# JoyLights — Ambient light & eye-care

> Ambient light & eye-care (iPhone/iPad app by 伟 郑.)

- Source: https://appshunter.io/ios/app/joylights/id6799812278 (this page in markdown: same URL + `.md`)
- Developer: [伟 郑](https://appshunter.io/developer/6784279206)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 3 MB
- Languages: American English
- Released: 2026-08-25
- Data updated: 2026-11-06

## What is JoyLights?

Studying, working, late-night screens—the wrong light tires your eyes first.

EasyLight uses your iPhone camera to estimate ambient illuminance (lux) and color temperature (kelvin), then shows clear guidance on whether your space suits near work. It can also nudge you when it’s too dark or you’ve been focusing up close for too long.

WHY DOWNLOAD
• Instant check: aim at a wall or desk, hold steady for a few seconds
• Two-axis guidance: brightness + color temperature together
• Eye-care prompts for very dark rooms, dim light, and long near-work sessions
• Free to try: daily sessions before you decide on Pro
• Pro: flicker observation and everyday reference estimates

WHO IT’S FOR
Students, desk workers, night owls, anyone who wants healthier lighting habits at home or in the office.

HOW TO USE
1. Allow Camera access
2. Start monitoring; point at a wall or desk (diffuse surfaces work best)
3. Read lux / kelvin and the guidance color
4. Upgrade to Pro when you want flicker tools

IMPORTANT
Readings are on-device estimates for personal, everyday reference only. EasyLight is not a medical device, not a clinical diagnostic tool, and not a metrology-certified instrument. Do not use results for medical decisions, workplace compliance, engineering acceptance, or safety certification. See in-app Measurement & Disclaimer for details.

SUBSCRIPTIONS & PURCHASES
• Monthly: $2.99/month
• Yearly Pro: $14.99/year (includes a 3-day free trial; auto-renews after the trial)
• Lifetime: $29.99 (one-time; no renewal)

Payment will be charged to your Apple ID at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Renewal is charged within 24 hours prior to the end of the current period. Manage or cancel anytime in Settings → Apple ID → Subscriptions. Any unused portion of a free trial is forfeited when you purchase a subscription. Prices shown in the App Store at purchase time prevail.

Privacy：https://legal.macrosss.com/joylights/privacy/
Terms：https://legal.macrosss.com/joylights/terms/
Support：https://legal.macrosss.com/joylights/support/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Pro | $14.99 | per year |
| Monthly | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro | $29.99 | one-time |


## Is JoyLights safe?

Not enough ratings yet to assess JoyLights.

## Is JoyLights legit?

JoyLights has limited verification signals. The AppsHunter Legitimacy Score for JoyLights is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-08-25

No release notes.

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## More apps by 伟 郑

- [SuperDaddyGlobal](https://appshunter.io/ios/app/superdaddyglobal/id6789398044)

All apps by 伟 郑: https://appshunter.io/developer/6784279206

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*