Age Rating
4+
Apps in this category do not contain restricted content.
9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
12+
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
LYS Light Diet Screenshots
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About LYS Light Diet

Stop measuring how you sleep. Start measuring the main influencing factor affecting your sleep.

**Are you feeling sleepy or energised right now?**

Using your phone camera, the LYS App beautifully illustrates how the light around you is affecting your wellbeing in real-time. Improve sleep in a matter of days and boost concentration, energy levels and productivity.

**To access more advanced features that will help you reach better sleep, pair the LYS App with the LYS Button.**

With the wearable device paired, use the NOW function for a more accurate reading of the precise light stimulation your body is receiving in real-time from your surroundings.

Guided by our friendly research-based nudges and notifications, you can set your personal light goals and track your progress with three daily light targets.

Paired with the LYS Button you can access the DAY feature, which gives you an overview of your 24-hour cycle, your wake up time and set bedtime.

Download the app and start improving your sleep in no time.
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What's New in the Latest Version 1.5.10

Last updated on Jul 14, 2020
Old Versions
Thanks for using LYS Light Diet!
With this version we bring important fixes and updates to the app. If you have any feedback or comments, please let us know at team@lystechnologies.io
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Version History
1.5.10
Jul 14, 2020
Thanks for using LYS Light Diet!
With this version we bring important fixes and updates to the app. If you have any feedback or comments, please let us know at team@lystechnologies.io
1.5.8
Apr 15, 2020
Thanks for using the LYS Technologies app. We've been busy making some updates and improvements.

What's new?

• The Light Diet® is now available for all users, our new wellbeing programme for a healthy sleep-wake cycle. The 2-week programme tracks your light exposure and gives a detailed report with advice on how to improve your sleep and energy levels.
• New and simplified onboarding process for new users and Light Diet
• Bug fixes and overall improvements
• Improved and simplified connection with the LYS Button, your wearable light sensor.

Love using LYS? Don't forget to rate us. Your feedback helps us make the app even better.
1.5.7
Feb 25, 2020
Thanks for using the LYS Technologies app. We've been busy making some updates and improvements.

What's new?

• The Light Diet® is now available for all users, our new wellbeing programme for a healthy sleep-wake cycle. The 2-week programme tracks your light exposure and gives a detailed report with advice on how to improve your sleep and energy levels.
• New and simplified onboarding process for new users and Light Diet
• Bug fixes and overall improvements
• Improved and simplified connection with the LYS Button, your wearable light sensor.

Love using LYS? Don't forget to rate us. Your feedback helps us make the app even better.
1.5.6
Feb 8, 2020
Thanks for using the LYS Technologies app. We've been busy making some updates and improvements.

What's new?

• The Light Diet® is now available for all users, our new wellbeing programme for a healthy sleep-wake cycle. The 2-week programme tracks your light exposure and gives a detailed report with advice on how to improve your sleep and energy levels.
• New and simplified onboarding process for new users and Light Diet
• Bug fixes and overall improvements
• Improved and simplified connection with the LYS Button, your wearable light sensor.

Love using LYS? Don't forget to rate us. Your feedback helps us make the app even better.
1.5.5
Feb 8, 2020
Thanks for using the LYS Technologies app. We've been busy making some updates and improvements.

What's new?

• The Light Diet® is now available for all users, our new wellbeing programme for a healthy sleep-wake cycle. The 2-week programme tracks your light exposure and gives a detailed report with advice on how to improve your sleep and energy levels.
• New and simplified onboarding process for new users and Light Diet
• Bug fixes and overall improvements
• Improved and simplified connection with the LYS Button, your wearable light sensor.

Love using LYS? Don't forget to rate us. Your feedback helps us make the app even better.
1.5.4
Feb 6, 2020
Thanks for using the LYS Technologies app. We've been busy making some updates and improvements.

What's new?

• The Light Diet® is now available for all users, our new wellbeing programme for a healthy sleep-wake cycle. The 2-week programme tracks your light exposure and gives a detailed report with advice on how to improve your sleep and energy levels.
• New and simplified onboarding process for new users and Light Diet
• Bug fixes and overall improvements
• Improved and simplified connection with the LYS Button, your wearable light sensor.

Love using LYS? Don't forget to rate us. Your feedback helps us make the app even better.
1.5.3
Jan 17, 2020
Thanks for using the LYS Technologies app. We've been busy making some updates and improvements.

What's new?

• The Light Diet® is now available for all users, our new wellbeing programme for a healthy sleep-wake cycle. The 2-week programme tracks your light exposure and gives a detailed report with advice on how to improve your sleep and energy levels.
• New and simplified onboarding process for new users and Light Diet
• Bug fixes and overall improvements
• Improved and simplified connection with the LYS Button, your wearable light sensor.

Love using LYS? Don't forget to rate us. Your feedback helps us make the app even better.
1.5.2
Jan 16, 2020
Thanks for using the LYS Technologies app. We've been busy making some updates and improvements.

What's new?

• The Light Diet® is now available for all users, our new wellbeing programme for a healthy sleep-wake cycle. The 2-week programme tracks your light exposure and gives a detailed report with advice on how to improve your sleep and energy levels.
• New and simplified onboarding process
• Bug fixes and general improvements
• Improved and simplified connection with the LYS Button, your wearable light sensor.

Love using LYS? Don't forget to rate us. Your feedback helps us make the app even better.
1.5.1
Oct 30, 2019
Winter is here for those of us living in the Northern hemisphere, so we made some exciting new app updates that will help guide you through the short days and keep your sleep and energy levels at their very best. Here's what is new:

• Bugs have been fixed
• The response time has been optimised, making the app much more responsive in real-time
• Personalised tips and nudges for your age, gender, and chronotype (morning/evening person)

What else is included?

• Glossary function filled with insights on the terms we use, from circadian rhythms to Lux and Kelvin. We also produce insightful content on light, which can be accessed directly through the app’s Reflection function.
• NOW camera-only mode. Point your phone camera and let LYS tell you if the light in your surrounding is making you sleepy or energised
• DAY function shows you personalised wake-up and bedtime marks on the LYS 24 h clock, allowing you to dictate your day and night cycle according to your schedule
• A beautifully designed 24-hour cycle that visualises your light intake in an accessible and delightful way
• Customise your daily goals in the MY GOALS settings with our research-based recommendation guidance
• Reach your Morning Light goal to kickstart the day
• Day Light goal keeps you energised for longer throughout the day and helps you avoid the afternoon dip
• Reach 100% of your Night Light goal in preparation for a sound sleep every night.
1.5.0
Mar 14, 2019
This new app version is packed full of exciting features:

• Personalised tips and nudges for your age, gender and chronotype (morning/evening person)
• NOW camera-only mode. Point your phone camera and let LYS tell you if the light in your surrounding is making you sleepy or energised
• DAY function shows you personalised wake-up and bedtime marks on the LYS 24 h clock, allowing you to dictate your day and night cycle
• A beautifully designed 24-hour cycle that visualises your light intake in an accessible and delightful way
• Customise your daily goals in the MY GOALS settings with our researched recommendation guidance
• Reach your Morning Light goal to kickstart the day
• Day Light goal keeps you energised for longer throughout the day and helps you avoid the afternoon dip
• Reach 100% of your Night Light goal in preparation for a sound sleep every night.

What else is included?

There is a Glossary function filled with insights on the terms we use, from circadian rhythms to Lux and Kelvin. We also produce insightful content on light, which can be accessed directly through the app’s Reflection function.

LYS Light Diet FAQ

Click here to learn how to download LYS Light Diet in restricted country or region.
Check the following list to see the minimum requirements of LYS Light Diet.
iPhone
LYS Light Diet supports English

LYS Light Diet Alternative

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