Work & Co vs WillowTree: Choosing the Right Custom App Development Partner

Large agencies often provide scale but can lack the agility and specialized monetization focus required for modern digital product success. Talk to a MetaCTO expert to build a high-performance application that maximizes ROI through rapid iteration and AI enablement.

5 min read
Valerie Moore
By Valerie Moore Director of Product
Work & Co vs WillowTree: Choosing the Right Custom App Development Partner

Introduction

In the high-stakes environment of modern digital product development, selecting the right agency is perhaps the single most critical decision a stakeholder can make. The landscape of application development has shifted dramatically; it is no longer sufficient to merely write code or design a pretty interface. Today, success requires a synthesis of rigorous strategy, artificial intelligence integration, and a relentless focus on monetization and user retention.

For enterprise-level organizations, two names frequently rise to the top of the consideration list: Work & Co and WillowTree. Both firms have established reputations for delivering robust digital products for Fortune 500 clientele. They boast impressive portfolios, global footprints, and recent acquisitions by massive international conglomerates—Accenture and TELUS International, respectively. However, for businesses that prioritize agility, rapid market entry, and direct access to executive technical leadership, the traditional agency model utilized by these giants may present challenges regarding cost and velocity.

This article provides a comprehensive, impartial comparison of Work & Co and WillowTree, analyzing their service models, industry expertise, and technical capabilities. Furthermore, we will discuss MetaCTO, a U.S.-based firm founded by experienced CTOs, as a compelling alternative for organizations seeking to launch revenue-generating mobile app development projects with speed and precision.

What is Work & Co?

Founded in 2013 in Brooklyn, New York, Work & Co has carved out a distinct niche as a “digital product agency.” Unlike generalist marketing firms, Work & Co focuses almost exclusively on designing and building the specific digital tools and services that consumers use daily. Their reputation is built on a model of deep collaboration and high-end design execution.

Corporate Structure and Reach

Work & Co operates on a global scale with a headcount of roughly 400 to 450 employees. While headquartered in Brooklyn, they maintain a hybrid model with a significant physical presence across the United States (Atlanta, Los Angeles, Portland) and internationally (Belgrade, Copenhagen, Rio de Janeiro, and São Paulo).

It is notable that in early 2024, Work & Co was acquired by Accenture and now operates under Accenture Song. This acquisition underscores their status in the market but also shifts their operational context into that of a massive global consultancy. Despite their global spread, they emphasize that they are not a low-cost offshore outfit; about half of their staff consists of developers and engineers based within their various offices, working in dedicated, interdisciplinary teams.

Services and Methodologies

Work & Co prides itself on a “no timesheets” policy and a hands-on approach where senior members remain involved throughout the project. Their core capabilities include:

  • Product Management & Strategy: Defining roadmaps, conducting user research, and establishing KPIs.
  • Design: A heavy focus on UX/UI, prototyping, motion design, and spatial/immersive design (AR/VR).
  • Engineering: Full-stack web and mobile development, DevOps, and data engineering.
  • AI & Emerging Tech: They have invested in “Agentic AI workflows” and “AI-accelerated software delivery,” engaging with clients to stand up new generative AI products.

Notable Projects

Work & Co serves a broad array of industries, including retail, finance, travel, and technology. Their portfolio is studded with high-profile achievements:

  • IKEA: They led the design and engineering of IKEA’s first-ever e-commerce app and omnichannel shopping platform.
  • Gatorade: They built the Gx fitness app, a CES Innovation Award winner that utilizes personalized workout technology and AI to analyze sweat and training data.
  • Virgin America: They developed a responsive web and mobile app ecosystem that was widely praised for its user experience.

What is WillowTree?

WillowTree, headquartered in Charlottesville, Virginia, is another heavyweight in the digital product space, with a history stretching back to 2007. While they share similarities with Work & Co regarding their full-service offerings, WillowTree has historically leaned heavily into mobile strategy and enterprise-grade app development.

Corporate Structure and Reach

In late 2022, WillowTree was acquired by TELUS International for approximately $1.2 billion. This acquisition placed them under the umbrella of a major telecom and digital services group, expanding their resource base significantly. WillowTree employs thousands of staff members, a scale that differentiates them from smaller boutique shops.

Their operations are primarily U.S.-based, with major offices in Durham, Columbus, Boston, and New York. However, they also utilize a global delivery model with international locations in Vancouver, Canada; Porto Alegre, Brazil; and a development center in Noida, India. This mix allows them to service massive enterprise clients like Johnson & Johnson and PepsiCo.

Services and Methodologies

WillowTree markets itself as a full-service digital product agency with deep roots in mobile strategy. Their service offerings include:

  • Mobile & Web Development: Custom app development including cloud and API integration.
  • Data & AI Consulting: They offer “GenAI accelerators,” conversational AI, and agentic automation, positioning themselves to help enterprises navigate the AI revolution.
  • Growth Marketing: They provide lifecycle marketing and retention strategies alongside their builds.

Notable Projects

WillowTree has delivered hundreds of apps since their inception. Their work often involves complex integrations for large-scale consumer brands:

  • Regal Cinemas: They built a mobile app that won multiple CX awards for customer experience.
  • Pepsi: They developed a companion app for the Super Bowl Halftime Show, demonstrating their ability to handle high-traffic experiential events.
  • Enterprise Solutions: They have built significant platforms for Wyndham Hotels, Fox News, and GE.

Work & Co vs WillowTree

When comparing these two agencies, the distinctions often come down to culture, scale, and design philosophy rather than raw capability, as both are capable of delivering enterprise-grade software.

Ownership and Scale

Both firms have recently exited independence. Work & Co is now part of Accenture, while WillowTree is part of TELUS International. For a client, this ensures financial stability and access to vast resources. However, it also means engaging with a subsidiary of a massive conglomerate, which can sometimes influence pricing structures and administrative complexity. WillowTree operates with a workforce in the thousands, suggesting a capacity for massive scale, whereas Work & Co maintains a slightly smaller, albeit still significant, headcount of around 450, emphasizing a “boutique at scale” feel.

Operational Model

  • Work & Co emphasizes small, dedicated, interdisciplinary teams (typically 5–7 senior people per project) and creates a culture that eschews timesheets in favor of iterative delivery. Their approach is heavily design-led.
  • WillowTree leverages a mix of onshore and offshore resources (India and Brazil) to deliver products. They have a strong reputation for project management and communication, with a near-perfect Clutch rating, but their model is more traditional in its structure compared to Work & Co’s “embedded team” philosophy.

Industry Focus

Both firms are generalists, avoiding narrow niches.

  • Work & Co shines in retail and lifestyle brands (IKEA, Nike, Lululemon, Aesop), leveraging design to drive brand equity.
  • WillowTree has strong footing in media and hospitality (Fox, Regal, Wyndham, Marriott), focusing on high-volume consumer interactions and loyalty.

Artificial Intelligence

Both agencies have pivoted to include AI as a core offering. Work & Co touts “Agentic AI workflows” and strategy for Large Language Models (LLMs). WillowTree offers specific “GenAI accelerators” and data engineering. Both are positioning themselves not just as app builders, but as consultants on the AI future.

FeatureWork & CoWillowTree
HeadquartersBrooklyn, NYCharlottesville, VA
Parent CompanyAccenture (Accenture Song)TELUS International
Key GeographyUS, Europe, South AmericaUS, Canada, Brazil, India
Primary FocusDesign-led Product StrategyMobile Strategy & Enterprise Eng.
Team StructureSmall, dedicated senior teamsLarge-scale agile teams
Notable ClientsIKEA, Gatorade, ApplePepsiCo, Regal Cinemas, HBO

Why Use MetaCTO Instead?

While Work & Co and WillowTree are formidable options for Fortune 500 companies with massive budgets and long timelines, they may not be the optimal partners for startups, growth-stage companies, or enterprises seeking rapid innovation and direct ROI. This is where MetaCTO excels.

We differentiate ourselves through a commitment to speed, founder-level technical expertise, and a relentless focus on monetization.

1. Speed to Market: The 90-Day MVP

In the current digital economy, speed is a feature. Large agencies often have months of discovery and procurement before a single line of code is written. At MetaCTO, we specialize in rapid MVP development. We understand that your customers spend 90% of their screen time in mobile apps, and we aim to get your product into their hands in 90 days. This allows for faster market validation and a shorter feedback loop, which is essential for product-market fit.

2. Fractional CTO Leadership

One of our most distinct offerings is our Fractional CTO service. Unlike hiring a traditional agency project manager, partnering with us gives you access to executive-level technology leadership without the $400K+ annual salary. Our team is founded by experienced US-based CTOs who have collectively launched over 100 apps and helped clients raise over $50 million in funding. We don’t just take tickets; we guide your technical strategy to ensure scalability and investor readiness.

3. Deep AI Integration

While large agencies add AI as a consulting line item, we integrate it into the fabric of the products we build. We are a top US AI-powered app development firm. Our AI Development services are designed to make processes faster and smarter.

  • Case Study: Bond: We helped users achieve 3x more second dates by developing a GPT-4 powered conversation analyzer that provided real-time advice with 89% accuracy.
  • Case Study: Mamazen: We built an AI-powered content recommendation engine that matched parent stress patterns to mindfulness sessions, achieving an 85% monthly retention rate.
  • Case Study: Kommu: We implemented an AI chatbot for personalized onboarding that increased completion rates by 73%.

4. Focus on Growth and Monetization

Many agencies consider their job done when the app launches. We believe that is when the real work begins. Statistics show that 95% of apps never break $500/month in revenue. We aim to put our clients in the profitable 5%.

We offer specialized app growth and monetization strategies. Whether through subscriptions, in-app purchases, or marketplace dynamics, we design the product with revenue in mind from day one. For example, with the app Parrot Club, we helped launch a 2-sided marketplace that acquired 1,000 paid users in the first month and converted 10% of customers to annual subscriptions.

5. Proven Reputation and US-Based Excellence

MetaCTO is proudly U.S.-based, founded by experienced technologists in Los Angeles. We do not rely on hidden offshore development arms. Our commitment to quality is reflected in our 5.0 out of 5 rating on Clutch, where clients consistently praise our ability to deliver on time and adapt to changing needs.

“MetaCTO stood out for their ability to quickly grasp the intricacies of our product and translate that into clean, scalable solutions.” — Founder & CEO, Kommu

“They were responsive to changing needs and delivered key milestones on schedule.” — Founder & CEO, iWorkflow

Conclusion

Work & Co and WillowTree are undeniably successful agencies that have helped shape the digital portfolios of the world’s largest brands. Their acquisition by Accenture and TELUS International, respectively, cements their status as safe, albeit expensive, choices for massive enterprise undertakings.

However, for businesses that require agility, aggressive growth, and direct access to high-level technical strategy, MetaCTO offers a superior alternative. By combining the discipline of experienced US-based CTOs with advanced AI development and a focus on rapid market entry, we help our clients do more than just launch software—we help them build thriving, monetizable businesses.

If you are ready to transform your vision into a market-ready application without the bloat of a traditional agency, partnering with MetaCTO ensures your project is built right, from day one.

Ready to Build Your App?

Turn your ideas into reality with our expert development team. Let's discuss your project and create a roadmap to success.

No spam 100% secure Quick response