Comparison

Daylight Tracker vs VO2 Prime

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Daylight Tracker

Track and visualize your time spent outdoors with this iOS and watchOS application. It offers widgets, complications, and graphs for at-a-glance insights into your outdoor activities. Subscribe to daily summaries to stay motivated.

Highlights
  • Outdoor time tracking
  • Widgets and complications
  • Visually appealing graphs
  • Daily summary push notifications
  • User-friendly interface
Features
Read full description

Make daylight a daily habit. Set a personal daylight goal and see how much time you have spent outside today. A compatible Apple Watch records Time in Daylight in HealthKit, so your daily progress updates without starting a timer. YOUR DAY AT A GLANCE • See immediately whether you still need daylight today or have reached your goal. • Check daylight time, goal progress, and minutes remaining. • Keep your daily focus visible with iPhone widgets, Watch widgets, and watch-face complications. • Get one positive local alert on Apple Watch when you reach your goal. APPLE WATCH FIRST • Use the Watch app for Today, recent history, trends, and settings. • Keep tracking and receive the goal alert even when your iPhone is not nearby. • Synchronize your goal and preferences between iPhone and Apple Watch. LOCAL UV CONTEXT • Enable location deliberately when you want to see local UV information. • View the hourly UV index and daily maximum from Apple Weather. • Match HealthKit daylight intervals with hourly UV values using stored coarse location anchors. • Visible location and weather coverage show how complete that estimate is. • Optionally choose a skin-response preset for carefully worded guidance — never as a claimed safe exposure time. UNDERSTAND YOUR ROUTINE • Explore daylight duration and brightness in clear charts. • Compare days, weeks, and longer-term progress. • Choose a daily goal that fits your routine. • No account is required. Daylight reads Time in Daylight and ambient-light data from Apple Health. Data availability and update timing depend on your Apple Watch model, how it is worn, and HealthKit background delivery. Location access starts only when you activate the UV feature. On iPhone, the app then uses power-efficient significant location changes instead of continuous GPS. You can delete its location history from Settings after a warning and confirmation. The UV context estimate is not a measurement of your personal UV dose or skin exposure. Daylight duration, brightness, and UV index do not determine vitamin D or a safe amount of time in the sun. This app does not provide medical advice. Follow local sun-protection guidance. ACCESS OPTIONS New customers can explore the app for two days from their first download without an automatic charge. After that, a monthly or yearly subscription or a one-time Lifetime purchase is required. Choosing a plan starts a paid purchase immediately. Previous paid-app customers retain permanent access. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Payment is charged to your Apple Account on confirmation. Manage or cancel subscriptions in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://www.blogboxapp.de/datenschutz

About

VO2 Prime

Features
Read full description

This app transforms VO2 Max and Resting Metabolic Rate (RMR) test results into daily guidance for nutrition and recovery optimization. Users can track how their body burns fat vs carbs, monitor biological age, and receive tailored insights for training and lifestyle. It provides access to personalized meal plans, recipes, and workout builders — all powered by personal metabolic analysis and breath-based testing. Key Features: • Dashboard with activity, nutrition, recovery, and metabolic data. • Personalized nutrition planning with meal plans and smart recommendations. • Training builder aligned with VO2 Max and RMR test results. • Recovery tracking with biological age and fat vs carb burn metrics.

Screenshots

Daylight Tracker4 screens
VO2 Prime4 screens

Verdict

The call

The clearest difference is price: VO2 Prime at Free against Daylight Tracker's $1.99. VO2 Prime also leads on update cadence (monthly vs every 7 months) and iOS requirement (15.1 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

VO2 Prime is free to download; Daylight Tracker costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Daylight Tracker ships an update every 7 months, VO2 Prime monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Daylight Tracker versus VO2 Prime: the parameters behind the verdict, then further details
ParameterDaylight TrackerVO2 Prime
Price$1.99Free — better
Rating3.2 (5 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings5 — better—
Update frequencyEvery 7 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, Apple WatchiPhone, iPod, Apple Watch
Requires iOS17.015.1 — better
Further details — not scored
Size15 MB62 MB
Age rating4+17+
DeveloperBernhard HeringEndoMedical Inc

In-app purchases

None

Daylight Tracker

No in-app purchases

None

VO2 Prime

No in-app purchases

Questions

Is Daylight Tracker free?
Daylight Tracker costs $1.99, with no in-app purchases.
Is VO2 Prime free?
VO2 Prime is free to download, with no in-app purchases.
Do Daylight Tracker or VO2 Prime have ads?
Neither Daylight Tracker nor VO2 Prime shows ads.
Which is updated more often, Daylight Tracker or VO2 Prime?
Daylight Tracker ships an update every 7 months, and VO2 Prime monthly. Most recently, Daylight Tracker was updated on November 3, 2026 and VO2 Prime on October 30, 2026.

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