You can train the skill for GlyphHack of Ingress with this app.
Selecting level from 1 to 5, and glyph with 1 to 5 letter(s) are shown
and you will be required to draw glyphs as shown.
The glyph questions that are actually shown on Ingress are listed.
If you find any bugs, please notify me :
Twitter : @yamazaki_sensei