Weightloss

Hi guys, Both me and my wife weight between 100-105 kg. Oru baby is 1 year old. We want to loose weight but we can hardly access gym due to tight schedule. We both have fatty liver , wife has got gall bladder stone and she is a feeding mother.

We want to reach first milestone around 80-85 kg which was out weight 2 years back.

Is there any free app to plan and guide weightloss. We heard like calorie deficit diet can help. Also cutting down the sugar and junk food.

Any thoughts?