Automatically transpose the chords of the songs of the Neocatechumenal Way so that they fit your voice range. Available in Spanish, Italian, Portuguese, English and Swahili!
Test everything on Safari (especially on iOS). I've been neglecting it, but it's the second must used browser after Chrome. These two have 90% of the market (cross-check these stats with NT's Analytics).
isra00
commented
3 years ago 
Test everything on Safari (especially on iOS). I've been neglecting it, but it's the second must used browser after Chrome. These two have 90% of the market (cross-check these stats with NT's Analytics).
Use BrowserStack if applicable.