[출처]
1. http://time.com/money/3422643/smart-new-uses-old-iphone/
2.7 cool things to do with an old iPhone
3.5 Super-Useful Things You Can Do With Your Old iPhone
4.14 SMART USES FOR OLD IPHONES BESIDES SELLING THEM ON EBAY

[활용]
0. 애플의 교환프로그램
– trade-in service (aptly named the Apple Reuse and Recycle Program)
1. 시계
-Standard Time (유료 앱)
–Alarm Clock for Me
–Sleep Cycle alarm clock
2. 음악 도서관 Music Library, media player
3. 리모콘 remote control, Universal Remote
– Apple Remote App (애플TV, iTunes)
4. 감시 시스템 Surveillance system, home security camera
–Presence (공짜)
–Manything (free)
–AtHome Camera
5.요리책
-My Recipe Book(유료)
-Big Oven (free)
6.별도 저장 공간
–USB & Wi-Fi Flash Drive
7.녹음기
-Voice Recorder
-Voice Record Pro
8.문서복사기
-Genius Scan
-Doc Scan
9.애기 관찰 Baby monitor
–Cloud Baby Monitor ($3.99)
10.차량 추적기
-InstaMapper (유료)
–GPS Location Tracker
11.친구나 가족에게 선물하기
12.훗날을 위해 안전한 곳에 보관
13.네비게이션 permanent dash-mounted navigation system
–Sygic :GPS navigation, offline maps
14.CAR’S ENTERTAINMENT SYSTEM
15.DIGITAL PHOTO FRAME
16.BIKE COMPUTER
–Strava
–Runtastic Mountain Bike Offroad Route Tracker