doubleudot UG (haftungsbeschränkt)
Apps, platforms & shops that make money – by the owner of Europe's largest bike rental marketplace.
doubleudot is a software and marketing agency from Germany, building apps, platforms and online shops for start-ups and SMEs across Germany, Austria and Switzerland since 2017. Our founder Jonas Müller also owns ListNRide, Europe's largest marketplace for bike rentals (38,000+ bikes, 3,300+ rental partners, ~2,000 cities, 11 languages, a seven-figure number of users per year). He took over the company at a heavy loss and made it profitable – with a platform rebuilt entirely in-house. That is the standard we apply to every client project. What we do: • Native iOS and Android apps – since 2016 • Web apps, marketplaces and booking platforms (React, Next.js, Node.js, PostgreSQL) • Payments with Adyen and Stripe, incl. Apple Pay and Google Pay • Online shops with Shopify, Shopware and WooCommerce • SEO for classic and AI search, programmatic SEO with thousands of landing pages • Social media, video and performance ads (Meta, Google) • AI features, e.g. AI assistants for customer service via WhatsApp, phone and chat Selected results: • ListNRide – Europe's largest bike rental marketplace, rebuilt in-house • ZS24 and GewerbeAnzeige24 – our own SaaS products that fully automate vehicle registration and business registration, with ~5,000 landing pages each • +30–50% conversion for a city pass provider with ~€20M revenue • ~€150,000 revenue from ads in 12 months for a renovation company One point of contact, fast delivery, fixed prices per milestone. GDPR-compliant, hosted in Germany. 5 people in their team
Speaks German, English
6 projects in their portfolioSortlist member since 2026
Founded in 2017
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Services
6 services offered by doubleudot UG (haftungsbeschränkt)
Description Schnelle, mehrsprachige Websites auf unserem eigenen CMS – sicherer und einfacher zu pflegen als WordPress. Mobile First, SEO-optimiert, DSGVO-konform und barrierefrei nach WCAG 2.1 AA. Auf Wunsch mit Anfrage-Funnel, Preisrechner und Terminbuchung.Skills in Website Creation (6) Ergonomy (UX/UI)CMS DevelopmentLanding Page DesignResponsive WebsiteWordPressWebsite DesignWork in Website Creation (1) Client in Website Creation (1) VelorooSports | local
Learn more about Website CreationDescription Technisches SEO, programmatisches SEO und Optimierung für KI-Suche (llms.txt, strukturierte Daten). Eigene Plattformen mit je rund 5.000 Landingpages bundesweit. Conversion-Optimierung mit nachgewiesenen +30–50 % mehr Abschlüssen.Skills in SEO (7) Local SEOKeyword ResearchSEO BacklinkingSEO AnalyseOn-Page SEOSearch Engine OptimizationContent managementWorks in SEO (3) Clients in SEO (3) ListNRide (LR Mobility GmbH)Travel & Leisure | internationalZS24 (eigenes Produkt von doubleudot)Automotive | nationalGewerbeAnzeige24 (eigenes Produkt von doubleudot)Government & Administration | national
Learn more about SEODescription Native iOS-Apps (Swift) und Android-Apps – seit 2016. Von der Idee über UX/UI-Design und Entwicklung bis zur Veröffentlichung im App Store und bei Google Play. Inklusive Backend, Zahlungen (Apple Pay, Google Pay, Stripe, Adyen) und Admin-Bereich. Festpreis pro Meilenstein, alle zwei Wochen eine lauffähige Version.Skills in Mobile App (13) Mobile AppAndroid App DevelopmentHybrid Mobile App DevelopmentiOS App DevelopmentiPhone App DevelopmentMobile App PublishingSwift App DevelopmentHybrid Mobile AppiPhone App DevelopmentMobile Application Development+3Work in Mobile App (1) Client in Mobile App (1) ListNRide (LR Mobility GmbH)Travel & Leisure | international
Learn more about Mobile AppDescription Onlineshops mit Shopify, Shopware und WooCommerce – inklusive eigenem Theme, Zahlungsanbietern und Marketing zum Launch. Referenz: Onlineshop des Deutschen Sportverlags, von der Idee bis zu den ersten Verkäufen.Skills in E-commerce (8) Conversion Rate OptimizationShopify MarketingShopify DevelopmentShopwareWooCommerceOnline storePayment Gateway IntegrationeCommerce DesignWorks in E-commerce (2) Clients in E-commerce (2) fuumeRetail | nationalDSV Deutscher SportverlagMedia | national
Learn more about E-commerceDescription Instagram, TikTok und Meta-/Google-Ads aus einer Hand – mit eigener Videoproduktion. Beispiel Handwerksbetrieb: von null auf bis zu 10.000 organische Aufrufe pro Video und rund 150.000 € Umsatz aus Anzeigen in 12 Monaten.Skills in Social Media (6) Google AdvertisingPerformance MarketingInstagram MarketingSocial Media MarketingTiktokSocial Media Video Production
Learn more about Social MediaDescription Individuelle Plattformen, Marktplätze und Buchungssysteme mit React, Next.js, Node.js und PostgreSQL. Referenz: ListNRide, Europas größter Marktplatz für Fahrradverleih (38.000+ Räder, 11 Sprachen, siebenstellige Nutzerzahl) – komplett inhouse gebaut. Schnittstellen, Payment, KI-Funktionen und Hosting in Deutschland.Skills in Software Development (8) Web ApplicationNode.jsReact DevelopmentArtificial IntelligencePostgreSQL DevelopmentAPI DevelopmentDockerNextJSWorks in Software Development (4) Clients in Software Development (4) ListNRide (LR Mobility GmbH)Travel & Leisure | internationalZS24 (eigenes Produkt von doubleudot)Automotive | nationalGewerbeAnzeige24 (eigenes Produkt von doubleudot)Government & Administration | nationalfuumeRetail | national
Learn more about Software Development
Team
5 members in doubleudot UG (haftungsbeschränkt)'s team
Story2016 die ersten eigenen iOS-Apps, 2017 die Gründung von doubleudot in Greiz. Seitdem: fride mitgegründet und 2024 verkauft, ListNRide 2025 übernommen und profitabel gemacht, eigene SaaS-Produkte wie ZS24 gebaut. Heute bauen wir Apps, Plattformen, Shops und Marketing für Start-ups und Mittelstand in ganz DACH.
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Details
- HeadquarterIrchwitzer Straße 12, Greiz-Irchwitz, Deutschland
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