iPhone Screenshots


Nitelog™ is a wonderful mobile companion for the Z1 Auto™, the lightest cpap machine available anywhere. Use the app to control the Z1 Auto™, monitor sleep quality on beautiful charts, generate compliance reports and share data.

At only 10 ounces, the Z1® is a great everyday machine that is also ideal for travel. Slip the Z1® into the PowerShell® and you have a full night of cord-free sleep. Enjoy!

What’s New

Version 1.1.1

Bluetooth Compatibility Update for iOS 9

Ratings and Reviews

1.6 out of 5
61 Ratings

61 Ratings

Disappointed and Duped ,

Remains Bug-ridden and company non-responsive

The app has been updated for iOS 9.x but remains bug-ridden; with major issues as to usability and accuracy in various reports. Repeated reporting and communications with the company (HDM USA) were actually received with animosity and rejection. Appeals to have the app fixed have gone unheeded for over 7 months. Senior management there were either dismissive and downright rude in their communications or totally ignored repeated bug reports and pleas to fix the issues. The Z1 Auto is great but the company, and this app, are poor.

Hanzi1018 ,

This app is the worst I’ve ever used. Not up to

This app is the worst I’ve ever used. Not up to even the simplest of standards and is a joke for providing information on a medical device!! I love the Z 1 but this app is suppose to tell use compliance to medical requirements it not only fails but fails miserable. Many people that use a cpap are over 35 years old and get up in middle of night to use bathroom. This app stops recording once you get up and doesn’t start again. So I get info for 3hrs instead of 8/10 hours. Maybe because many insurances do not cover the z1 we get this piece of crap app. Fix it you owe it to your loyal z1 customers. If you allow this to continue a better product with great interface will come along and you’ll loss you business. It’s a changing world keep up!! You provide health care.


NetSoar2 ,

Do NOT buy the Z1 Auto CPAP!!!!

I will give the Z1 Auto CPAP five stars for its design, low noise and function, but that’s where the good news end. There are too many glitches and shortcomings on their NiteLog app to name and if you are a driver and or a pilot and your career depends on the CPAP’s compliance reports, do NOT bother getting the Z1 or this app.

My love-hate relationship with the Z1 is evident in that I love the product, its convenient size makes it perfect for travel but I wish the company pulled their head out of... the sand and updated a useless app! I’ve called their customer service a number of times but they are truly useless and unfamiliar with their own products. Long story short, the company stopped supporting their products and abandoned their NiteLog app years ago, so why buy any of their products. Highly disappointed.


Human Design Medical LLC
22.3 MB
Health & Fitness

Requires iOS 6.1 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
You must be at least 17 years old to download this app.
Frequent/Intense Medical/Treatment Information
© Human Design Medical LLC


  • Family Sharing

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

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