I was thinking of bringing a telus iPhone 4S to koodo, and am on a 20$ talk and text plan with koodo currently, can i bring the telus iphone over to koodo or would i have to unlock it, and what plans can i use, (the cheapest) Thanks!
The telus iphone will work on koodo without unlocking, but Koodo will be unable to unlock it for you at a later date if you want to take it anywhere else.
As for plans, you can use any plan Koodo offers. There are no iPhone specific plans. Lowest monthly plan would be $30/month, I think the cheapest prepaid is $15/month, plus the cost of boosters.