Total Video Converter
: The go-to free tool for iPhone users to convert voice memos or music files into custom ringtones without needing a computer. How to Install Your New Sound
: Provides over a million user-uploaded ringtones and notification sounds that you can browse by popularity or category. Apps for Custom Reminders
Создайте пользовательский рингтон на iPhone - Apple Support
: An Android app that helps you manage and set custom sounds for specific apps like Telegram, WhatsApp, or your calendar.
Once you have downloaded your preferred sound, follow these steps to set it:
: A great source for professional, royalty-free sound effects. You can find "ding" sounds, electronic pings, and minimalist notification alerts here.
If you want more control or a specific song snippet, these apps allow you to create or manage your own:
: Includes a built-in "ringtone cutter" that lets you turn any audio file already on your phone into a custom notification tone.