iPhone Screenshots


You’re unique, so why assume a treatment that works for someone else will work for you?

Welcome to the N1 app, an easy-to-use tool to help you investigate the impact of different interventions on your health. This app is developed and managed by the Institute for Next Generation Healthcare at the Icahn School of Medicine at Mount Sinai.

The N1 app helps you to complete a good n-of-1 study, by assisting with:
• what outcomes to measure
• which treatments to try
• when to take each treatment
• how to track your results

The program then uses sophisticated statistics to analyze your data to determine which treatment is most effective for you. At the end, you get a personalized visualization of all of the data you collected during the experiment, along with an answer about what worked best for you.

What works best for you might be completely different from what works best for someone else!

- iPhone 6S or later, running iOS11 or later
- You must be a U.S. resident and 18 years or older
- You must provide your consent on a per study basis

Additional eligibility criteria are described within the app on a per study basis.

Ratings and Reviews

4.7 out of 5
11 Ratings

11 Ratings

Noah Ch ,

I knew I loved coffee - now I can prove it!

I’ve collected a lot of data about myself over the years using various wearable gadgets (steps, sleep, heart rate) and software (locations, screen time), but I’ve struggled with how to make use of that data. This platform has, for the first time, helped me get answers! It’s so interesting to see how my morning coffee impacts my thinking (it was even more than I thought!) and compare that to tea - let’s just say, I’ll be sticking with coffee :)

All of the hard work of designing the experiment is taken care of for you. All you have to do is follow the prompts from the app, and at the end you get a cool visualization and description of your results.

Can’t wait for more studies to launch!

polufnali ,

Love It!

Really amazing App - connects those want to conduct studies studies and those who want to be participants in a supper user-friendly platform. The data gathered isn’t just shared with those conducting the studies but instead the participant receives all the result and personalized feedback. I’m participating in the coffee study now. I drink a ton of coffee and eager to see the impacts. Highly recommend this App

bennnnnybooo ,

Well done!

Kudos to the INGH team at Mount Sinai! This app is great and so easy to use! To the average person, a medical study may sound intimidating, but they've made the N1 app super user friendly, providing you invaluable information in a very digestible form. Looking forward to more interesting studies and updates to the app in the future.


Next Generation Healthcare, corp.
105.4 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Frequent/Intense Alcohol, Tobacco, or Drug Use or References
Frequent/Intense Medical/Treatment Information


  • Family Sharing

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

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