The stacked bar chart below shows US app store revenue per active iPhone. Game apps make up the majority of spend. Revenue per iPhone increased 14% between 2015 and 2016. The data column to the right of the chart provides the growth for each category.
Stacked bar chart showing US app store revenue per active iPhone; focus on top 5 categories
This chart was built using PowerPoint and the Aploris add-in on a Mac.
The left bar chart below provides details on the share of webpages that are served to mobile phones from 2009 to 2014. The right stacked bar chart examines which mobile browser platforms were most commonly used in 2014.
Stacked bar charts examining share of webpages served to mobile phone and primary mobile platforms
Mobile share of web traffic is growing rapidly from just 0.7% in 2009 to 28.9% share in 2014. Note that the absolute increase of webpages being served is not considered in the chart as only percent values are displayed. Roughly 70% of websites viewed on mobile phones in 2014 were viewed on Apple Safari or Android Webkit. We set the height of the second stacked bar chart equal to the height on the 2014 column in the first bar chart. This helps the reader visually identify how the data is related.
The 100% area chart below shows the market share for smartphone vendors based on the numbers of units. Market share for the largest vendors, Samsung & Apple, have been shrinking over the last 4 years. The relative height of each segment (row) at each year (column) depicts the market share.
100% area chart for the market share of units shipped by the largest smartphone vendors
The 100% area chart is an effective way to show market share without indicating the change in the absolute market size. If we also wanted to show the growth in the overall market, a regular area chart would have been an obvious choice.