How to
![Telehealth Tutorial cross-platform Multiple devices showing a telemedicine chat application with conversations between doctors and patients.](https://www.pubnub.com/cdn/3prze68gbwl1/YImhMz8bJU4tjn1gXtryj/65e6df2e74858ef07bb70088dde5f026/18-new2.png?w=360&h=200&fit=)
Chat
How to Build Cross-Platform Chat Applications with PubNub
If your team is developing a cross-platform application you have a number of options to choose from but whichever approach you take, from web-only to cross-platform frameworks, PubNub can easily incorporate chat into your app.
![How-to Build Vue Chat Apps](https://www.pubnub.com/cdn/3prze68gbwl1/3unV0nzOBgNrauUqfluAd7/9b623bcba4978b74233e305899d71c9a/How-to-Build-a-Chat-App_1200x630_-1.png?w=360&h=200&fit=)
Chat
How to build a chat app using HTML, CSS, Vue, & JS
Read our complete guide to build a chat app using HTML, CSS, Vue, and JS. Read this and our other information building interactive chat apps.
![How to Create a Real-Time Delivery application How to Create a Real-Time Delivery application](https://www.pubnub.com/cdn/3prze68gbwl1/RNxrnJIn0KOh3pO1CFTWz/0e126b1a4300d0b6dca68d5e9b01ad03/Real-Time-Delivery---Image.png?w=360&h=200&fit=)
Real-Time
How to Create a Real-Time Delivery Application
For any delivery solution, the end user experience will depend on providing real-time updates on vehicle location, delivery time and delivery status
![how-to real-time user counter image](https://www.pubnub.com/cdn/3prze68gbwl1/j6Hf0llsWpOj6BVPctvue/dd9914fcf6f37958cf487c8d22c8b39f/how-to-online-users.png?w=360&h=200&fit=)
Real-Time
How to Build a Real-Time Counter of Active Users
This how-to will explain how to add a real-time counter of active users to any application, what to consider while building this type of feature, and how PubNub can make it easy.
![Real_Time_Geolocation_1200x630.jpg Real_Time_Geolocation_1200x630.jpg](https://www.pubnub.com/cdn/3prze68gbwl1/CcwAhmNWk9ti8Qcu9sNSf/7a69c45170e28cddb6733ce8d63cb2af/Real_Time_Geolocation_1200x630.jpg?w=360&h=200&fit=)
Geolocation
How to Explore Real-time Geolocation Solutions
This how-to will explain real-time geolocation services for developers, what to consider while building geolocation features, and how PubNub can make it easy to stream and use real-time location data.
![How-To: Add PubNub to Your Unity Game to Power Online Features](https://www.pubnub.com/cdn/3prze68gbwl1/71v1G8YDuat1GVvyCcnT5p/cd303b4cee6e8e362046ef6e772cf15b/Screen_Shot_2022-10-20_at_5.22.08_PM.png?w=360&h=200&fit=)
Gaming
Add PubNub to Your Unity Game to Power Online Features
Follow this how-to and learn how you can add PubNub to your Unity game to power online features.
![Alexa Skills with PubNub Architecture Alexa Skills with PubNub Architecture](https://www.pubnub.com/cdn/3prze68gbwl1/YSdmLmTnXIRz2UWq5bJSz/62cbdd8ab096757634378abbb5848124/architecture.png?w=360&h=200&fit=)
Collaboration
How to call PubNub from Alexa
Amazon’s Echo is the market leading smart speaker and we see an increasing number of customers want to integrate Alexa into their PubNub solution
![How to thumbnail: Build interactive RPGs](https://www.pubnub.com/cdn/3prze68gbwl1/5Sr1Cwrc07JBM4C4GWJnb4/88c1d83e2b69b80684f8a9c3b53e67ac/How-to-Build-Interactive-RPG-Games-_1200x630_-3__2_.png?w=360&h=200&fit=)
Gaming
How to Build Interactive RPGs
Read our complete guide on building interactive role-playing games. In this guide, you’ll learn to build interactive elements for online games.
![Leaderboard how to](https://www.pubnub.com/cdn/3prze68gbwl1/61gv2QfsvRRRulUHoxkH2Z/a13a363b39a676fcdcbdaba1264758e8/Leaderboard---Banner-Image.jpg?w=360&h=200&fit=)
Gaming
How to Make Your Own Leaderboard
Read our complete guide on making your own multi-purpose digital online leaderboard for social apps, games, and more.
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