There are sites like eangel where you can email your text/documents to and they proofread and correct it.

Their current plans are quite cost-efficient:

$5/month for 1785 reviewed words or 830 corrected characters
$14/month for 5385 reviewed words or 2415 corrected characters
$34/month..

You get a bonus of 700 words by using this link: https://eangel.me

2017-03-19T10:06:39+00:00