The Ergonomics of Design
Tapworthy Apps
Intuitive Design
Obey Physical Laws
Mirror the World
Rule of Thumb
Controls on Bottom
Primary Content on Top
More: Secondary Nav
Use What's Familiar
Big Buttons
Overcrowding
Avoid Clutter
Simplicity
The One Thing
Scroll vs. 'Flip'
Magic Number 44
Iconic 88
Tapworthy Design
• Mirror rules of physical world
• Put primary controls in thumb's "hot zone"
• 44 is the magic number for tap areas
• Be generous with space, don't crowd design
• Keep controls in reach, avoid scrolling
Case Study:“The Spendometer”
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