An possible limitation of the app could be its inability to precisely monitor every walking activity, particularly when users are indoors or in places with weak GPS reception. Users who depend on the app for financial slots pay by mobile billrewards may find this to be frustrating as it could lead to missed earnings or inaccurate distance calculations. Over time, some users might also find it difficult to maintain their motivation, particularly if they do not see a large financial return on their walking efforts. The fact that long-term behavior change may not result from merely using financial incentives to encourage physical activity is another potential disadvantage.