Not for acoustic bass
Response from developer
For acoustic bass please try our tuning app designed for bass "Bass Tuner+ Tuning Simplified". The reason we can't support multiple octaves is to preserve the simplicity of the user experience and make sure only the correct string is being shown as tuning.
Needs a feature
Bad Tuner
Response from developer
Ortizlop, I'm sorry it sounds like you were having issues with Guitar Tuner+! This tuner is designed for extremely fine tuning, and because of this in a noisy environment the needle may jump due to additional tones it picks up in the room. In these cases please set the background noise filter to 'high'. This should solve your issue.