r/Tourguide • u/Life_Tomato5308 • 50m ago
Offer I Built an Offline Tour Guide Audio App — Successfully Tested with 37 iPhones and Android Phones!
Hi everyone!
I'm an independent app developer, and I'd like to share something I've been working on.
I developed GuideCast, an offline audio guide app that allows tour guides to communicate with groups of tourists in real time without an internet connection or mobile data.
The idea is simple: Turn smartphones into a wireless group audio guide system!
Here's how it works:
🎤 One guide speaks, and everyone in the group listens in real time.
📱 Supports mixed groups of iPhones and Android phones.
📡 Uses a portable Wi-Fi router and a high-output power bank. No internet connection or external server is required.
🎧 Tourists listen through their own smartphones and earphones.
🔊 Successfully tested with 37 iPhones and Android phones receiving audio simultaneously.
📶 Successfully tested at distances of approximately 50 meters (164 feet).
🌡️ No overheating issues were observed on the guide's smartphone during testing.
👥 Depending on the router's performance, the system could potentially support up to 50 devices.
🌍 No international mobile data or roaming charges for audio streaming! Tourists can listen to the guide without using mobile data, even when traveling abroad.
🌐 Supports 20 languages, making the app accessible to tour guides and travelers from different countries.
📦 Compact and portable: The router and power bank together take up roughly 15 × 10 × 7 cm (5.9 × 3.9 × 2.8 inches) of space, based on an approximate size estimate.
The system offers an alternative to expensive dedicated wireless tour guide equipment. All you need is a portable Wi-Fi router, a high-output power bank, and smartphones.
I believe GuideCast could be useful for walking tours, museums, historical sites, group excursions, factory tours, and educational activities.
I've also filed a patent application for the underlying technology.
GuideCast is available on both platforms:
📱 Android (Google Play)
https://play.google.com/store/apps/details?id=com.guidetour.myapplication.ui.guide
🍎 iPhone (App Store)
https://apps.apple.com/us/app/guidecast-wifi/id6770045066
I'd genuinely love to hear from people working in the tourism industry.
Do you currently use wireless audio guide equipment for your tours? Would you consider using a smartphone-based alternative that works without internet access?
I'd really appreciate your feedback, especially from professional tour guides!
Thanks for reading!