“rouse” vs. “arouse”

A friend of mine and I were debating the usage of "arouse" and "rouse" in a specific sentence. I do understand that arouse and rouse are nearly same in meaning; still would like to know more properly.

Which of the following sentences makes more sense?

The launch of the app would be very rousing.

The launch of the app would be very arousing.

Solution 1:

According to Oxford Dictionary, (I've picked the most appropriate definition), rouse means Make angry or excited

Arouse is defined as Evoke or awaken (a feeling, emotion, or response)

The subcategory for arouse is almost identical to that of rouse, so it could be used in the same context. However, arouse is almost always used in a sexual context. I think in your case the most "correct" sentence would be the one with rouse.

Edit: aaaidan made a point that arouse is almost always sexual, rather than usually.

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