Twin Sun

Trustworthy partners that deliver results

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Every successful project starts with trust. We make this concept evident from the start of every new relationship. Before we write the first line of code, we will seek to understand you and your team as human beings. We start each partnership by building a foundation of mutual trust and respect. We'll ask about your business, your goals, and what you envision when you think of your future product. This ensures we are aligned on how to build your product and give you the best possible outcomes based on our understanding of your business.

Based in Nashville and founded in 2017, Twin Sun set out to bring humanity to software development consulting. We understand the challenges you face when selecting a development partner. We've worked with teams of all sizes, from one-person startups to global corporations, and we are ready to help navigate all aspects of product design, development, and long-term support to help make your effort as successful as possible.

Why partner with Twin Sun?

We make it easy to trust us. We focus on clear, consistent communication and reliable delivery of quality work. Regularly scheduled touchpoints, documentation of our progress, and opportunities for feedback ensure you know what to expect and when. You will work directly with our 100% US-based team to build the product you want.

Most new projects start with a fixed price development contract. This arrangement de-risks your financial investment in our team, explicitly outlines what you can expect, and comes with an included 30-day defect reporting period. Any bugs reported within 30 days of completion of your project will be addressed at no cost to you.

$150 - $199/hr
10 - 49
United States
1300 Division St. Suite 201, Nashville, Tennessee 37203

Focus Areas

Service Focus

  • Mobile App Development
  • Web Development
  • Software Development

Client Focus

  • Small Business

Industry Focus

  • Information Technology

Twin Sun Clients & Portfolios

Key Clients

  • Artful Agenda
  • Objective Zero
  • Rent One
  • Nashville Biosciences

It's Your Birthday!
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It's Your Birthday!
  • It's Your Birthday! screenshot 1
$100001 to $500000
100 weeks


When re-designing the IYB product, it was important to focus on vibrant colors, appealing UX/UI, and sleek animations and user flow. The first step here was finding choke points in the existing flow, and focusing on improving them with the new design. Changing things like the video creation process to follow a non-linear process, and allowing guest user access, were pivotal in the re-imagining of the user flow. Twin Sun ended up writing a new back-end in Ruby on Rails, and developed the mobile app from scratch using Google’s Flutter framework.


The It’s Your Birthday app can be found in the Apple App Store and Google Play Store. We are actively consulting and planning out an enterprise focused solution as the next step for the IYB product!

Project Technology:

Android and iOS (Flutter), Ruby on Rails

Objective Zero
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Objective Zero
  • Objective Zero screenshot 1
$100001 to $500000
70 weeks
Healthcare & Medical

Objective Zero seeks to reverse the trend of approximately 20 veteran service members taking their lives each day. A 501(c)3 organization ran by service members, Objective Zero provides a nationwide peer support network to connect active service members and veterans via text messages, voice, and video calls.


To support their mission of achieving zero veteran suicides, the Objective Zero team needed a development team they could rely on for the long run.


Twin Sun offered a flexible part-time staffing arrangement to address the variable flow of new work, with the option to surge availability as the need arises. We inherited an existing functioning platform that needed production support, remediation of past technical debt, and regular addition of new features. Our flexible arrangement and regular communication gave Objective Zero the opportunity to regularly re-balance the focus of our efforts based on organizational needs.


Objective Zero has a communication platform that is continually improving to serve the mission of preventing veteran suicides. We continue to work with Objective Zero to connect the military community to peer support, wellness, and mental health resources.

Project Technology:

Android (Java), iOS (Swift), Node.js, React

Artful Agenda
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Artful Agenda
  • Artful Agenda screenshot 1
$100001 to $500000
100 weeks


Prior to our involvement, the Artful Agenda web app was seemingly stuck in an ever expanding timeline. After missing the initial launch window and becoming concerned about the ever increasing cost, Artful began to explore other agencies for help.


With our combined experience, we were quick to notice that the current agency relationship was far from ideal, and was not on track to improve. Artful desired a fixed set of remaining features, and wanted to have a firm understanding of the cost to get there. We took the necessary time to review the code, remaining issues, deployment set-up, and anything else we could. This allowed us to come up with a fixed price proposal that accomplished all of the remaining goals for a beta launch.


The web application is now in live! After a successful launch, we have continued maintaining and adding to the app in support of the strong user base. We also launched mobile apps in 2019!

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