Brain Training 40Hz - AlzLife 17+

40Hz Gamma Light, Sound, Games

Alzheimer's Light

Designed for iPad

    • 4.5 • 155 Ratings
    • Free
    • Offers In-App Purchases



Brain Training with 40Hz Gamma Light and 40Hz Sound


• Use 40Hz gamma light alone or combine with brain games
• 40+ cognitive games designed for people with low computer skills: Sudoku, Tic-Tac-Toe, Clocks, and other brain games, 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 and improve the brain functions.

Separately, research has also shown that cognitive exercises could have a major effect on improving memory. The synergistic combination of 40Hz gamma light, sound and brain training games has the potential to improve the brain’s function better than either of these approaches alone by starting a positive feedback loop: 40Hz light could initiate neuronal synchronization that could trigger improved cognitive function, that, in turn, could trigger more neuronal synchronization.


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


We recommend using your AlzLife app for one hour a day. If the 40Hz gamma frequency flicker is too bothersome, start using the app with the light 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 Settings.

Start 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 40Hz gamma light function of AlzLife requires the refresh rate of your device’s screen to be 120Hz. Devices with the required refresh rate include iPad Pro 2017 and newer and iPhone 13 Pro and newer. All other devices (including all other iPhones, iPads, smartphones, and laptops) operate at 60Hz.


The FREE version of AlzLife provides access to 40Hz gamma light, 40Hz gamma sound, and easy level of each game. More challenging levels require a subscription. The most popular subscription plan is $79.99 yearly and pays for the development of new cognitive activities that are added each month.
• Subscription will be charged to iTunes Account at confirmation of purchase.
• Subscription 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:

This app has not been approved by FDA for cure, mitigation, treatment, or prevention of disease. It is intended for maintaining and encouraging a healthy lifestyle.

What’s New

Version 1.14.1

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 (in addition to 40Hz Light)
- 40+ cognitive games
- A personalized Life Coach that includes:
- Guided meditations to help you relax
- Daily Planner with a personalized checklist
- Conversation starters to provide ideas for lively conversations

Ratings and Reviews

4.5 out of 5
155 Ratings

155 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

drjohnx ,

A must for everyone

I’m a old retired Pathologist with a PhD. There can be no question that this app and 40hz therapy is similar to doing physical therapy for the brain. As an experiment my wife and I are an N of 2 which means a very small data base, nevertheless we have noticed improvement in memory, mood, cognitive/decision making and sleep. We even noticed a decrease in cravings for sweets. We can feel the “brain burn”. The best is we play the games together at night sitting on the couch (2 devices). There is a lot of confusion about “is it 40 hz”? There is a phone app called STROBR that measures flashing light frequency. There are many ways to obtain 40hz light, sound and tactile stimulation but the games are fun and work the brain in sync. All devices should have 80hz requirements if only to hold back the avalanche of degenerative brain function in the aging population and I believe would relieve stress in younger people.

Tree top1 ,

ALZLIFE review

I’ve been using the ALZLIFE app for 6 years. And it’s the best thing I’ve ever spent money on. It’s been a game changer. It so very easy to use. So many different therapy options. Something for everyone. And it give you the feeling that your doing something positive for yourself.
I had my yearly visit with my neurologist. He was very pleased with my progress. In fact I answered his questions better that when I was first diagnosed. As good as ALZLIFE is, and it surely is. You have to do other things to help yourself, proper diet, read daily, go for a short walk, anything to keep your mind active. Highly recommend this app.
Tree top 1

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


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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