This app does not access your location in any way. It does not use GPS, and will not get your relative sea level. However you can adjust it manually. This app tracks and records your altitude based on the barometric sensor in your phone. Not all phones have a barometric sensor. If your phone is capable you can use this app to access it and record readings.
Altimeter is completely safe to download. Angstrom Metrology, LLC is the creator of this application which can be found in the Tools category. Google Play displays that the app is rated 4.4 by its users.
Altimeter has been downloaded and set up by over 1K users and the latest update was released on Aug 29, 2016. Ads are a part of this application. Download the setup package of Altimeter 1.0 that is provided for free and check out users' reviews on Droid Informer. The app is designed for Android 4.0.3 and above.