What's New

- Fission is now compatible with the newest Macs, the M1 Mac Mini, M1 MacBook Pro, and M1 MacBook Air.

- Fission now respects the user-specified system-wide “Accent” color on MacOS 10.14 (Mojave) and up. It also supports Big Sur's new “Multicolor” option, with an appropriate, app-specific gold.

- Fission now shows sample rates in Hz, rather than kHz, for consistency across all Rogue Amoeba apps.

App Description

Crop and trim audio, paste in or join files, or just rapidly split one long file into many. Fission is streamlined for fast editing. Plus, it works without the quality loss caused by other editors, so you can get perfect quality audio even when editing MP3 and AAC files.

If you need to convert formats, Fission can do that too, with simple export or batch conversion to the MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV formats.

Don't forget ringtones! Use Fission to make great custom ringtones for all your contacts.

Fission makes audio editing fast and easy - get it now!

iPhone Screenshots

(click to enlarge)

Fission screenshot 1 Fission screenshot 2 Fission screenshot 3 Fission screenshot 4 Fission screenshot 5

App Changes

  • June 19, 2014 Initial release
  • August 15, 2014 New version 2.2.2
  • September 14, 2015 New version 2.2.4
  • September 14, 2015 Price decrease: $31.99 -> $28.99
  • September 22, 2015 New version 2.2.5
  • February 20, 2016 New version 2.3.0
  • November 09, 2016 New version 2.3.1
  • June 14, 2019 New version 2.4.5
  • September 24, 2019 New version 2.4.6
  • November 05, 2019 New version 2.5.0
  • November 12, 2020 New version 2.6.1
  • December 10, 2020 New version 2.7.0

Other Apps From Rogue Amoeba Software, Inc.

Airfoil Speakers Touch Airfoil Remote Legacy Airfoil Speakers Touch for iOS 4 Legacy Airfoil Speakers Touch for iOS 5 Airfoil Satellite Airfoil Satellite TV