Watermark unless you buy the app twice. – Slo-Square - Slow Motion For Instagram and Vine Review

When you purchase an app you would expect it to be the "purchased" version of the app. Sadly you have to spend another buck once the app is already downloaded in order to get rid of the watermark. Classic Bait-n-Switch technique. Do not buy this app.
Review by OfficialDeveloper on Slo-Square - Slow Motion For Instagram and Vine.