Light Meter LuMe vs Lightprint
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Light Meter LuMe
This app acts as a professional light meter and exposure calculator for film photographers. It offers various metering modes, reciprocity correction for different film stocks, and depth of field calculations. It aims to replace multiple handheld tools with a single, convenient app.
- Multiple metering modes (Matrix, Center-weighted, Spot, Zone System)
- Multi-point spot metering with contrast evaluation
- Reciprocity correction for various film stocks
- Depth of field and hyperfocal distance calculator
- Flash guide number calculator
- Live exposure tools including histogram and clipping warnings
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LuMe is a pro-grade light meter and exposure calculator built for film photographers. Whether you're shooting medium format on a Mamiya, large format on a 4×5, or 35mm on a Leica, LuMe gives you the exposure intelligence your film camera doesn't have. METERING MODES FOR EVERY SITUATION • Matrix — averages the whole scene for balanced exposures • Center-weighted — emphasizes the middle, like a classic SLR meter • Spot — measures a small area you tap, just like a 1° spot meter • Zone System — Ansel Adams' tonal mapping (Zones I–IX) right in your viewfinder MULTI-POINT SPOT METERING Place up to four spot markers anywhere on your scene. Read each EV at a glance, evaluate contrast range, and place tones with intention. LIDAR SPOT DISTANCE (on Pro devices) See the physical distance to any metered spot — useful for hyperfocal setup and verifying focus on rangefinders and manual-focus lenses. RECIPROCITY CORRECTION FOR EVERY FILM STOCK Long exposures don't behave linearly on film. LuMe applies the Schwarzschild exponent for your stock — Tri-X, TMax, Portra, Ektar, Velvia, and more — so you don't need printed tables in your bag. DEPTH OF FIELD CALCULATOR Hyperfocal distance, near limit, far limit — for 35mm, APS-C, medium format (6×4.5, 6×6, 6×7), and large format (4×5). One tap. FLASH GUIDE NUMBER CALCULATOR GN, distance, power fraction → f-stop. Solved. LIVE EXPOSURE TOOLS • Histogram overlay • Highlight/shadow clipping warnings • ND filter compensation • Aperture priority & shutter priority • Exposure compensation dial • ISO and shutter range constraints (cap at your film speed) BUILT FOR THE WAY FILM PHOTOGRAPHERS ACTUALLY SHOOT • Spot meter a high-contrast scene; place highlights on Zone VII • Apply reciprocity for a 30-second exposure on Tri-X • Calculate hyperfocal for landscape work on Portra 400 • Verify a flash setup before burning a frame LuMe replaces your handheld meter, reciprocity card, DoF chart, and flash calculator with one tool that fits in your camera bag. Available in 16 languages: English, German, French, Spanish, Italian, Portuguese, Dutch, Swedish, Polish, Turkish, Russian, Arabic, Japanese, Korean, Chinese (Simplified & Traditional). LUME PRO • $6.99 USD for lifetime access Privacy policy: https://lume.contraststudio.app/privacy.html Terms of Use: https://lume.contraststudio.app/terms.html
Lightprint
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Lightprint helps photographers and video creators save lighting setups they need to repeat before shooting with a mirrorless, film, cinema camera, or manual camera app. Use the live camera meter to estimate EV, exposure settings, Kelvin, tint, and estimated lux. Lock ISO, aperture, or shutter, then let Lightprint calculate the missing value. For video, store FPS and shutter angle in project presets and see an estimated ND stop guide. Save each setup as a Light Recipe with location, camera, lens, film stock or picture profile, notes, thumbnail, measured values, and recommended target settings. Use Match Score to compare a saved recipe against the live camera reading when you return to the same room, desk, cafe, studio, or product setup. Lightprint includes reflected and diffuser-assisted reading modes, correction EV calibration, device-specific default correction, project presets, CSV export, and 4:5 or 9:16 recipe exports. Free users can measure light, estimate exposure and white balance, and save up to 5 light recipes. Lightprint Pro is a one-time lifetime unlock for unlimited recipes, Match Score, 4:5 and 9:16 PNG recipe exports, project presets, video notes, correction profiles, and CSV export. Lightprint is built for repeatable lighting recipes, not legal lux certification, professional color science, CRI, TLCI, SSI, or flash metering. Terms of Use: https://prizmchain.github.io/lightprint-terms-of-service.html Privacy Policy: https://prizmchain.github.io/lightprint-privacy-policy.html
Screenshots
Verdict
The clearest difference is update cadence: Light Meter LuMe at every 5 days against Lightprint's every 2 months. 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. Light Meter LuMe sells 1 one-off in-app purchase and Lightprint sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Light Meter LuMe ships an update every 5 days, Lightprint every 2 months. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.
| Parameter | Light Meter LuMe | Lightprint |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (19 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 5 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 16 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Contrast Studio | NOH HIYEONG |
In-app purchases
Light Meter LuMe
- LuMe Pro Lifetime2 variants$6.99
Lightprint
- Lightprint Pro$9.99









