You can on any iOS device without jailbreaking. Look into AltStore or Sidestore. The caveat is that you can only sign 3 apps at a time, and must resign these apps every week - which is done over your WiFi to a PC running AltStore server.
If you have a $99/year Apple developer account, you can use AltStore to sign as many apps as you like, and you only need to resign once per year.
not on US devices without jailbreaking, but I think you can on EU devices.
You can on any iOS device without jailbreaking. Look into AltStore or Sidestore. The caveat is that you can only sign 3 apps at a time, and must resign these apps every week - which is done over your WiFi to a PC running AltStore server.
If you have a $99/year Apple developer account, you can use AltStore to sign as many apps as you like, and you only need to resign once per year.