Reverse any video — picture and sound — right on your iPhone. ／ カメラロールの動画を、映像も音も逆再生に。
Is my video uploaded anywhere? No. Everything is processed on your device. The App works offline and has no account system.
Why is my reversed video only 30 seconds long / why is there a watermark? The free version processes the first 30 seconds and adds a small watermark. The one-time PRO purchase removes both limits and unlocks Boomerang and speed options.
I bought PRO but it is not applied. Open Settings (or the PRO screen) and tap "Restore purchase" while signed in with the same Apple Account used for the purchase.