For basic pitch only
A generic tuner may be enough, but it will not help much with full acoustic piano workflow.
Buying-decision guide
For acoustic piano service, the best app is not the one that just finds pitch. It needs usable live feedback, stretch-aware workflow, and record-keeping that holds up across repeat visits.

A generic tuner may be enough, but it will not help much with full acoustic piano workflow.
Choose an app with strobe-style feedback, stretch analysis, and saved piano profiles.
Use a tool that stores piano sessions and exports tuning reports.
Yes, if the app is designed for acoustic piano work rather than generic instrument tuning.
Choosing based only on note detection instead of workflow depth, stretch handling, and record keeping.
It fits technicians and serious piano workers who need more than a simple pitch needle.
Install Piano Tuner : Tempera if you need live tuning, stretch sampling, and saved piano records in one app.