Open channel3.gg in Chrome. Click the Install icon in the right side of the address bar:
Click Install when you get this prompt.
After installation, you can pin to the Windows taskbar alongside your other favorite apps.
Open channel3.gg in Safari. It has to be Safari.
Tap the Share button in the middle of the footer.
Tap Add to Home Screen.
Tap Add on the prompt.
BOOM. You're done. iPhones try to act like it's "just a website bookmark" because they want everyone to go through the App Store but really it functions just like an app... Full screen, moveable icon on your home screen. All of it.
Enjoy.
Install the Channel 3 app from the Google Play Store.
I played this daily for probably 5 years after launch. The first summer it came out was magical, seeing everyone out and about playing. Later when raids came out I made new friends doing raids at lunch time. The core collectathon mechanic is addictive as always. Lots of great updates have come over the years. I only give it 4 stars because it is still a simple mobile game, but it's one of the best. I've been playing a lot less lately but still open it up on my phone here and there.