iPhone Screenshots


Musical instruments can be easily damaged by large and rapid changes in humidity and temperature. Now you can protect your investment by simply placing D’Addario’s Humiditrak or TKL's Safe & Sound with Blustream Technology inside your instrument or case.

Humiditrak and Safe & Sound use a patent-pending Bluetooth sensor to provide a constant stream of temperature, humidity, and impact data to the free smart phone app to alert you of hazardous conditions that can lead to diminished playability, costly repairs, and lost value of your instrument. When Humiditrak detects dangerous conditions, notifications are sent to all your devices allowing you to take corrective action before damage occurs.

Cataloging and monitoring a collection of instruments is so easy and convenient, you’ll want one for every instrument you own! D'Addario is known for innovative, problem-solving, quality musical accessories. D'Addario accessories offer a complete line of award-winning accessories including cables, picks, tuners, capos, straps, humidifiers, maintenance tools and more.

Find out more about the Humiditrak at www.daddario.com/humiditrak/.

What’s New

Version 1.4.5

This update is critical! It includes a fix for network issues that were causing slow app launches, data syncing problems, and linking to fail.

Ratings and Reviews

3.2 out of 5
14 Ratings

14 Ratings

thebig ,

It was good, then bad, now working again.

App no longer refreshes data on IPhone X. Have seen 10 hours without any data updated. Only way for my data to sync is to completely shut down app by swiping up and x’ing it out and then restarting app. If this app is no longer going to sync automatically and give warnings it should at least have a manual refresh button somewhere.
Update: Since the developers response the app is back working and updating by itself. Maybe in the future a message can be put in the update notes about internal updates that will cause the app to not work for a couple weeks.

Developer Response ,

We have completed all the updates and the app should now perform as expected. The updates, which were two-fold, included an app release and internal changes. If you continue to encounter similar issues, please contact us at support@blustream.io.

Dave Bartlett ,

It forgot who I was

UPDATE. I have never had a developer respond to a review before. I am very impressed with their desire to address my comments and my problem. Consequently, I have up upgraded my rating. The app does work quite well and I am still very pleased with the data it collects and the ease of use. Other than the hiccup I encountered with logging on, the app has performed perfectly. I have every intention of continuing to use my Humiditrak and this application. Thanks!

After nearly 2 years of use, my app stopped recognizing me. It required me to log in then wouldn’t accept my password. Then all I got were error messages when I tried to reset my password. I could find no way to contact any form of customer support. I even tried to uninstall and reinstall the app.

The only way I could get my device working again was to set up a new account with a different email. Now I lost all my historic data but I was able to get the Humiditrak working.

While I still like and still use the device I was disappointed of the process I had to go through to restore my device to working order and the inability to contact any type of customer support when the automated password restart failed.

Developer Response ,

We apologize that you encountered this issue. Support contact information is available on the both the D'Addario and Blustream websites.

The historical data is still available in our database for your original account. So if you would like to access it, please contact us at support@blustreamcorp.com.

Mariezx2 ,

Working Great!

It was very easy to get set up. I did have to look at a lot of the website pics to see where they installed the device at in the case. Would like a suggested install in the user manual. The app loads great and is tracking everything! Thanks for making this device!


D'Addario & Company, Inc.
44.7 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2019 Blustream Corp.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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