Ireland and France are two of the countries people most often shortlist together when moving to the EU. Below is an honest side-by-side on the things that shape daily life, with the stronger country marked on each row. On these measures Ireland comes out ahead on 6, France on 4.
Rent is the clearest split: a one-bed runs about EUR 1,700 a month in Ireland against EUR 1,000 in France, so France saves you roughly EUR 700 every month.
Typical net pay is EUR 2,800 a month in Ireland and EUR 2,200 in France, putting Ireland EUR 600 ahead before anything else is counted.
What actually matters is the money left after rent: EUR 1,100 in Ireland against EUR 1,200 in France, which is where France pulls ahead.
You will get further on English alone in Ireland than in France, which matters most in the first year, before the local language clicks.