No, Mobile Hotspot comes preinstalled on compatible devices. Depending on your device, it may be in your App menu or Settings. It may also be named something different than Mobile Hotspot, like Personal Hotspot (iOS), Internet Sharing (Windows) or Portable Wi-Fi Hotspot (Google Nexus devices). But these all do the same thing.
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How to Make Your Hotspot Faster Using a Hotspot Booster
How to set up a Personal Hotspot on your iPhone or iPad Apr 27, 2020 How To Make WiFi Hotspot Without Software In Windows
Jul 11, 2018 How to Turn Your Phone Into a Wi-Fi Hotspot | PCMag Samsung. Below you can see what it looks like on a Samsung Galaxy S8 running Android 9.0 Pie. …