Iran → South Korea
Iran plugs
Type C
Type FSouth Korea plugs
Type CType FShared plug types: C, F
Compatibility: Compatible
Voltage — Iran 230V — South Korea 220V
Voltage difference is small. Most electronics will work safely.
Device compatibility (phones)
Phones almost always support 100–240V, so yours should work safely. Check your charger label to confirm.
You likely only need a plug adapter (if socket shapes differ). Voltage is close between these countries.