Also, the accuracy is not as important as you may think. The app shall motivate to move more, by walking. Depending on the study you chose science suggests between 2000 and 10000 steps a day. That is a huge range and will even put the inaccuracies.
Help again. So first, some searching brought me to this page: https://www.androidauthority.com/best-pedometer-apps-step-counter-apps-for-android-852651/
The chapter about"smartphones vs fitness tracker accuracy" describes the issue a bit.
I also checked with my phone a bit. Test results 100 steps with phone in back pocket 103 steps counted 100 steps with phone in hand moving the hand 73 steps 100 steps moving phone between hand and pocket 112 steps.
The test itself is also not perfect, but time.... You know.
As a hint, I started using the app in the current wave. So I'm not very experienced yet. But as a software tester in Android development I can give some insights on the matter. Step counting itself is likely done somewhere else, like Android or iOS, and the value is read out by Walkspace (developers please correct me). The step counting mechanism also can be inaccurate. For example, taking the bus on a bumpy roads can be counted as steps in some cases. I can try testing it for you tomorrow, as accurately as I possible can without additional tools and only with one phone. I will come back with an average accuracy.
Hi, please also check your "saved steps" on character page. When the app is closed, steps you take will still be counted and be saved in the "saved steps". If there are still saved steps available, the game will count steps doubled until the "saved steps" are empty. Maybe this happened?