A Unique Light, Sound & Cognitive Therapy For Alzheimer’s Disease And Dementia


• Use 40Hz light therapy alone or combine with 40Hz sound and brain games
• You favorite cognitive games designed for people with low computer skills: Sudoku, Tic-Tac-Toe, Clocks, from very easy to challenging
• A personalized Life Coach that includes Guided Meditations, Exercises, Daily Planner, and more

New research suggests that light and sound delivered at a certain frequency —40 flashes or clicks per second — appear to restart the natural 40Hz gamma rhythm of the brain, improve the brain functions and diminish toxic levels of Alzheimer’s-related proteins.

Separately, research has also shown that cognitive exercises could have a major effect on improving memory. The synergistic combination of light, sound and cognitive therapy utilized in AlzLife has the potential to improve the brain’s function better than either of these therapies alone.


AlzLife delivers a combination of 40Hz light therapy, 40Hz sound therapy, cognitive exercises, and a personalized Life Coach in a single, easy-to-use, convenient package.


The most recent research about light therapy for Alzheimer’s disease appeared in the journal Cell in 2019, entitled “Multi-sensory Gamma Stimulation Ameliorates Alzheimer’s-Associated Pathology and Improves Cognition.” Researchers from MIT found that when mice engineered to exhibit Alzheimer’s-like qualities were exposed to flickering lights and 40Hz sounds for one hour a day, their brain functions improved and toxic levels of Alzheimer’s-related proteins diminished. In addition, the 40Hz sound appeared to improve cognitive and memory skills.


We recommend using your AlzLife app for one hour a day. The MIT research shows significant improvement after only one hour of light and sound exposure. If the 40Hz gamma frequency flicker is too bothersome, start using the app with the light therapy settings set to a minimum. Most people will get used to the flicker over several sessions. If you stop noticing the flicker, you may want to increase the intensity within the app’s Light Setting. The best recommendation for any therapy is to use it in moderation and make adjustments based on how you feel.

The game portion of the therapy was specifically designed for memory and cognitive improvement. Start the cognitive therapy with games you are familiar with, then continue with as many games as possible. We recommend starting at an easy level and slowly increasing the game difficulty to a level that is challenging but not uncomfortable.


The light therapy function of AlzLife requires the refresh rate of your device’s screen to be a multiple of 40Hz. At this time, the list of devices with the required refresh rate only includes iPad Pro models released since 2017 that support 120Hz. All other devices (including all other iPhones, iPads, smartphones, and laptops) operate at 60Hz. Frequencies other than 40Hz have not been shown to produce the same therapeutic effect.


The FREE version of AlzLife provides access to light therapy, sound therapy and easy level of each game. More challenging levels require a tuition. The most popular tuition plan is $79.99 yearly and pays for the development of new cognitive activities that are added each month.
• Tuition will be charged to iTunes Account at confirmation of purchase.
• Tuition automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
• You can turn off auto-renewal by going to the user's Account Settings after purchase.
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that plan.

Full terms of service can be found at
Privacy Policy:

What’s New

Version 1.12.2

We’re listening to your feedback and working hard to improve AlzLife. Here’s what’s new:
- New Cognitive Assessment tools with longitudinal visualization
- A new Progress Tracker
- 40Hz Sound Therapy (in addition to 40Hz Light Therapy)
- Several new Memory Games
- A new Clock Game
- A personalized Life Coach that includes:
- Guided meditations to help you relax
- Powerful exercises to help you stay in shape
- Daily Planner with a personalized checklist
- Conversation starters to provide ideas for lively conversations

Ratings and Reviews

4.3 out of 5
64 Ratings

64 Ratings

nomadwcd ,

Only for iPad pros 2017 and older

What good is an app that only runs on two devices? I am thankful there was a one month free trial and that I read through the help questions to find out that my brand new 2019 iPad Air cannot achieve the screen refresh rate needed for this software to be effective against dementia. That’s a huge deal and should be the very first thing you read about this application before you buy it.

Update: raise stars to 4 for great customer service.
The company contacted me to provide contact information for a company that sells the 40hz lights. There's also a 15% discount. With shipping it was less than $43.

Developer Response ,

Dear Nomaddew,
Your comments are absolutely right, unfortunately we're limited to iPad Pro to fully support the 40Hz light while the sound and cognitive activities are fully functional. We're are looking for alternative solutions and happy to announce the we've approved external lights provided by our partner Gamma Light Therapy for use with AlzLife. These can be acquired on their site at a discount
Kind regards,
Team AlzLife

Tree top1 ,

AlzLife review

I’m a 75 year old male. I was diagnosed after a PET scan with Alzheimer’s three years ago. I participated in supervised studies, that lead to insufficient findings.
My wife found this app on the ongoing Government Alzheimer’s study report. There is presently a blind study going a close to my home. But we chose to purchase the app, so I would get the full benefit of the program. Even though I am admittedly at the beginning of this disease. I firmly believe that using this app with all the tools provided has delayed the progression. The app also provides individual testing to monitor progression. I strongly recommend this app.
Claude Forest

heronstone ,


i’m 74
over the past several years, i’ve noticed “senior moments” a couple times per month.
e.g. i’d go to the kitchen and then not remember what i was going to get
this isn’t a big deal really
that’s happened occasionally most of my life
but it’s been more frequent recently
i read about the 40 hz phenomenon in some science publication and built my own 40 hz sawtooth wave generator in software

i posted it several hours per day for about a week

i noticed no particular effect from using it

but... it’s been more than 6 months since then and i’ve not had a single “senior moment” since then

i now use this app instead of the 40 hz file i created

i’m not sure how often to use it now because, i still haven’t had any “senior” episodes

so i do it occasionally

App Privacy

The developer, Alzheimer's Light, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info

Privacy practices may vary, for example, based on the features you use or your age. Learn More


42.5 MB

Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.


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Age Rating
Frequent/Intense Medical/Treatment Information
In-App Purchases
  1. Monthly $9.99
  2. Yearly $79.99
  3. Lifetime $199.99


  • Family Sharing

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

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