5.7 vortec timing

[kponch]

Can someone tell me what android app can do a crankshaft sensor relearn and time a 5.7 vortec distributor? I changed crankshaft sensors in 2 GM vehicles. There is no codes. But both doesn't seem to run the best. Was told they need a crank sensor relearn. Plus I changed a distributor in 2000 yukon 5.7 vortec. It has no codes. Idles great. But under load it has a miss. What told distributor is off a couple degrees. And need a special scan tool or android app. To set the correct timing. So please could someone tell me best and easiest app that can do both? Crankshaft sensor relearn and 5.7 vortec timing. Thank you