Hey
Go to Jubifile City, talk to the creator who is in the middle of Jubifle, on the straight road, and he'll say to talk to the 3 clowns, and obtain Coupen 1, 2 and 3.(found in key items if you want to double check). After that's done, go to the same place and he'll give you the poke-tech!!
to get a pokewatch in jublife city
You get it from a women on 1FL of the Pokemon Centre in Eterna City.
In Pokemon pearl, diamond, and platnium, when your done at the trainers school in Jublife city
You can get one in Solaceon Ruins with the dowsing machine app on the poketech.
find clowns in jublife city then talk to poketech guy
If you have the marking map it will track mesprit, just don't fly.
If you are talking about in Jublife city, you go talk to the guy who you first talked to about the Poketech and you get the Poketech. Then you go up then to the right and out the ramp where the guy wouldn't let you go before on to the first town.
go to jubilife city and talk to the poketech directer (he is on the first floor once you walk into the poketech building). you must have at least 5 or 7 badges first
You CAN'T
it app for
after you get the national pokedex 2 new pages of the poketech will be added then you will see a flashing head that's him hope thet helped
There is no such app, there is only an app which can show you where roaming Pokemon, such as Mesprit and Cresellia are, called the Marking Map (which can be obtained from the president of the Poketch company after obtaining the Veilstone badge).