Arullo
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Diffco

Verified company

Mobile and Web development partner you can rely on

San José, San José Province (CR)

Trusted by

Selected clients

GGood2GoFFlashGridMMi3 SecurityMMazeHHappier+5 more

Capabilities

What they do, who they serve, and the stack they build on.

Selected work

A snapshot of recent projects and outcomes.

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What clients say

Arullo AI

Diffco is known for

high client satisfactionexpert technical teamtimely deliverytransparent processes

Clients consistently praise Diffco for their exceptional technical expertise and ability to deliver projects on time and within budget. Their proactive communication and transparent processes enhance client satisfaction, leading to successful outcomes and long-term partnerships. Clients also appreciate the dedicated teams and tailored solutions that meet specific business needs.

Client testimonials

“Their commitment to excellence ensures our platform remains robust and adaptable to our evolving needs. With their expertise, we’ve successfully enhanced our offerings, making our collaboration highly effective.”

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Pete Gualfetti

Head of Design and Integration, Good2Go

“We were impressed by Diffco’s approach to the development process and how they engineer new solutions. They look ahead, learn about your product and strategy, and develop sophisticated, highly functional solutions.”

S

Stas Tushinskiy

CEO & Co-founder, Instreamatic

“Diffco supplied us with the skilled engineers we needed to meet our ambitious goals. Their account manager proactively addressed concerns, ensuring our expectations were met.”

R

Razvan Spatariu

Senior Software Engineering Manager, Multiverse

“Diffco’s expertise and engineering approach increase the reliability and efficiency of our IoT infrastructure. Diffco has proven to be a reliable partner with exceptional expertise. I highly recommend their services.”

D

David C Thompson

Senior Digital Initiatives director, ChemTreat

“The quality and consistency of the team make Diffco stand out from other vendors.”

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Art Danielov

CEO, Flashgrid

“They were communicative, consultative, and helpful. They went above and beyond all the way. What an amazing team. I will work with them again and again.”

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Don Markland

CEO, Accountability Now

Reviews

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Diffco is a Silicon Valley-based software development firm specializing in AI-driven mobile, web, and custom software solutions. With over 16 years of experience, they have a proven track record of accelerating business growth for clients ranging from startups to Fortune 100 companies.

  • Clutch rating: 5/5 from 31 reviews
  • Client diversity: Serves industries like healthcare, finance, and media
  • Notable clients: American Express, Starbucks, Whole Foods, and Nokia
  • Awards: Recognized as a top AI development company and top app developer in California
  • Team strength: Offers dedicated project teams and transparent processes

Their commitment to excellence and client-driven approach ensures successful project outcomes and long-term partnerships.

Locations

San José Province, San José, Costa Rica

Headquarters

Rates & ideal client

What this firm typically charges and who they're built for.

Min project budget

$25,000+

Hourly rate

$50 – $99/hr

Team size

51–200

Social media

Industry Recognition