Frequently asked questions about EnhanceVid, the video enhancer for iPhone and iPad.
Three things — ① Raise the frame rate (24→30fps, 30→60fps): new frames are computed between the originals so motion looks smooth ② Raise the resolution (HD→Full HD, Full HD→4K): the picture is enlarged with crisper detail ③ Reduce noise: grain from low light is cleaned up. You can combine them.
Yes. You can convert 4K 60fps to 30fps or 4K to Full HD — handy for a smaller file to share or for a more cinematic look.
Yes. More frames or more pixels mean more information, so the file grows. 30→60fps is roughly 1.3×, and raising the resolution adds more. Going down makes it smaller. The estimated size is shown before you start.
No. They are computed from the motion between neighboring frames. They look natural in most scenes, but very fast motion or overlapping objects can look soft or misaligned for a moment. At scene cuts nothing is blended — the previous frame is repeated instead.
Noise reduction only appears when your device supports it. Support depends on the device (chip), even on the same iOS version.
Nothing. EnhanceVid never changes or deletes it — the result is saved as a new video. Videos picked from Photos are saved to Photos; videos picked from Files go to their folder or to the app's folder (Files → EnhanceVid).
The change is added to the original name — for example IMG_1234_60fps.mov, IMG_1234_4K.mov or IMG_1234_60fps_4K.mov. With noise reduction only: IMG_1234_enhanced.mov.
Yes. 10-bit HDR (HLG) and Dolby Vision video shot on iPhone is saved as HDR.
Videos from Photos and from the Files app (On My iPhone, iCloud Drive and more). Besides MOV and MP4, MKV, WebM and AVI are processed on device too.
It depends on length, resolution and device, and the estimate is shown before you start. Upscaling to 4K or raising the frame rate of 4K video takes the longest — several times the video's length even on a recent iPhone.
Yes. Enhancement keeps the graphics processor busy, so keep the app on screen. If you leave, it pauses where it is (the reason appears on the Lock Screen), and it resumes automatically when you come back.
Long videos warm up the device and use battery, so we recommend charging while you enhance. iOS adjusts the pace to the device's condition.
A comparison opens when it's done — play the original and the result side by side, compare specs (resolution, frame rate, bitrate) in a table, and see quality scores. Scores compare only frames that exist in the original, because new frames have nothing to be compared against.
No. It's needed only to pick videos from Photos and save results there. Without it you can still use everything with videos from the Files app.
No. All enhancement happens on your device, and videos are never uploaded to us or third parties. The app shows ads and uses analytics to stay free — see the Privacy Policy for details.
Yes — every feature is free with no limits. The app is supported by ads.
Found a bug or need help? Send us an email — we read every one.
iOS 26 or later · iPhone and iPad (runs as an iPad app on Apple silicon Macs).