I think the fact that it’s very chemically stable is likely a factor as well so it can be stored for effectively an infinite amount of time & it won’t degrade/react, it’ll still be gold.
I use this on a daily basis on Android, works pretty well & is available through Fdroid:
BOOM HEADSHOT NOSCOPE
A large-breasted frog it would seem.
I use Aard 2 with Freedict & Wiktionary dictionaries which works pretty well for me: https://github.com/itkach/aard2-android
Available on F-droid