Comparison

iMobile Reader vs Light Meter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iMobile Reader

Features
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“iMobile Reader” is an extremely convenient operated application software for memory expansion on iOS device. It provides a two -way storage between iOS devices and external storage, that means , you can transfer the data from the devices which has lighting connector to the external storage to free up your devices space instantly; also you can transfer the external storage data to your iPhone for better view/share. It provides thumbnail view, create new folder , sort files via different ways and rename functions; It provides files( include photos/videos) view , copy , move , share,delete functions; It provides play the photos by sliding show mode setting, video’s format supports MP4, Movie, AVI; It provides contacts backup -restore, just one click easily to finish this process; This solution provides users a easiest way to manage your data in your i-devices, anywhere you go , it can be on the go and perfectly fits into your life.

About

Light Meter

This app helps film photographers precisely measure light, distance, and depth of field before taking a shot. It offers tools for exposure evaluation, flash calculation, and reciprocity failure compensation, with advanced features available via a one-time purchase.

Highlights
  • Light metering
  • Zone metering
  • Flash calculator
  • Reciprocity failure compensation
  • Distance meter (LiDAR)
  • Depth of field calculator
  • Gear library
Features
Read full description

FilmBox Toolkit Shoot film with greater confidence. From exposure decisions and manual focusing to long-exposure compensation and photo notes, FilmBox Toolkit brings essential film photography tools together on your iPhone. Make informed choices before you press the shutter. ZONE SYSTEM METERING Visualize readings from different areas of your scene using Zone System principles. Compare highlights and shadows, decide which details to preserve, and adjust your exposure. Built for situations where careful exposure control matters. FREE TOOLS • Light Meter (basic mode): Evaluate ambient light and get exposure settings to work from. • LiDAR Rangefinder (up to 1 meter): Estimate subject distance to assist manual focusing and flash calculations. Requires compatible hardware. • Flash Calculator (GN): Calculate settings from the guide number for shooting without TTL. • Depth of Field Calculator: Estimate your focus range and hyperfocal distance. • Reciprocity Failure Compensation: Calculate long-exposure adjustments based on your selected film. • Shutter Speed Test: Help check your camera's shutter speed and assess its performance. • Negative Viewer: Use the camera to preview negatives as positive images and inspect their contents. For previewing only; not a replacement for professional scanning or post-processing. • Gear Library & Photo Log: Organize film stocks, flashes, and preferred settings, and keep shooting notes for later reference. FREE & PRO FilmBox Toolkit is free to download. All features are free except the three Pro features below. Free features include manual input for Zone System metering, basic light metering, rangefinding up to 1 meter, the Shutter Speed Test, and the Negative Viewer. FilmBox Pro unlocks: • Zone System metering: real-time light readings. • Light Meter: 1-degree spot metering mode. • Rangefinder: distance measurements beyond 1 meter. Choose either: • A one-time lifetime purchase. • An annual subscription with access during the subscription period. See the in-app purchase screen for current pricing and purchase terms. DEVICE COMPATIBILITY • Standard SDR metering: Compatible iPhones running iOS 17 or later. • Apple Log metering: Uses 10-bit Apple Log data. Supported on iPhone 15 Pro/Pro Max, 16 Pro/Pro Max, and 17 Pro/Pro Max. The app selects the appropriate mode for your device. • LiDAR rangefinding: Requires a LiDAR-equipped iPhone: Pro and Pro Max models in the iPhone 12, 13, 14, 15, 16, and 17 families. Devices without Apple Log or LiDAR can still use other compatible features. Hardware support and Pro access are separate requirements. PRIVACY Metering, depth of field, and other calculations run locally on your device. We do not collect or upload your personal data. Privacy Policy: https://www.filmboxtoolkit.com/privacy.html TERMS OF USE This app is licensed under Apple's standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iMobile Reader3 screens
Light Meter4 screens

Verdict

The call

The clearest difference is in-app purchases: iMobile Reader at none against Light Meter's 2. iMobile Reader also leads on device support (3 vs 1) and iOS requirement (9.0 vs 16.6). Light Meter's advantage is update cadence (weekly vs every 2 months). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Light Meter sells 2 in-app purchases, starting at $7.99 per year. iMobile Reader asks for nothing beyond the download.

UpkeepUpdate frequency

iMobile Reader ships an update every 2 months, Light Meter weekly. The most recent releases landed on September 20, 2026 and September 23, 2026 respectively.

Scorecard4 real differences · 6 level
iMobile Reader versus Light Meter: the parameters behind the verdict, then further details
ParameteriMobile ReaderLight Meter
PriceFreeFree
Rating—3.6 (5 ratings) — better
Positive reviews—85.2% of reviews
Number of ratings—5 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS9.0 — better16.6
Further details — not scored
Size93 MB33 MB
Age rating17+4+
Developer群辉 喻卓 朱

In-app purchases

None

iMobile Reader

No in-app purchases

2 purchases

Light Meter

Subscriptions1
  • FilmBox Toolkit Pro Subscription$7.991 Year
One-time1
  • FilmBox Toolkit Pro$17.99

Questions

Is iMobile Reader free?
iMobile Reader is free to download, with no in-app purchases.
Is Light Meter free?
Light Meter is free to download, with in-app purchases available.
Do iMobile Reader or Light Meter have ads?
Neither iMobile Reader nor Light Meter shows ads.
Which is updated more often, iMobile Reader or Light Meter?
iMobile Reader ships an update every 2 months, and Light Meter weekly. Most recently, iMobile Reader was updated on September 20, 2026 and Light Meter on September 23, 2026.

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