# Luxmo

> Light meter for photographers

- Product page: https://obelisk.club/luxmo
- Platforms: iPhone
- Release status: live
- Last updated: 2026-06-29T15:31:37Z
- Pricing: free to download; the App Store listing shows any in-app purchase or subscription
- Download (iPhone): https://apps.apple.com/app/id6781931070
- Publisher: Obelisk Club (https://obelisk.club) — local-first, privacy-respecting apps built in native Swift

## About

Luxmo turns your iPhone into a fast, precise reflected-light meter. Point it at your scene and read a correct exposure straight off one calm screen — aperture, shutter and ISO, with no menus to dig through.

Built for film and analog shooters who want a dependable meter in their pocket. Luxmo runs entirely on your device: no account, no ads, no tracking, and nothing you measure ever leaves your iPhone.

— WHAT MAKES LUXMO DIFFERENT —
• Real photographic units
  Aperture, shutter speed and ISO for the shot, plus EV, lux and foot-candle readouts for the same scene.
• Values that snap like a real meter
  Choose full, ½ or ⅓ stop increments and every number lands on a standard mark instead of an arbitrary decimal.
• You set one value, Luxmo solves the rest
  Tell it what is already dialled in on your camera, pick your film speed, and it works out the remaining settings live.
• One screen, no menus
  The live meter, the mode pills and the steppers all sit on a single view — nothing is buried two taps deep.
• Hold a reading
  Freeze the current measurement so you can step out of the light and still read the numbers.
• Fully offline
  No account, no network calls, no analytics. Camera frames are metered on-device and never stored.

— WHO IS LUXMO FOR? —
• Film photographers whose camera has no built-in meter, or one that no longer works
• Large-format and medium-format shooters who meter before every frame
• Anyone learning the exposure triangle who wants to watch the three values move together
• Photographers who would rather not carry a second piece of hardware

— PRICING —
Included: live reflected metering, aperture priority, EV, lux and foot-candle readouts, full / ½ / ⅓ stop increments, and hold-a-reading.
Luxmo Pro is a one-time in-app purchase — not a subscription — and adds spot metering (tap to meter one part of the scene), shutter and ISO priority modes, exposure compensation, and a saved readings log with notes and CSV export.

— FEEDBACK —
Made by a small indie team. Email obeliskclubclub@gmail.com with feedback, bug reports, or feature requests.

Luxmo is a reflected-light meter and is not affiliated with any camera or film manufacturer.

Terms of Use (EULA): https://obelisk.club/lightmeter/terms

## Key features

- **Live reflected-light metering straight from the camera**
- **Solves aperture, shutter and ISO for a correct exposure**
- **Readouts in EV, lux and foot-candles**
- **Full, ½ and ⅓ stop increments, like a real meter**
- **Fully offline — no accounts, no ads, no tracking**
- **Pro: spot metering, all priority modes, exposure compensation, saved log with CSV export**