It could be better.

Because of its heavy data usage, the total cost of sending SMS by this app is higher than some other alternatives.
Unless any improvement is made on that issue, the current pricing is just too high!

改善の余地有り。
送信時に使用するデータ量が多い為、結果的に他の安い方法に比べて費用が高くついてしまう。
iPhoneをパケット量を抑えながら使いたい人にはお勧めしません。

Mighty Pooh about Jelly SMS