---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "Sunlight: UV Index Tracker"
developer_entity: "子涵 王"
bundle_id: "BiBoBiBo.UVPredict"
app_store_id: "6802063065"
category: "Health & Fitness"
primary_platform: "ios"
primary_monetization: "Freemium"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2026-09-24"
report_date: "2026-10-26"
last_verified: "2026-10-26T00:00:00.000Z"
report_version: "1.0.2"
total_reviews: 0
confidence: "low"
confidence_score: 0.05
data_age_days: 20
momentum_velocity: "maintenance"
intelligence_version: 2
tags: ["health & fitness", "freemium", "mobile app", "app review", "app analysis", "health-conscious", "individuals", "outdoor"]
canonical_url: "https://marlvel.ai/apps/sunlight-uv-index-tracker"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

## ⚠ Content Warning

This report covers topics classified as sensitive (health). Information is aggregated from public sources for informational purposes only. This is not medical advice. Consult a qualified professional before acting on any information here.

---

# Sunlight: UV Index Tracker Intelligence Report

## TL;DR {#tldr}

- **Category**: Health & Fitness · Freemium

> **TL;DR:** Sunlight: UV Index Tracker is a health & fitness app by 子涵 王, available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** Sunlight: UV Index Tracker is a health & fitness app by 子涵 王.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Category** | Health & Fitness |
| **Developer** | 子涵 王 |
| **Pricing** | Freemium |
| **Platforms** | iOS |
| **Confidence** | Low (0.05/1.0) |
| **Data Age** | 20d |

## Metadata & Market Performance
- **Publisher:** 子涵 王
- **Category:** Health & Fitness
- **Target Audience:** Health-conscious individuals and outdoor enthusiasts who track daylight exposure.
- **Platforms:** iOS
- **Version Reviewed:** 1.0.2
- **Report Date:** 2026-10-26
- **Signal Count:** 0 reviews analyzed
- **Confidence:** Low (0.05/1.0)
- **App Store ID (iOS):** 6802063065
- **Bundle ID:** BiBoBiBo.UVPredict
- **Data Window:** Analysis based on signals collected up to 2026-10-26

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** Sunlight: UV Index Tracker is a health-planning tool for iOS that maps local UV forecasts against personal outdoor habits.
**Why users hire it:** The app removes the cognitive friction of manual sun-safety planning by automating the link between real-time UV data and personal health records.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Standard] UV Forecast Integration:** Displays hourly UV index and local conditions sourced from Apple Weather.
- **[Differentiator] Apple Health Integration:** Reads Time in Daylight data to track outdoor habits.
  * *User Intent:* Users want visibility into their own performance and progress.
- **[Differentiator] Pro Planning and Trends:** Unlocks advanced outdoor planning and historical trend analysis.
  * *User Intent:* Users seek enhanced value through premium features.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

Sunlight: UV Index Tracker occupies the niche wellness-planning segment within the Health & Fitness category. Its reliance on Apple Weather data creates a dependency that necessitates a strong Pro-tier value proposition to justify the paid model.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Freemium
- **Tiers:** Free tier with basic UV tracking, Pro tier via monthly or one-time lifetime purchase
- **Analysis:** The freemium model gates advanced planning and trends behind a Pro tier, offering both recurring and one-time payment options.

<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- Apple Health integration anchors user data within the platform

**Growth Levers:**
- Localized UV guidance targets high-UV regions lacking granular tools


<!-- /section:swot -->
<!-- section:whats-new -->
## What's New

- **Latest (v1.0.2, 1 months ago):** Improved Sunlight widget reliability for daily forecast refreshes and added time-aware UV information.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Maintenance) {#momentum}

- Released initial version in September 2026.
- Ships minor updates for widget reliability.

> **Cadence:** 1 total versions · 0 majors in last 6 months · 32 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

Sunlight: UV Index Tracker is a health & fitness app that is free with in-app purchases.

<!-- speakable-start -->
> **Bottom Line:** Sunlight: UV Index Tracker leverages Apple Health integration to differentiate from native weather apps, but it must prove the value of its Pro trends to sustain growth. The PM should focus on re-engagement triggers to justify the premium tier.
<!-- speakable-end -->

**Best for:** Health-conscious individuals and outdoor enthusiasts who track daylight exposure.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [INVEST] Ship push notifications for peak UV hours because current manual checks limit habit consistency → increase daily active usage.
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Stable

The UV tracking market is consolidating around native weather integrations, forcing third-party apps to provide deeper planning utility to survive. Sunlight: UV Index Tracker must pivot toward personalized health insights to avoid being rendered redundant by Apple's own feature updates.

- ⚪ The app maintains a steady release cadence focused on widget reliability, indicating a maintenance-first approach to development.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Total Reviews | 0 |
| Confidence | Low |
| Pricing Model | Freemium |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Outlook | Stable |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **Sunlight: UV Index Tracker** (this app) | N/A/5 | N/A | 子涵 王 |
| [Mind - Méditations guidées](https://marlvel.ai/apps/mind-m-ditations-guid-es) | 4.6/5 | Excited | MIND AND CIE |
| [Caspar Health](https://marlvel.ai/apps/caspar-health) | 3.6/5 | Mixed | GOREHA GmbH |
| [evolum - Meditation & Yoga](https://marlvel.ai/apps/evolum-meditation-yoga) | 4.7/5 | Excited | Rodger Studio (Apps) |
| [FAMHLTH: Family Health Tracker](https://marlvel.ai/apps/famhlth-family-health-tracker) | N/A/5 | N/A | Quinton Nixon |
| [Gluten Checker](https://marlvel.ai/apps/gluten-checker) | N/A/5 | N/A | JIRI CHOMAT |

## Company Profile
- **Developer:** 子涵 王

## Data Sources & Links
- **App Store ID:** 6802063065
- **Sources:** App store metadata.

## Related Intel Reports
- [*Mind - Méditations guidées*](https://marlvel.ai/apps/mind-m-ditations-guid-es) (MIND AND CIE) · 4.6/5 Rating | Positive Sentiment
- [*Caspar Health*](https://marlvel.ai/apps/caspar-health) (GOREHA GmbH) · 3.6/5 Rating
- [*evolum - Meditation & Yoga*](https://marlvel.ai/apps/evolum-meditation-yoga) (Rodger Studio (Apps)) · 4.7/5 Rating | Positive Sentiment
- [*FAMHLTH: Family Health Tracker*](https://marlvel.ai/apps/famhlth-family-health-tracker) (Quinton Nixon) · N/A Rating
- [*Gluten Checker*](https://marlvel.ai/apps/gluten-checker) (JIRI CHOMAT) · N/A Rating
- [*Gluten Free For Me*](https://marlvel.ai/apps/gluten-free-for-me) (Adam First) · 4.8/5 Rating
- [*GoTall - Height Predictor*](https://marlvel.ai/apps/gotall-height-predictor) (Grow Labs LLC) · 4.6/5 Rating
- [*Lunara: Cycle, Symptom Tracker*](https://marlvel.ai/apps/lunara-cycle-symptom-tracker) (Fuzhou Jiku Technology Co., Ltd.) · N/A Rating
- [*Medical Kundali Match Health*](https://marlvel.ai/apps/medical-kundali-match-health) (Medical Match Pvt Ltd) · N/A Rating
- [*Ovulation Predictor*](https://marlvel.ai/apps/ovulation-predictor) (RAHI PATEL) · 1.0/5 Rating

## Methodology {#methodology}

This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline:

1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps.
2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks.
3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes).
4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category.
5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights.

- **Confidence Score:** 0.05/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 0
- **Data Sources:** App Store metadata
- **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform
- **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence.
- **Report Age:** 20 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/sunlight-uv-index-tracker)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.