# Light Meter by WBPhoto — Pro Light Meter > Professional light meter and photography calculator for film and digital cameras. (iPhone/iPad app by William Blaschko.) - Source: https://appshunter.io/ios/app/light-meter-by-wbphoto/id1524189195 (this page in markdown: same URL + `.md`) - Developer: [William Blaschko](https://appshunter.io/developer/1499401635) - Category: Photo & Video, Travel - Price: $6.99 - Rating: 4.40/5 from 41 App Store ratings · 11 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 32 MB - Languages: American English - Released: 2020-07-20 - Data updated: 2026-08-20 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/light-meter-by-wbphoto/id1524189195/reviews.md ## What is Light Meter by WBPhoto? The essential light meter app for film and digital photography. Turn your phone into a precision spot meter trusted by 400,000+ photographers worldwide. PRECISION EXPOSURE METERING • Spot meter with tap-to-focus exposure points • Multi-point spot metering — pin and compare dynamic range • Zone System metering — assign zones (0–X) to readings • Exposure preview for compensation and ND offsets • Volume button to start/stop metering • Calibrated against professional Gossen and Sekonic meters ZONE PLACEMENT CALCULATOR • Place readings on zones, see target exposure instantly • Grayscale swatches show how each reading renders • Dynamic range warnings for high-contrast scenes • Send directly to Bracket Calculator AR RANGEFINDER • Point at your subject, read distance in feet or meters • Perfect for manual focus film cameras with no built-in rangefinder • LiDAR precision on iPhone Pro (centimetre accuracy up to 5 m) • ARKit scene tracking on all other supported iPhones • Precise mode for the exact number; Zone mode for macro/near/mid/far • Send readings directly into the Depth of Field Calculator YOUR COMPLETE PHOTOGRAPHY TOOLKIT — 13 CALCULATORS • Rangefinder — AR subject-distance measurement • DOF — Hyperfocal distance, near/far focus limits • Reciprocity — 40+ film stocks (Portra, Tri-X, HP5, CineStill, and more) • Bracket Calculator — Exposure bracketing with custom steps • Pinhole Calculator — Effective f-stop for pinhole cameras • EV/LV Converter • White Balance • Bellows Factor • Flash Guide Number • EXIF Reader • Angle of View • Zone Placement • Sunny 16 GOLDEN HOUR & BLUE HOUR • Sunrise, sunset, golden hour, and blue hour times PROFESSIONAL FEATURES • Custom ISO, shutter, f-stop ranges • Half-stop and third-stop increments • Shutter angle mode for cinematographers • Live histogram • ND filter display • Foot-candles and Lux • Exposure timer SAVE & ORGANIZE • Log exposures with GPS and notes • Hardware profiles for your gear • Export and reference past readings Film SLR • Medium format • Large format • Pinhole • Digital mirrorless 50+ languages • Home screen and lock screen widgets • No internet required ## Key features - Precision spot metering - Depth of Field calculator - Reciprocity calculator for film - White Balance meter - Magic Hour calculator - Exposure logging with GPS - Manual camera support ## Chart rankings - #71 in Top Paid · Photo & Video (US App Store) ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/light-meter-by-wbphoto/id1524189195/reviews.md ### 5/5 — Essential tool *2026-08-11* This app deserves praise for its versatility. After continuous updates it’s like a Swiss Army knife! It can measure light accurately, covert exposures, calculate dof, flash guide number, angle of view and a number of other things I haven’t even tried. It can now display additional info like golden hour, twilight etc, so it’s even better. I love that I can save my gear and customise its values, so I don’t have to scroll through a lot of shutter speeds for example when I’m shooting with my old film camera that can only go as high as 1/250. This saves a lot of time and it’s very convenient. Love this app! ### 5/5 — Sensor Meter *2025-12-27* Love this app, but it seems to be missing the sensor meter. I don’t know if I don’t see it, please help let me know. ### 2/5 — Used to work great *2025-11-09* I’ve been using this app exclusively for many years and it has just tanked Every time I open the app it either won’t open the camera or won’t give me readings without restarting the app **Developer response:** Hello! I've gotten a couple reports that something has changed in the last week or so. I haven't published a new version of the app so I am investigating. I will update here once I fix the issue. ### 2/5 — Never used it, the moment I use it, ruins it. *2025-11-06* 2 years of never using this app, the moment I'm going to use it...it is laggy, glitchy, never metered properly. I have proper sekonic lightmeter, but I have forget it the last two times of night photography. Those two times were enough show this app is not good...from now on, I may forget the camera, I may forget the lense or the tripod, but never the lightmeter because I can't trust this app. Never. **Developer response:** Hello! I've gotten a couple reports that something has changed in the last week or so. I haven't published a new version of the app so I am investigating. I will update here once I fix the issue. ### 1/5 — Don’t bother *2024-06-03* Can’t even set an ISO to meter off, try and you get an error message, with ‘yes’ instead of ‘okay’ as your only option because it assumes you are metering for the digital sensor on your phone that auto adjusts anyway. Absolutely useless for film photography. There’s free apps better than this. **Developer response:** Hello! Give the latest version a try and let me know if it works. ### 3/5 — Please continue to update to match android app *2023-09-05* This app has so much potential, it leaves a bit to be desired, let me tap to select the area of the screen I want to meter for. I would like better accuracy in metering for the shutter speed when the exposure is longer than 3 seconds . I used the app on android for 3 years and it was perfect **Developer response:** Hello! The iOS app has the same features as Android and actually has a couple extra minor features. Thanks for your patience! ### 5/5 — Best iOS light meter app *2023-04-10* For me this is the best iOS app for my Leica M3 and Hasselblad 500. Easy to use, most accurate unter all apps in the store. I really like the manual calculator wich is easy to use with the EV values. This gives a good understanding of the sunny 16 rule. The last thing I would wish for this app is an implementation of the zone system by Ansel Adams. ### 2/5 — Terrible on iOS *2023-03-20* The image projected is stretched on ALL cameras. Can’t turn off histogram even if you uncheck the option. Can’t tap and select the area you want a reading… this app really needs a lot of work. The Android version is way more polished. For now, save your money and wait to see if the devs fix these issues. **Developer response:** Great feedback! Thank you for reporting. The issues reported here should have been fixed in the latest update, please let me know if they were not addressed on your phone. dev@lightmeter.dev I'm steadily working on bringing the iOS app to parity with the Android app, I've been working on the Android one for almost a decade so there's a lot of code to rewrite. If you have any other feedback, please send it to me: dev@lightmeter.dev ### 4/5 — Pretty nice but... *2022-06-13* ...I cannot select ND filters on my iPhone SE 2020. Please fix! Rest is perfect. ### 1/5 — Accurate but very buggy *2022-05-27* I’ve found this to be accurate and feature filled but very buggy. Eg. Cannot contact developer as button is broken. Selecting a shutter speed in reciprocity calculator bounces you back to main screen. **Developer response:** Hello! Sorry about that, I fixed the reciprocity calculator bug a few versions ago. Please send over any feedback (or bugs) you have: dev@lightmeter.dev ## Frequently asked questions about Light Meter by WBPhoto ### What is Light Meter by WBPhoto? Light Meter by WBPhoto is a professional light meter and exposure calculator app that turns your smartphone into a precision tool for film and digital photography. It helps you nail perfect exposures and master manual camera settings. ### How accurate is Light Meter by WBPhoto? The app is calibrated and tested for accuracy against professional Gossen and Sekonic meters, ensuring reliable readings for your photography. ### What photography calculators are included in Light Meter by WBPhoto? It includes 9 calculators: Depth of Field, Reciprocity, EV/LV Converter, White Balance, Bellows Factor, Flash Guide Number, Sunny 16, EXIF Reader, and Angle of View. ### Can Light Meter by WBPhoto be used for film photography? Yes, it is essential for analog photography, featuring a Reciprocity Calculator for long exposure compensation with various film stocks and a Sunny 16 calculator. ### Does Light Meter by WBPhoto have ads? No, Light Meter by WBPhoto does not contain advertisements. It is a paid application designed for a distraction-free professional experience. ### What devices does Light Meter by WBPhoto support? Light Meter by WBPhoto is available for iPhone, iPad, and iPod devices, running on iOS. ### How often is Light Meter by WBPhoto updated? The app was last updated on March 15, 2026, indicating ongoing development and support. Its current version is 4.9.1. ### What is the price of Light Meter by WBPhoto? Light Meter by WBPhoto is a paid app, priced at $6.99. There are no in-app purchases or subscription fees. ## Version history (last 5 releases) ### 5.3.1 — 2026-08-18 • Add AR Rangefinder — measure subject distance for manual film cameras (LiDAR on iPhone Pro; ARKit on all others) • Send rangefinder readings directly into the Depth of Field Calculator • Add Multi-Point Spot Metering — long-press to pin and compare exposure readings • Add Zone Placement Calculator — place readings on zones, see target exposure • Add Bracket Calculator for exposure bracketing • Add Pinhole Calculator for pinhole cameras • Add Share as Image for social sharing • Add Zone System metering for camera meter • Add Exposure Preview for adjust and ND offsets • Add 20+ new film stocks to reciprocity calculator • Add volume button to start/stop metering • Updated camera meter UI with icon controls • Quick settings access from meter screens • Refreshed settings design • Bug fixes and performance improvements ### 5.2.1 — 2026-05-29 • Add Multi-Point Spot Metering — long-press to pin and compare exposure readings • Add Zone Placement Calculator — place readings on zones, see target exposure • Add Bracket Calculator for exposure bracketing • Add Pinhole Calculator for pinhole cameras • Add Share as Image for social sharing • Add Zone System metering for camera meter • Add Exposure Preview for adjust and ND offsets • Add 20+ new film stocks to reciprocity calculator • Add volume button to start/stop metering • Updated camera meter UI with icon controls • Quick settings access from meter screens • Refreshed settings design • Bug fixes and performance improvements ### 5.1.5 — 2026-05-11 • Add Multi-Point Spot Metering — long-press to pin and compare exposure readings • Add Zone Placement Calculator — place readings on zones, see target exposure • Add Bracket Calculator for exposure bracketing • Add Pinhole Calculator for pinhole cameras • Add Share as Image for social sharing • Add Zone System metering for camera meter • Add Exposure Preview for adjust and ND offsets • Add 20+ new film stocks to reciprocity calculator • Add volume button to start/stop metering • Updated camera meter UI with icon controls • Quick settings access from meter screens • Refreshed settings design • Bug fixes and performance improvements ### 5.1.4 — 2026-05-02 • Nova Medição Pontual Múltipla: pressione e segure para comparar leituras. • Nova Calculadora de Posição de Zona: posicione leituras em zonas e veja a exposição alvo. • Nova Calculadora de Bracketing. • Nova Calculadora Pinhole. • Novo Compartilhamento como Imagem. • Nova medição de Sistema de Zonas. • Nova Pré-visualização da Exposição para ajustes e filtros ND. • Mais de 20 novos filmes na calculadora de reciprocidade. • Use o botão de volume para iniciar/parar a medição. • Interface do fotômetro atualizada. • Acesso rápido às configurações. • Design renovado. • Correções de bugs e melhorias de desempenho. ### 5.1.3 — 2026-04-16 • Nova Medição Pontual Múltipla: pressione e segure para comparar leituras. • Nova Calculadora de Posição de Zona: posicione leituras em zonas e veja a exposição alvo. • Nova Calculadora de Bracketing. • Nova Calculadora Pinhole. • Novo Compartilhamento como Imagem. • Nova medição de Sistema de Zonas. • Nova Pré-visualização da Exposição para ajustes e filtros ND. • Mais de 20 novos filmes na calculadora de reciprocidade. • Use o botão de volume para iniciar/parar a medição. • Interface do fotômetro atualizada. • Acesso rápido às configurações. • Design renovado. • Correções de bugs e melhorias de desempenho. ## Apps similar to Light Meter by WBPhoto | App | Rating | Price | Category | | --- | --- | --- | --- | | [Luxilux Light Meter](https://appshunter.io/ios/app/luxilux-light-meter/id1487384157) | 4.9 (75) | $5.99 | Photo & Video | | [Light Meter Ultra](https://appshunter.io/ios/app/light-meter-ultra/id1558108173) | 4.7 (733) | Free | Photo & Video | | [LightMeter35](https://appshunter.io/ios/app/lightmeter35/id1522046585) | 5.0 (6) | $3.99 | Photo & Video | | [EXIF Viewer by Fluntro](https://appshunter.io/ios/app/exif-viewer-by-fluntro/id944118456) | 4.7 (1,855) | $2.99 | Photo & Video | | [Night Camera HD](https://appshunter.io/ios/app/night-camera-hd/id562160609) | 4.4 (337) | $12.99 | Photo & Video | | [Cine Meter II](https://appshunter.io/ios/app/cine-meter-ii/id846918884) | 4.5 (25) | $24.99 | Photo & Video | ## More apps by William Blaschko - [Tranquili-Tree](https://appshunter.io/ios/app/tranquili-tree/id1499401636) - [Puzzlusion](https://appshunter.io/ios/app/puzzlusion/id6447793558) All apps by William Blaschko: https://appshunter.io/developer/1499401635 --- *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 2026-08-20.*