If you belong to the tribe of the Pokemon hunters, you may need more technologically advanced assistance on top of the tools offered by the basic application, installed on your smart phone.
There are several free services which can offer you such assistance:
1. PokeOnMap (https://pokeonmap.com/)
Find all Pokemon near you (or a selected target location) in real time for Pokemon Go. Pokemon nearby will be marked along with their appearance timer on the map. These are real time Pokemon locations, meaning they are currently live and can be found exactly at the marked spots. By moving the map, you can change the pokemon area to be scanned. For the more advanced and demanding players, you have ability to select only the particular Pokemon on map.
2. Catch that! (https://skiplagged.com/catch-that)
The free assistant, developed by famous cheap ticket finder application team, helps you to locate the live Pokemon in your area or area you are choosing for virtual exploration. You get the pokemon, and the time when it is going to disappear.
3. Poke Radar (https://www.pokemonradargo.com/)
Poke Radar for Pokemon GO is a community based assistant application for discovering the location of any Pokemon that's been found by other players. You can view all of the nearby Pokemon in your area that have been discovered by yourself and other players on the map, along with the times of day they were found.