Depende nga sa phone's internal memory. Kapag mababa, palagi talagang mag-prompt ang "insufficient space". Some apps bagamat transferable sa SD card, still uses a certain amount in phone's internal memory. When and upon downloading, kailangan din ng malaking amount of space sa internal memory to sink-in or install the app you're downloading. You must take a look in its specs about the RAM and ROM of a smartphone. Mas maganda kung ang RAM mo ay 1GB at ang ROM ay 4GB or 8GB(mas better).