Which are the most reliable 3rd party apps for android to test memory, cpu and Battery ?

Hi All,

I am looking for an app which shows the CPU, Battery and memory utilization on Application Basis. 

I know some apps like System panel, android sys info. etc.

In I-phone we have Instrumentation, but in android we have to depend on 3rd party apps.

Are they reliable ? Do they produce accurate results ? 

Even our DDMS does not give application wise CPU and memory graphs.

Do you have any better apps, which is more reliable ?

Please suggest here.

Do reply,

Regards,

Divya