Apps like Airfoil Design

Here are some great alternatives to Airfoil Design by Charles Bilodeau-Bérubé :
aFoil
aFoil
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Gear Design 3D in TrueGeometry
Gear Design 3D in TrueGeometry
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SW FEA 2D Frame Analysis
SW FEA 2D Frame Analysis
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Flying Paper Airplane Origami
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4D Wallpaper: Fluid Simulation
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CADShaper-CAD 3D Model Design
CADShaper-CAD 3D Model Design
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Magic Fluid: Magic Wallpaper
Magic Fluid: Magic Wallpaper
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SW Truss
SW Truss
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SimplePlanes
SimplePlanes
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Engine Pro
Engine Pro
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Flying Calmly
Flying Calmly
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Live Wallpaper: Magic Fluid
Live Wallpaper: Magic Fluid
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Beams Design
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Xtreme Soaring 3D
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