Gain Curve

Turn any video into a reel with the sound fixed. Open a video from Photos or Files, tap Make it ready, and save a reel for Instagram, TikTok or Shorts, with the sound set for phones. • Before and after in one tap: a 12-second reel that switches from Gain Curve to exactly as recorded and back, at the moment the difference is easiest to hear. • Presets that pick themselves: when a file opens, Gain Curve hears whether it's voice or music and picks a preset for you, clean-up included. Change it any time. • Video: the picture plays above the waveform, in step with the sound. Export the same video with the new sound, the picture untouched. • Reels: add a title, the curve, the take as dots, captions of what's said, or crop a wide video to 9:16. A live preview shows the reel before you save it. • Choose the part: the whole video, or the best 60, 30 or 15 seconds, found for you. Or drag the band to pick your own. • Fades: the reel fades out at the end, picture and sound together, and can fade in too. • Once unlocked, your reels end without our card, unless you turn it on. • Loop: repeat a whole recording or just a part, and flip between before and after while it plays. • Captions are made on your iPhone or iPad with Apple's speech recognition. Nothing is uploaded. • More presets: voice memo, talking to camera, podcast, interview, audiobook, singing, piano, classical recital, lesson or practice room, choir or church, live gig on a phone, guitar, strings, jazz and more. • Better noise: when the curve lifts a quiet passage, the hiss under it is taken back down. • Progress shows as you work, with cancel. On iOS 26 an export keeps going when you switch to another app. • Redeem an offer code from About.