BuyBack World is offering AppleInsider readers an extra $10 on Apple trade-ins over $50 with coupon code APPLEINSIDER10 or an additional $20 on trades valued at $200 or more with code APPLEINSIDER20.

Apple itself offers a trade-in credit when buying a new iPhone, which can be used in tandem with the previously mentioned ...

Through Apple's Trade in initiative, you can exchange your old iPhone for credit towards a new Apple product or recycle it for free if it no longer holds value.