BMI Manager vs Sun Light
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BMI Manager
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BMI housekeeper is a software that records the user's height and weight and calculates BMI automatically. The software supports adding multiple user information, can set the user's height/weight goal, record the height and weight data of different periods, and support synchronous saving data to the health application. Main functions: 1. User management, you can add multiple different users, set different height/weight goals, user switching, etc. 2. Add and manage height/weight data, and calculate BMI automatically. 3. Chart display of height, weight and BMI data. 4. Display user information at a glance. 5. Switch height/weight units. 6. Support dark mode, password protection, data backup, theme color switch, etc.
Sun Light
Track your daily sunlight exposure with this simple app. It uses your Apple Watch data to fill a daily progress ring, track streaks, and show your history. Enjoy a straightforward approach to monitoring your time spent outdoors.
- Daily daylight progress ring
- Streak tracking
- 7-day history chart
- Morning, afternoon, and evening breakdown
- Custom daily goal
- Sunrise and sunset times
- Home and lock screen widgets
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Get outside. Sun Light does the rest. Sun Light turns your daily sunlight into a simple ring, a streak, and a clear picture of when you actually got your light — morning, afternoon, or evening. Most people get less daylight than they think. Sun Light makes it visible in one glance, from your home screen or your wrist. WHAT YOU GET • Daily daylight ring and streak • Morning light window — see your first daylight of the day against sunrise • Morning, afternoon and evening breakdown • 7-day history chart • Shareable daily card • Custom daily goal • Sunrise and sunset times • Home screen and lock screen widgets • Apple Watch app and complications HOW TRACKING WORKS With an Apple Watch, daylight is recorded automatically — nothing to start or stop. Apple Watch writes Time in Daylight to Apple Health and Sun Light reads it. Without an Apple Watch, use a Sun Session: tap start when you head outside, tap stop when you come back. Sun Light saves those minutes to Apple Health too. Automatic tracking requires Apple Watch Series 6 or later, Apple Watch SE (2nd generation), or Apple Watch Ultra, on watchOS 10 or later. PRIVATE BY DESIGN No account. No server. No analytics. No ads. Your daylight data stays in Apple Health on your devices. SUN LIGHT PRO Sun Light is free, and everything above stays free — including the shareable daily card. Pro adds your morning light window history and unlimited history beyond the last seven days. 7-day free trial, then $24.99/year — or $49.99 once for lifetime access. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Sun Light at every 8 days against BMI Manager's every 2 months. BMI Manager's advantage is iOS requirement (14.0 vs 17.0). On price, 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
Both are free to download. BMI Manager sells 1 one-off in-app purchase and Sun Light sells 3 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.
BMI Manager ships an update every 2 months, Sun Light every 8 days. The most recent releases landed on September 28, 2026 and October 8, 2026 respectively.
| Parameter | BMI Manager | Sun Light |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | 勇 牛 | JAMES JAY QUACKENBUSH |
In-app purchases
BMI Manager
- Remove Ads$1.99
Sun Light
- Sun Light Pro7 Days trial$24.991 Year
- Tip$4.99
- Sun Light Pro Lifetime$49.99
Questions
Is BMI Manager free?
Is Sun Light free?
Do BMI Manager or Sun Light have ads?
Which is updated more often, BMI Manager or Sun Light?
Other comparisons
