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Our statistics and charts at Castle DealNews tell us that you're probably reading this on your cell phone. While we're loath to tell you to stop browsing our site, once you're finished, you could do worse than amusing yourself with these, the five best free mobile apps we've seen this week:

($20 off cartographical fun)

($3 off guitar tabs and lessons)

($1 off this physics puzzler)

($3 off this dictaphone substitute)

($5 off this photo animation suite)