Hi, Which app do you suggest using for travel planning within Paris city? For eg, say I have to be at Louvre at say 10 am and I need to leave my place at 9 am...the app should suggest the best way from my apt to Louvre considering all modes of transport
Bonjour RATP (apple or android) is the official Paris public transportation application with intinerary builder. That's one option.
I personally just use Google Maps which seems to work well and gets all the alerts/updates from the RATP via their API so it's up to date as well on construction, delays, issues, etc.