The crucial issue is how trustworthy the recommendations are that the farmers receive via their smartphones. Eduardo Nakasone and Maximo Torero have reviewed many of these apps and come to mixed conclusions. Clearly, the consequences of bad advice become bigger the more far reaching m-services envision to be. The International Crops Research Institute for the Semi-Arid Tropics, ICRISAT is currently developing an app that promises to guide farmers through the entire farm season. For example, using algorithms and artificial intelligence, farmers are recommended, what to plant. Based on their decision the next steps are suggested, such as what fertiliser to use. This is reminiscent of the 1960s and 1970s, when experts thought they knew more about farming than local farmers, which often led to disastrous results. Today, our hope again lies in the knowledge of experts, this time combined with algorithms and artificial intelligence. The ICRISAT app aims to consider local elements.