Pro Metronome

• Metronome App
• Platform: iOS/iPadOS
• Price: Free, $2.99 for Premium version
• Website

Reaper

• Recording Software Digital Audio Workstation (DAW)
• Platform: Windows/Mac/Linux
• Price: Free 60-day Trial, $60 Full Version
• Website

Garageband

• Recording Software Digital Audio Workstation (DAW)
• Platform: Mac, iOS, iPadOS
• Price: Free

Transcribe!

• Software that allows you slow down, speed up, pitch shift/transpose, and loop sections of audio and video.
• Platform: Windows/Mac/Linux
• Price: Free 30-Day Trial, $39 Full Version
• Website

Soundslice