PubNub is optimized for maximum performance and reliability, written in pure native C code, using the best methods and built by an expert engineering team with many years of experience delivering scalable infrastructure products. By using PubNub you leverage our team's expertise and operational skills to successfully provide a highly-available, realtime data stream network for fast and reliable messaging and signaling.
Attempting to operate a similar solution targeting a comparable quality on your own is likely to be drastically more costly. Moreover, getting started with PubNub is free so it's very easy on your budget from the start. Even if your application is used by millions of users, you only pay for what you use with our transaction pricing model.
Read more about why PubNub is better than DIY on our blog.