1. 5 PRINCIPLES OF KILLER MOBILE APPS:
HOW TO THINK ABOUT
PRODUCT DESIGN FOR IOS
CHIA HWU & EVAN KIRCHHOFF, QUBOP INC.
SPRINT OPEN SOLUTIONS CONFERENCE 2011
NOV 4 2011 - WWW.QUBOP.COM

2. CUMULATIVE USERBASE, EARLY 2011
VS.
NOV 4 2011 - WWW.QUBOP.COM
(IN MILLIONS)

3. 1. GREAT DESIGN IS INVISIBLE
2. CONVENTIONS KEEP MOVING
3. REMOVE CHOICES
4. SOCIAL IS NOT MAGIC
5. COUNT YOUR CLICKS
NOV 4 2011 - WWW.QUBOP.COM

4. 1. GREAT DESIGN IS INVISIBLE
2. CONVENTIONS KEEP MOVING
3. REMOVE CHOICES
4. SOCIAL IS NOT MAGIC
5. COUNT YOUR CLICKS
NOV 4 2011 - WWW.QUBOP.COM

5. ACCUMULATING
TINY CHANGES
From http://stam-design-
stam.blogspot.com/2011/10/
ios-5.html

6. ACCUMULATING
TINY CHANGES
From http://stam-design-
stam.blogspot.com/2011/10/
ios-5.html

7. From http://stam-design-
stam.blogspot.com/2011/10/
ios-5.html

8. THINK OF APPLE AS YOUR INITIAL AUDIENCE.

9. NOV 4 2011 - WWW.QUBOP.COM

10. THE PROMOTIONAL REAL ESTATE IS VERY LIMITED.
NOV 4 2011 - WWW.QUBOP.COM

11. APPLE’S HUMAN INTERFACE GUIDELINES DO NOT DESCRIBE THEIR TASTES:
PULSE NESS BAND OF THE DAY
NOV 4 2011 - WWW.QUBOP.COM

12. (IGNORE THE ADVICE AGAINST SPLASH SCREENS)
PULSE NESS BAND OF THE DAY
NOV 4 2011 - WWW.QUBOP.COM

13. CUSTOM UI THAT NOBODY NOTICED
(NOT THE NATIVE CAMERA INTERFACE)
NOV 4 2011 - WWW.QUBOP.COM

14. 1. GREAT DESIGN IS INVISIBLE
2. CONVENTIONS KEEP MOVING
3. REMOVE CHOICES
4. SOCIAL IS NOT MAGIC
5. COUNT YOUR CLICKS
NOV 4 2011 - WWW.QUBOP.COM

15. THE 5-TAB SOCIAL APP WITH CENTER ICON
INSTAGRAM PATH COLOR
NOV 4 2011 - WWW.QUBOP.COM

16. HIPSTER SOUNDTRACKING FOODSPOTTING
THE CENTER TAB ANSWERS THE QUESTION,
“WHAT DO I DO WITH THIS APP?”
NOV 4 2011 - WWW.QUBOP.COM

17. EVERNOTE PINTEREST PHOTOVINE
THE CENTER TAB ANSWERS THE QUESTION,
“WHAT DO I DO WITH THIS APP?”
NOV 4 2011 - WWW.QUBOP.COM

18. FOURSQUARE (PREVIOUS) FOURSQUARE (NOW)
NOV 4 2011 - WWW.QUBOP.COM

19. PULL TO REFRESH
TWITTER BOXCAR FACEBOOK SEESMIC
MESSENGER

20. SIDEWAYS SLIDERS
PULSE COLOR GOWALLA
(LATEST REVISION)
NOV 4 2011 - WWW.QUBOP.COM

21. THE ICON GRID (EARLY 2011)
FACEBOOK LINKEDIN YELP SCVNGR
NOV 4 2011 - WWW.QUBOP.COM

22. THE ICON GRID IS DYING (LATE 2011)
FACEBOOK LINKEDIN YELP
NOV 4 2011 - WWW.QUBOP.COM

23. 1. GREAT DESIGN IS INVISIBLE
2. CONVENTIONS KEEP MOVING
3. REMOVE CHOICES
4. SOCIAL IS NOT MAGIC
5. COUNT YOUR CLICKS
NOV 4 2011 - WWW.QUBOP.COM

24. DO THE RIGHT THING
NOV 4 2011 - WWW.QUBOP.COM

25. NOV 4 2011 - WWW.QUBOP.COM

26. SOUTHWEST AIRLINES IPHONE APP
(NOVEMBER 2011)
NOV 4 2011 - WWW.QUBOP.COM

27. ASSUME NOBODY READS ANYTHING
NOV 4 2011 - WWW.QUBOP.COM

28. ASSUME NOBODY READS ANYTHING
NOV 4 2011 - WWW.QUBOP.COM

29. (EXCEPT IN JAPAN)
NOV 4 2011 - WWW.QUBOP.COM

30. MOBIMILEAGE:
THE BATTLE FOR ZERO CONFIGURATION
NOV 4 2011 - WWW.QUBOP.COM

31. NOT THE RIGHT THING:
SET ACCURACY
LOW HIGH
NOTE: HIGHER ACCURACY
REDUCES BATTERY LIFE
NOV 4 2011 - WWW.QUBOP.COM

32. 1. GREAT DESIGN IS INVISIBLE
2. CONVENTIONS KEEP MOVING
3. REMOVE CHOICES
4. SOCIAL IS NOT MAGIC
5. COUNT YOUR CLICKS
NOV 4 2011 - WWW.QUBOP.COM

33. TWITTER IS EASY TO INTEGRATE IN IOS 5
...BUT NOW ALL THE APPS CAN DO IT EASILY
NOV 4 2011 - WWW.QUBOP.COM

34. FACEBOOK FILTERS BY USER INTEREST
...AND THEY MAY NOT BE INTERESTED IN YOUR APP
NOV 4 2011 - WWW.QUBOP.COM

35. (AT LEAST THE FACEBOOK APP NOW PROMOTES IOS APPS INTERNALLY)
NOV 4 2011 - WWW.QUBOP.COM

36. SOCIAL SHARING: NOT IN THE FLOW
NOV 4 2011 - WWW.QUBOP.COM

37. SOCIAL SHARING IN THE UI FLOW
NOV 4 2011 - WWW.QUBOP.COM

38. EVEN BETTER: A FUNDAMENTALLY SOCIAL PRODUCT
NOV 4 2011 - WWW.QUBOP.COM

39. DO YOU WANT FACEBOOK
TO BE YOUR LOGIN?
NOV 4 2011 - WWW.QUBOP.COM

40. DO YOU WANT TO FORCE USERS TO LOG IN?
VS.
NOV 4 2011 - WWW.QUBOP.COM

41. 1. GREAT DESIGN IS INVISIBLE
2. CONVENTIONS KEEP MOVING
3. REMOVE CHOICES
4. SOCIAL IS NOT MAGIC
5. COUNT YOUR CLICKS
NOV 4 2011 - WWW.QUBOP.COM

42. HOW MANY CLICKS?
NOV 4 2011 - WWW.QUBOP.COM

43. 1
NOV 4 2011 - WWW.QUBOP.COM

44. 2
NOV 4 2011 - WWW.QUBOP.COM

45. 3
NOV 4 2011 - WWW.QUBOP.COM

46. 4,5,
6,7
NOV 4 2011 - WWW.QUBOP.COM

47. 8
NOV 4 2011 - WWW.QUBOP.COM

48. NOV 4 2011 - WWW.QUBOP.COM

49. NOV 4 2011 - WWW.QUBOP.COM

50. THINK ABOUT WHEN TO SAVE AND RESTORE STATE
- (void)applicationWillResignActive:(UIApplication *)application
- (void)applicationDidEnterBackground:(UIApplication *)application
- (void)applicationWillEnterForeground:(UIApplication *)application
- (void)applicationDidBecomeActive:(UIApplication *)application
- (void)applicationWillTerminate:(UIApplication *)application
(INCLUDING DIFFERENT SHUTDOWN SCENARIOS)
NOV 4 2011 - WWW.QUBOP.COM

51. THE MOBILE APP USER LIFE CYCLE
-38% 1 DAY
-50% 1 WEEK
-90% 6 MONTHS
NOV 4 2011 - WWW.QUBOP.COM SOURCE: FLURRY

52. THANKS!
CHIA HWU
CHIA@QUBOP.COM
TWITTER: @CHIAH
EVAN KIRCHHOFF
EVAN@QUBOP.COM
TWITTER: @THEEVANK
WWW.QUBOP.COM