Put Advent Overflow on your phone

iPhone

In Safari

1. Open adventoverflow.com in Safari.
2. Tap the three dots next to the address bar, then tap Share. (On older iPhones, tap the Share button at the bottom of the screen.)
3. Scroll down and tap Add to Home Screen.
4. Leave Open as Web App switched on, then tap Add.

Use Safari for this. Other iPhone browsers may not offer it.

Android

In Chrome

1. Open adventoverflow.com in Chrome.
2. Tap the three dots at the top right.
3. Tap Add to Home screen. On some phones it says Install app.
4. Tap Install (or Add).