Perdisco - Learn Latin & Greek 4+

The app is free and that is very much appreciated. However, I have some ideas 💡 for nice features:

• As I am a German, I would welcome a translation m🇩🇪
• A tutorial on how to properly use the app
• Although the ancient languages aren’t spoken anymore, audio-clips for pronunciation would help with memorising words

Best,
…

PERDISCO offers very useful exercises and interactive quizzes focussing on vocabulay (Latin-English, Latin-Dutch), conjugation, declension, historical dates and facts, Roman numerals, and a whole test series by which you can consolidate what you’ve learned so far.

However, the app creates non-existing Latin word forms (October 2022), especially of some verbs that have no passive voice or just an impersonal passive in the 3rd person singular:

- solere, soleo, solitus sum “to be accoustomed to do” (semi-deponent): the app wants you to conjugate non-existing passive forms in the present stem like *soleor, *soleris, *soletur, *solemur, *solemini, *solentur;

- parere, pareo, parui, paritum (supine) “to appear, to obey”: PERDISCO wants you to form the future perfect of this verb in the passive voice for all six persons like *paritus ero/eris/erit, *pariti erimus/eritis/erunt, although it is only possible to form an impersonal passive in the 3rd person singular - paritum erit;

- like all Latin infinitives, the perfect passive infinitive in its standard form is neuter, e.g. vocatum esse (not *vocatus esse); this form only changes in a sentence containing an accusative with infinitive (vocatum/-am/-um esse, vocatos/-as/-a esse) or a nominative with infinitive (vocatus/-a/-um esse, vocati/-ae/-a esse), so *vocatus esse is just a possible variant appearing under certain circumstances;

- latere, lateo, latui “to conceal, to hide, to lie hidden” has no supine stem and no passive, but PERDISCO wants you to create a non-existing perfect passive infinitive *latitus esse;

Additionally, the app contains a few incorrect word forms which I consider to be typos:
- *tenitus = tentus (perfect participle of tenere, teneo, tenui, tentum)
- *facinoria, *facinorium = facinora, facinorum (nom./acc. pl., gen. pl. of facinus, facinoris n., 3rd declension, no i-stem)

I only checked the Latin section, and the things I pointed out above are just some mistakes I notice here and there. Maybe there are more, maybe there aren’t. But I invite the creator(s) of PERDISCO to make an update of this very useful app, so that absolute beginners don’t learn and create forms that simply don’t exist. Thank you.