Mobile App Development · Tourism · Case Study
Retro APP BV . NETHERLANDS
Retro APP BV needed its audio tour guide app to track a tourist's exact location, calculate the best route, and still work smoothly when the network connection didn't.
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What if your phone could guide you through a city like a local friend walking beside you, even when the signal drops?
That's the experience Retro APP BV wanted every tourist to have. Cynoteck built the app that delivered it.
We've helped enterprises transform operational complexity into scalable, high-impact technology solutions. Tell us your challenge, and we'll map the path to success.
Retro APP BV, based in the Netherlands, provides fully interactive, pre-recorded audio tour guide services on the iPhone, currently live in Berlin, Prague, Vienna, and Amsterdam, and steadily expanding to new cities.
Retro APP BV wanted every tourist to feel like they had a knowledgeable local guide in their pocket, wherever the app expanded.
Guiding tourists accurately meant solving GPS tracking, route calculation, and patchy network connectivity, all at once, without breaking the experience.
An iOS app combining map integration, location-based notifications, and narrated tour content, ready to expand into new cities as Retro APP BV grows.
A virtual tour guide works only if it's accurate wherever the tourist is standing, with or without a signal.
The client wanted a virtual pocket guide that provided tours while keeping information accurate and up to date across multiple destinations.
The app needed precise GPS tracking and real-time route calculation, a challenge that only grows harder as it's added to new cities.
Managing varying network connectivity issues meant the app couldn't assume a strong signal was always available.
Delivering rich media content smoothly, along with real-time route calculation based on the user's location, added significant technical complexity.
Cynoteck designed the Retro app around the tourist's actual location, from the on-screen map to the notification that pops up at just the right moment.
Here's what changed for Retro APP BV's users once the app launched across four cities.
We've helped enterprises transform operational complexity into scalable, high-impact technology solutions. Tell us your challenge, and we'll map the path to success.
The real win for Retro APP BV wasn't just an app. It was a genuinely useful travel companion, ready to expand city by city.
The Retro app offers a central hub for travel information, making it easy to find location details, routes, and key travel data.
A smart recommendation system helps tourists discover the best spots to visit in each city.
With route optimization, users plan efficiently and reach their destinations via the shortest available paths.
“They were excellent at creating custom solutions to ensure that the general ledger fits all of our company's needs.”
— Michael Rose, Staff Accountant, Corporate Finance, Clearview Group, LLCThis project reflects how Cynoteck approaches every location-based app, designing around the user's real-world position, not just a map on a screen.
Our experts build apps that stay accurate to a user's real-time location, not just a static map pinned to a city center.
We design for real-world connectivity, including patchy signal, so the experience doesn't break the moment a user steps underground.
Our professionals give non-technical admins a simple way to keep location content fresh, without needing a developer for every update.
We architect apps so that adding a new city means configuration, not a rebuild from scratch.
We know how to deliver audio and rich content without it feeling choppy or slow on a mobile connection.
77% of our clients on this kind of project return for more, often as they add features or expand into new markets.
Whether you're adopting AI, optimizing your CRM, or building something from the ground up, we'll help you make it happen, and turn your vision into reality.
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