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Diffco

App development agency in San Jose, California Founded 2008 Reviewed 2026-09-18

San Jose, California software development agency founded in 2008, serving 500+ clients across 1,150+ projects in mobile, web, and AI development. Notable clients include Instreamatic, Maze, NanaWall, and Happier.

How much does Diffco charge?

Diffco lists $50–$99/hr with a $25K+ minimum. Confirm a live quote before you budget — these figures come from public materials reviewed 2026-09-18.

Hourly rate
$50–99
Min project
$25K+
Team size
50-100
Remote
Yes

Compared with 107 listed agencies

Midpoint $75/hr vs directory median $125/hr — the lower third (21st percentile, September 2026).

$50–$99 $15 median $125 $300

See how hourly rates become project totals in the cost guide.

Who is Diffco a good fit for?

Deep Silicon Valley roots with 16+ years building production apps for Bay Area startups and scaleups. Broad AI/ML capability — integrating OpenAI, Anthropic, Gemini, and open-source LLMs into client products. Proven delivery across mobile, web, and enterprise SaaS with 500+ client engagements.

Best for

Startups and growth-stage companies in the Bay Area seeking a full-stack partner for mobile and AI-powered product development. Companies needing rapid iteration on iOS/Android apps with modern AI integrations.

Tradeoffs

Primary dev team operates across distributed global time zones, which can require disciplined async communication. Client portfolio is largely startup-focused, so very large enterprise engagements may not be their sweet spot. Size (51-200) may limit capacity for multiple large simultaneous projects.

About Diffco

Diffco was founded in 2008 in San Jose, California, and has grown into a Silicon Valley-based software development partner with over 16 years of experience. The company specializes in mobile app development (iOS, Android, React Native, Flutter), frontend and backend engineering, and AI-powered product development using models from OpenAI, Anthropic, and Google. Their portfolio spans social media apps, wellness platforms, real estate SaaS, EdTech ERPs, and IoT solutions for clients like Instreamatic, Maze, the Happier meditation app, and NanaWall. Diffco positions itself as a fast AI-enabled development partner for startups and growth-stage companies in the Silicon Valley ecosystem.

Platforms, stack, and industries

Platforms

iOSAndroidReact NativeFlutterWebCross-Platform

Tech stack

SwiftKotlinReact NativeFlutterReactAngularNext.jsNode.jsPythonGoJavaAWSTensorFlow

Industries

HealthcareFintechSaaSE-commerceMediaReal EstateEducation

Also listed in

Directory lists that include Diffco based on platform, industry, location, or segment.

Questions about Diffco

Does Diffco work remotely?
Diffco is headquartered in San Jose, California. Remote delivery is listed as available on this profile. Timezone overlap and communication cadence usually matter more than the office city.
Who owns the code after hiring Diffco?
Full code ownership upon final payment. Work-for-hire agreement standard.
How current is this Diffco profile?
Facts on this page were last reviewed 2026-09-18 from public materials. Rates and minimums can change — confirm a live quote on diffco.us before you budget.

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Verification Methodology

How we vet agencies for this directory

A "Verified" badge appears only when the profile links to reviewed source evidence. It is separate from any paid placement.

1 Portfolio Audit

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2 Company Legitimacy

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3 Code Ownership

Contract and code-ownership terms remain buyer due diligence unless a profile links specific evidence.

4 Client References

Project evidence supports a stated project or client; it does not guarantee delivery quality or outcomes.

Note: "Verified" does not guarantee project success. Always conduct your own due diligence using our Selection Guide.