No Big Deal is designed to track steps as accurately as possible, while eliminating cheating, only using the pedometer from your mobile device. There are different ways of tracking steps, and each has its benefits.
Additionally, fitness accessories such as wearables often are attached to your wrist for the whole day whereas your mobile device might leave you from time to time. Therefore, the amount of steps recorded by wearables are often higher.
We are a small passionate team and want to deliver the best possible product, but understand that there are still some things that can be improved. We'll get there soon!