Sleep Wise vs Seize Light
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sleep Wise
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Discover an effective way to help a young person with sleep problems! Aimed at parents or adults caring for or supporting children and young people of school age. Including those with special educational needs and disabilities. The app allows you to see if a young personβs current quality of sleep is the best it can be and gives you helpful activities to improve this. It includes a learning area where you can increase your knowledge on how to help a child who can not sleep. For parents and professionals. Jointly developed by Hunrosa Sleep Consultancy and NASS (National Association of Independent Schools and Non-Maintained Special Schools). Hunrosa provided evidence based information about children's sleep and NASS used its knowledge of the education sector. Using it combines the organisationsβ knowledge of up-to-date sleep science and practice within schools including special educational needs. If you are wondering how to help a young person who cannot sleep, you will love this app. Sleep is crucial for learning, emotional regulation, good mental and physical health. Without sleep we are not at our best. This is so important for young people as they develop and grow. Why Sleep Wise? Sleep Wise uses content tried and tested in a clinical setting and with real families. If you are health or education professional the knowledge base will equip you to tackle other sleep problems in young people going forward. Sleep Wise works - the content in the app is used on a daily basis to treat young people. Hunrosa submits regular evaluations to the NHS evidencing the effectiveness of their sleep programmes. Mark your priorities. Everyone has their own goal, decide upon a method to improve sleep and set a reminder to review your progress. Invite others. Family members can be part of the plan to help a young person to sleep. Also, as requested by healthcare and education professionals, include colleagues so that a team of people can support a child to improve their sleep. Be safe. Our app does not gather data about your child. No health data is stored. What people say already about Sleep Wise: - Love the app. The modules were informative. Easy to use. Simple & user friendly. Great for parents with smaller kids, teens and adults to solve sleeping problems. - Love this!!!.... It's really clean and simple and very easy to use. Read through the 'modules', the language is very user friendly and simple, yet very effective. Lovely app overall and easy to use for teens and adults. Useful diaries too! - Awesome app! So easy to follow steps, questions easy to follow and info very clear and helpful! Could have done with this 20 years ago! The app now has subscription. Please see the following policies: Terms and conditions - https://app.termly.io/document/terms-of-use-for-ios-app/235e64bf-fbbc-44ab-8fb5-e7df2e41ecf7 Privacy policy - https://hunrosa.co.uk/sleep-wise-privacy-policy/
Seize Light
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Get the right light at the right time. Seize Light reads where you are and the sky above you, computes the sun's real position on your device, and shows your daily light windows β when to get outside, and when to wind down. Most sun apps just show today's UV number. Seize Light shows your two windows: a morning-light window to help set your body clock, and the vitamin-D window β the part of the day the sun is high enough to make vitamin D β plus an evening wind-down that tells you when to dim the lights. Your Apple Watch's Time in Daylight turns it into a passive daily habit, with a transparent Light Score and a streak. YOUR THREE WINDOWS β’ Morning light β get outside soon after waking to help set your clock; today's target minutes adjust for cloud cover. β’ Vitamin-D window β opens when the sun is high and UV is strong enough, and closes when it isn't (it tells you why). Keep it short and sub-erythemal. β’ Evening wind-down β when to dim the lights as part of a wind-down routine. THE LIGHT SCORE A simple, transparent 0β100 score from three parts β morning light, daylight total, and evening protection β fed by your Apple Watch's Time in Daylight. Missing data is never held against you. Build a daylight streak and watch your 90-day trend. EVERY NUMBER IS CITED The solar math, the UV model, and the vitamin-D estimate all trace to published science in an in-app "How this works" screen. HONEST BY DESIGN β’ UV comes from weather-forecast data (Apple Weather), not a sensor. β’ Vitamin-D output is an estimate from a model, not a blood test. β’ Sun safety first: protection is advised at UV 3+, and the rule is always β don't burn. β’ General wellness and educational use only β not medical advice. Consult a healthcare professional before making health decisions. PRIVATE BY DESIGN β’ No account. No sign-up. β’ The solar and vitamin-D math run on your device; only coarse coordinates are sent, for the weather lookup. β’ Health data is read-only and never leaves your device, except to sync through your own private iCloud β and it is never used for advertising. Weather data provided by Apple Weather. Carpe lucem. Seize the light.
Screenshots
Verdict
The clearest difference is ads: Sleep Wise at none against Seize Light's shown. Sleep Wise also leads on iOS requirement (15.0 vs 18.0). Seize Light's advantage is update cadence (every 2 weeks vs every 5 months). On price, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Sleep Wise sells 1 in-app purchase, starting at $9.99 per month and Seize Light sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Sleep Wise ships an update every 5 months, Seize Light every 2 weeks. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.
| Parameter | Sleep Wise | Seize Light |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 2 weeks β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod β better | iPhone |
| Requires iOS | 15.0 β better | 18.0 |
| Further details β not scored | ||
| Size | 43 MB | 39 MB |
| Age rating | 12+ | 4+ |
| Developer | Hunrosa Ltd | sebastian totte |
In-app purchases
Sleep Wise
- Monthly7 Days trial$9.991 Month
Seize Light
- Remove Ads$4.99
Questions
Is Sleep Wise free?
Is Seize Light free?
Do Sleep Wise or Seize Light have ads?
Which is updated more often, Sleep Wise or Seize Light?
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