Antidote LDN PT vs Seize Light
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Antidote LDN PT
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With the Antidote LDN App, you will have access to workout programs designed specifically to help you reach your fitness and health goals! You can follow & track your workouts, your nutrition, your lifestyle habits, measurements and resultsβall with the help of your coach. FEATURES: - Access training plans and track workouts - Follow along to exercise and workout videos - Track your meals and make better food choices - Stay on top of your daily habits - Set health and fitness goals and track progress towards your goals - Gain milestone badges for achieving new personal bests and maintaining habit streaks - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect your Apple Watch to track workouts, steps, habits, and more right from your wrist - Connect to other wearable devices and apps like the Apple Health App, Garmin, Fitbit, MyFitnessPal, and Withings devices to track workouts, sleep, nutrition, and body stats and composition Download the app today!
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: Antidote LDN PT at none against Seize Light's shown. Antidote LDN PT also leads on device support (4 vs 1) and iOS requirement (15.5 vs 18.0). Seize Light's advantage is update cadence (every 2 weeks vs every 6 weeks). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Antidote LDN PT ships an update every 6 weeks, Seize Light every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | Antidote LDN PT | Seize Light |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 2 weeks β better |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod, Apple Watch β better | iPhone |
| Requires iOS | 15.5 β better | 18.0 |
| Further details β not scored | ||
| Size | 164 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Antidote LDN LTD | sebastian totte |
In-app purchases
Antidote LDN PT
No in-app purchases
Seize Light
No in-app purchases
Questions
Is Antidote LDN PT free?
Is Seize Light free?
Do Antidote LDN PT or Seize Light have ads?
Which is updated more often, Antidote LDN PT or Seize Light?
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