A normal evening walk for 28min 3.5km walk (3366 steps) generates 14.28kcal with a nett profit of 10.09 kcal or 10 USD. This is after a repair cost of 4.15kcal. A small improvement in term of profits as compared to my walk yesterday. One step at a time. One need to know each step to take in order to optimise your investment in time and money. This is not any quick rich scheme.
Chestbox (need good luck to open decent gems)
While i was walking, I also picked up a lvl 3 chestbox. Chestbox will need some kcal to open and it might contain little kcal or gems. This depends on its level and your luck. I picked up 1 chestbox in each of my past 3 days of walk but it is nothing exciting yet.

Join Me To Kick Start This Step.App Gaming.
Note: Do your own due diligence. I just shared my exploration experience with you here in BBS community.
If this is your cup of tea, you can try to explore the below.
1 (a) For Android phone user , go to Google Play Store and install Step.App.
1 (b) For iOS phone User, go to apple store and install Step.App.
2. Enter your invite code : 45BC5B6 when you sign up to register your Step.App. By doing this step, you will get a bonus energy and/or gem for free by . I can get energy too. We support each other.
3. Quickest way to start this M2E journey is to acquire a right sneak which suits your exercise profile. My recommendation is to get a shoebox with quality walker (1-6km/h) or a coach sneak (1-20km/h) unless you are a fast runner to consider Hiker (4-8Km/h) or Racer (8-20km/h) sneak. Explore its marketplace for the available shoeboxes and gems. Some will want faster process and willing to spend more to get a good heads up.
CAUTION: Be careful of scammers. Go to only the legit Google playstore or apple store to install the above app.

