With myBag app you can all detailed information about your backpack.

For example, you can add a camping backpack by entering its image, weight and price information. Then you can enter the data of items in the bag such as the weight, price and expiration date. Then you can see how many items there are in your bag and their total weight and price. You will also be able to see the items that have expired. You can easily see your missing items by keeping your bag updated. You can easily share your bag as pdf with your friends. You can support this app by expressing your opinions in the comment section.
You can use for;
Camping, Outdoor, First aid, Hunting, Fishing or Survival Backpack

Even you can add your friends bags.

You can download from Google Play. It will be avaliable soon on App Store.