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Zelfi: The Quiet Giant of German Mobile Gaming
A 17-person team building a $1.5M revenue engine from Rhein-Main
In the heart of Germany's tech corridor, a 17-person agency quietly powers mobile experiences that generate $1.5M in annual revenue. Zelfi isn't chasing VC funding or viral fame—it's building sustainable native apps for Android and iOS with surgical precision.
"They're not building a unicorn—they're building a profitable, focused mobile development powerhouse."
The Native-First Philosophy
While many agencies chase cross-platform shortcuts, Zelfi bets on native development for Android and iOS. Their tech stack reveals this commitment: jQuery for web, Tailwind CSS for UI, and PHP for backend—classic, battle-tested technologies that prioritize performance over trends. This isn't a startup chasing the latest framework; it's a specialist firm that understands that for mobile gaming and apps, native performance matters more than development speed.
The Traffic Paradox
With only 667 monthly visits, Zelfi's web presence seems minimal—until you analyze the intent. Their top keyword is 'step app' with 1,870 monthly searches, suggesting they're targeting specific app development queries rather than broad brand awareness. This isn't a company that relies on inbound marketing; it's a referral-driven business where 48% of traffic comes directly, indicating strong word-of-mouth and repeat clients in the Rhein-Main region.
The company's leadership structure reveals a hands-on technical culture. Yves Weilandt (Team Lead Android Developer) and Keyoumars Kayhanfar (Android Developer) aren't just executives—they're builders. This technical-first leadership suggests Zelfi prioritizes code quality over salesmanship, a rarity in an industry where agencies often overpromise and underdeliver.
- Native Android/iOS development as a core competency, not an afterthought
- Rhein-Main regional focus with global technical standards
- Technical leadership from developers, not just business executives
- Profitable without external funding (revenue/employee ratio: ~$88K)
- Specialized in mobile gaming and app development, not generic software
The Anti-Startup Success Story
Zelfi proves that sustainable growth beats hyper-scaling in mobile development
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Zelfi - App-Entwicklung aus Rhein-Main. Android und iOS - Zelfi AG App-Entwicklung
Wir brennen für die native App Entwicklung für Android und iOS. Ihre Wünsche treffen hier auf unsere Expertise.
Zelfi - App-Entwicklung aus Rhein-Main. Android und iOS
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About zelfi.com
Wir brennen für die native App Entwicklung für Android und iOS. Ihre Wünsche treffen hier auf unsere Expertise.
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Technology Stack
zelfi.com uses 10 technologies across their website including PHP, Cloudflare, Zendesk, and more.
Programming Languages
PHP
Cloud & Hosting
Cloudflare
Customer Support
Zendesk
Analytics & Marketing
Google Tag Manager, Google Analytics
Web Standards
Twitter Cards
UI Libraries
Ant Design
Traffic & Audience
zelfi.com receives approximately 667 monthly visitors. The website has a bounce rate of 44% with visitors viewing an average of 1.0 pages per visit. Users spend an average of 0:00 on the site.
The majority of zelfi.com's traffic comes from .
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