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