That APOD app is great. Here’s the link that shows the two planets converging over time APOD: 2020 December 15 - Great Conjunction: Saturn and Jupiter Converge (JDM’s link shows the APOD for the current day)
December 23 APOD showing the conjunction, complete with some moons, APOD: 2020 December 23 - Jupiter Meets Saturn: A Red Spotted Great Conjunction