Light Meter: Lux & Brightness

Plant, desk & bedroom check

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

Is this spot bright enough? Point your camera to read the lux and get a one-second verdict for houseplants, reading, your desk, bedroom or photos. Point your camera at a spot and instantly find out if it is bright enough. Light Meter reads the light level (lux) and gives you a one-second verdict — enough / a bit dim / too little — so you get the answer even if the lux number means nothing to you. ■ Great for - Finding the right spot so your houseplants get enough light - Checking that your desk or study area is not too dim - Seeing if a bedroom is dark enough for a good night's sleep - Judging whether there is enough light to shoot a photo ■ Features - Camera reading with a big judgment icon and a one-line verdict - 5 use-case presets: plants / reading & study / bedroom / desk work / photo - The bedroom preset is reversed — darker is better, and it warns when too bright - Open, aim, get the answer. One screen, one purpose, no manual - Fully on-device. No AI, no server upload, images are never saved or sent ■ Free / Remove ads (one-time purchase) All presets and verdicts are free to use, with a small banner ad. A one-time "Remove ads" purchase hides every ad. It is not a subscription. Note: readings are camera-based estimates meant as a rough guide and do not match a calibrated lux meter. This app does not guarantee any medical, health or plant-growth effect, and is not a substitute for occupational, school or other regulated illuminance measurement (which requires a JIS C 1609 / standards-compliant meter).

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What's New - Full-screen ads no longer pop up right after you come back from Settings, permissions or email - The welcome guide is now a single page, so you can start measuring right away - Rate the app or contact us directly from Settings Thanks for using Light Meter! Feel free to reach out anytime via "Contact" in Settings.

Version 1.0.3

The developer, hiroki kawamura, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Identifiers

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Usage Data
    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Size
37.1 MB
Category
Utilities
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and Japanese
Age Rating
4+
In-App Purchases
Yes
Provider
hiroki kawamura
  • hiroki kawamura has not identified itself as a trader for this app. If you are a consumer in the European Economic Area, consumer rights do not apply to agreements between you and the provider.
Copyright
© 2026 hecuhecu
  • Privacy Policy

    • More by hiroki kawamura

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