Different jobs
| Noise Reducer | Krisp | |
|---|---|---|
| Main use | Cleaning recorded audio and video | Live noise cancellation in calls and meetings |
| Platforms | iPhone and iPad | Mac and Windows (plus mobile apps for meeting notes) |
| Recorded files | Yes | No official noise removal for files found |
| Pricing | Free to listen; Lifetime, Yearly or Weekly | 7-day trial, then Core from $8 per month billed yearly |
Krisp details from krisp.ai, checked on 19 October 2026.
Live calls on iPhone
For calls on iPhone you may not need any app: Voice Isolation in Control Center blocks ambient noise during phone calls, FaceTime and many call apps.
Recordings
For a recording that already has noise in it, open it in Noise Reducer, listen to the cleaned version and save it. It works offline and never uploads the file.
Questions and answers
Does Krisp work on recorded audio?
Krisp is built for live audio. We found no official Krisp feature that removes noise from recorded files.
Is there a free Krisp alternative?
On iPhone, Voice Isolation is built in and free for calls. For recordings, Noise Reducer is free to try.