital products. Gravity Jack focuses on AR/VR Development and Web Development. With 10 - 49 people on staff, Gravity Jack can take on projects of varying size. The team is based in Spokane, WA. These details offer a useful starting point when evaluating Gravity Jack.

Gravity Jack Reviews

4.1 8 Reviews

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A reliable long-term partner for our tech needs

Priya Carter / General Manager | Oct 02, 2026

Our experience with Gravity Jack was really positive from start to finish. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. 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.

We launched on schedule and have not had any major issues since.

I would recommend Gravity Jack to anyone looking for a dependable Blockchain Development partner.

Project summary

We hired Gravity Jack to develop and audit smart contracts for a tokenized loyalty program. The work covered requirements, design, development, testing and launch support. The project took roughly 3 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:: Blockchain Development
Project Cost:: $150,000 to $499,999
Project Duration:: Jun 2026 - Sep 2026
Business Type:: Energy & Utilities
Location:: Columbus, USA

Questions & Answers

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

I work as General Manager at Summit Power. We operate in Energy & Utilities and most of our customers are in and around Columbus, USA.

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

Our existing setup was holding us back. We wanted to develop and audit smart contracts for a tokenized loyalty program 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?

We compared three or four agencies. Gravity Jack 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?

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.

Good work overall, with a few bumps along the way

Julia Schmidt / Marketing Director | Aug 20, 2026

Overall the project was a success, though it was not without some challenges. They were upfront about what was realistic within our budget, which helped us prioritise the right features. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

The Web Development work has already made a noticeable difference — tasks that used to take hours now take minutes. Documentation at handover was a bit thin and we had to ask for more detail. Overall, a team we trust and plan to keep working with.

Project summary

Our company worked with Gravity Jack to build a customer portal where clients can log in, track orders and download invoices. The work covered requirements, design, development, testing and launch support. The engagement ran for about 9 months.

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

Project Type:: Web Development
Project Cost:: $50,000 to $149,999
Project Duration:: Sep 2025 - Jun 2026
Business Type:: Retail & E-commerce
Location:: Stuttgart, Germany

Questions & Answers

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

I work as Marketing Director at Beacon Store GmbH. We operate in Retail & E-commerce and most of our customers are in and around Stuttgart, Germany.

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

Our existing setup was holding us back. We wanted to build a customer portal where clients can log in, track orders and download invoices before our busy season.

What services did the company provide for your project?

Web 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. Gravity Jack 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 Retail & E-commerce clients before.

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?

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.

Reliable Mobile App Development Partner That Delivered What They Promised

Kevin Morgan / Product Manager | Jun 21, 2026

Gravity Jack did an excellent job for us. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. The developers were knowledgeable and made a few suggestions that ended up saving us time and money.

The Mobile App Development work has already made a noticeable difference — tasks that used to take hours now take minutes. We are already discussing the next phase with them.

Project summary

We engaged Gravity Jack to rebuild our existing mobile app, which had poor reviews and frequent crashes. 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 5.0
Schedule 5.0
Project Cost 5.0
Willing To Refer 5.0

Project Type:: Mobile App Development
Project Cost:: $50,000 to $149,999
Project Duration:: Nov 2025 - May 2026
Business Type:: Events & Event Management
Location:: Seattle, USA

Questions & Answers

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

We're a mid-sized Events & Event Management company based in Seattle, USA. I'm the Product Manager and I oversaw the project from start to finish.

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

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?

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?

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.

Professional team that made a complex project feel manageable

Neha Iyer / Founder & CEO | Jun 03, 2026

Overall we had a good experience working with Gravity Jack. 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. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

Since launch, everything has been stable and our team has adapted to it quickly. Documentation at handover was a bit thin and we had to ask for more detail. We are already discussing the next phase with them.

Project summary

Gravity Jack was brought in to build iOS and Android apps for our customers, including booking, payments and push notifications. They worked alongside our in-house team, which mostly handled business requirements and testing. We worked together for around 4 months.

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

Project Type:: Mobile App Development
Project Cost:: $50,000 to $149,999
Project Duration:: Dec 2025 - Apr 2026
Business Type:: Real Estate
Location:: Mumbai, India

Questions & Answers

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

We're a mid-sized Real Estate company based in Mumbai, India. I'm the Founder & CEO and I oversaw the project from start to finish.

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

We needed to build iOS and Android apps for our customers, including booking, payments and push notifications, and we didn't have the in-house capacity to do it ourselves.

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?

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?

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?

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

Capable AI & Machine Learning team — happy with the end result

James Shaw / Director of Technology | Apr 13, 2026

We got a good result in the end, but the road there had a few bumps. 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. 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. A couple of milestones slipped by a week or so, mostly around testing. We would definitely work with them again.

Project summary

We engaged Gravity Jack to automate document data extraction that our team was doing by hand. Scope included discovery workshops, development in two-week sprints and a short support period after launch. Overall it was a 6-month engagement.

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

Project Type:: AI & Machine Learning
Project Cost:: $150,000 to $499,999
Project Duration:: Sep 2025 - Mar 2026
Business Type:: Pharmaceuticals & Biotechnology
Location:: Edinburgh, UK

Questions & Answers

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

I'm the Director of Technology at Westbridge Bio Ltd, a Pharmaceuticals & Biotechnology company based in Edinburgh, UK. 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 automate document data extraction that our team was doing by hand.

What services did the company provide for your project?

Mainly AI & Machine Learning. 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?

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?

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?

Yes, on time and within budget.

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?

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?

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

Delivered on time and stayed involved after launch

Rohan Agarwal / Founder & CEO | Mar 27, 2026

We were happy with the final result. 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 AI & Machine Learning work has already made a noticeable difference — tasks that used to take hours now take minutes. We had to follow up a few times on smaller bug fixes after launch. I would recommend Gravity Jack to anyone looking for a dependable AI & Machine Learning partner.

Project summary

We engaged Gravity Jack to automate document data extraction that our team was doing by hand. They worked alongside our in-house team, which mostly handled business requirements and testing. The engagement ran for about 5 months.

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

Project Type:: AI & Machine Learning
Project Cost:: $10,000 to $49,999
Project Duration:: Sep 2025 - Feb 2026
Business Type:: Energy & Utilities
Location:: Bengaluru, India

Questions & Answers

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

We're a mid-sized Energy & Utilities company based in Bengaluru, India. I'm the Founder & CEO 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 automate document data extraction that our team was doing by hand.

What services did the company provide for your project?

AI & Machine Learning, including planning, development, testing and launch support.

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?

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?

Yes, on time and within budget.

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?

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.

Capable Software Development team — happy with the end result

Nora Al Otaibi / CEO | Feb 22, 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 were upfront about what was realistic within our budget, which helped us prioritise the right features.

Feedback from our customers has been very positive so far. A couple of milestones slipped by a week or so, mostly around testing.

Happy to recommend them.

Project summary

Our company worked with Gravity Jack to develop a scheduling and dispatch tool for our field team. The project was split into milestones, with a working build shared at the end of each one. Overall it was a 2-month engagement.

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

Project Type:: Software Development
Project Cost:: $10,000 to $49,999
Project Duration:: Dec 2025 - Feb 2026
Business Type:: Healthcare
Location:: Riyadh, Saudi Arabia

Questions & Answers

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

We're a mid-sized Healthcare company based in Riyadh, Saudi Arabia. I'm the CEO 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 develop a scheduling and dispatch tool for our field team.

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.