for the iphone: known cheat that work for me for money and lp (after the new year 2013)
open sims free play.
close it out.
go to "settings" > "general" > "date/time".
turn off set automatically.
change the year to 2000
double click the home button and hold the sims icon until red and white minus appears.
push, the app should be gone (it's not deleted)
open the sims app.
once its on fully, close it out.
go back to time to "setting" > "general" > "date/time"
select "set automatically"
then go back to the sims app.
depending on your level you will receive 1k, 5k, 10k etc. enjoy, its that simple.
repeat as needed and all of your sims needs will be full! hope this helps.
for LP : I only know of the record player move under "social" in the home store. (you will need neighbors)
fill up the sims home with record player and watch your town worth go up. each time you reach your goal you will receive 5 LP its time consuming but its a free way to earn LP.
complete goals faster by changing the time to the hours needed by following the money Cheat above.. instead of changing just the year change the time as well and about a day or 2 later. so if your growing vegetables change the year and date to a couple days later and from am to pm and your needs are met, you have more money and your vegetables and whatever tasks are done! : )
ill try some other cheats and see if they work.