I just got around to seeing how SkySafari does with the prediction of the Near Earth Asteroid 2104 JO25. The answer is pretty well. I used the Minor Planet Center's ephemeris service to check the location around closest approach (I used April 19th at 6AM Mountain Daylight Time). I got this comparison:
SkySafari: RA: 15 41 00.2 Dec: 66 31 35.3
Minor Planet Center: RA: 15 41 07.9 Dec: 66 34 31
This is very good agreement and will place the object within a high power 0.2º field of view We are both predicting a mag 11.2 object at that time.
This image shows a 1º field of view centered on the MPC's coordinates. You can see the asteroid is very nearby.
I should point out that when you search for the asteroid you will get two entries for 2014 JO25. The second one has the most recent orbital elements. I'm not sure why the MPC has both. If you look near the bottom of the object Info for whichever you select you can see the epoch of the elements. Choose the one for this year.