Those elusive, rare Pokemon can be found through the use of additional apps for both iOS and Android. These extra apps utilize Pokemon player experiences, showing where others have already located and caught some of the harder to find Poke-types.
Obviously, you have to be careful when downloading add-on apps. There have been reports of malware contained in some Pokemon-related apps. But, the following apps have been tested to work and contain no danger of malware.
- Poke Radar - Poke Radar for Pokemon GO is an assistant app for discovering the location of any Pokemon that's been found by other players. Cost = FREE
- Pokemon Go Maps Pro – Find the rarest Pokemon, Pokemon Go has offer, find hidden gyms, find rare checkpoints. Cost = .99