You pay or it's worthless – StableCam: Video Stabilization & Slo-Mo Camera Review

In-app purchases includes being able to get a movie file from the app, and being able to remove the watermark. They let you upload your video with their watermark to your social media accounts. Free advertising for them, nothing useful for you. This should be a paid app.
Review by Childish shsh on StableCam: Video Stabilization & Slo-Mo Camera.