UnicodePad lets you input every character in Unicode. And input string can be copied to the clipboard or input directly by Mushroom. You can find out where selected character is in list. By long clicking, larger character and code point will be shown. Favorite characters can be memorized.
If you can't see special characters, you have to get a font such as Noto font and select it. You can download Noto fonts from Google.
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.Download F-Droid