Comparison

Lessr vs Light Meter LuMe

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

Head to head
About

Lessr

Shrink large photos, videos, and PDFs without uploading them online. Convert formats, merge documents, remove backgrounds, resize images, and more, all on your device. Offers batch processing for efficiency and prioritizes user privacy with no internet connection or ads required.

Highlights
  • Compress photos, videos, and PDFs
  • Convert between various image and video formats
  • Merge, split, and create PDFs
  • Remove photo backgrounds
  • Resize images for social media or custom dimensions
  • Trim videos and create GIFs
  • Batch processing for multiple files
Features
Read full description

That video too big to send on WhatsApp? Photos eating up your storage? Need to merge PDFs before a deadline? You shouldn't have to upload your personal files to some random website just to shrink them. With Lessr, everything happens right on your iPhone or iPad — no internet needed, no accounts, no ads. Your files never leave your device. HOW IT WORKS 1. Pick your files — photos, videos, or PDFs 2. Choose what you need — compress, convert, merge, or more 3. Done — save or share your results instantly That's it. No waiting for uploads. No wondering who else can see your files. COMPRESS WITHOUT LOSING QUALITY Shrink videos from hundreds of megabytes to just a few — perfect for WhatsApp, email, or freeing up storage. Compress photos and PDFs too, with full control over quality. Choose from presets like WhatsApp (16 MB), Email (25 MB), or set your own target size. CONVERT ANY FORMAT HEIC photos others can't open? MOV videos that won't play on every device? Convert between JPEG, PNG, WebP, HEIC, MP4, MOV, M4A, and WAV — all in seconds. PDF TOOLS YOU'LL ACTUALLY USE Merge multiple PDFs into one. Split pages out. Compress oversized PDFs. Create PDFs from photos. No more hunting for a website to do a simple PDF task. MORE THAN JUST A COMPRESSOR • Remove backgrounds from photos — clean cutouts in one tap • Resize images for Instagram, Facebook, passport photos, or any custom size • Trim videos to the exact clip you need • Turn videos or Live Photos into GIFs • Make custom iPhone ringtones from any video or audio • Extract audio from videos • Mute videos — remove sound without re-encoding • Strip metadata for privacy before sharing BATCH PROCESSING Select multiple files at once. Compress 20 photos in one go instead of one by one. Your time matters. BUILT FOR YOUR PRIVACY • No internet connection required — ever • No cloud uploads — files stay on your device • No account or sign-up needed • No ads • No personal data collected — only anonymous usage statistics Free to use with 2 conversions per day. Upgrade to Pro for unlimited access — one-time purchase, no subscriptions.

About

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

Lessr4 screens
Light Meter LuMe4 screens

Verdict

The call

The clearest difference is update cadence: Light Meter LuMe at every 5 days against Lessr's fortnightly. Light Meter LuMe also leads on ratings volume (19 vs 5). On price, rating, review sentiment 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. Lessr sells 3 in-app purchases, starting at $0.99 per month and Light Meter LuMe sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Lessr against 4.9 for Light Meter LuMe. Both are backed by a comparable volume of ratings — 5 and 19 respectively. Written reviews are what separate them: 100% of Lessr's written reviews are positive against 93% of Light Meter LuMe's.

UpkeepUpdate frequency

Lessr ships an update fortnightly, Light Meter LuMe every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Lessr versus Light Meter LuMe: the parameters behind the verdict, then further details
ParameterLessrLight Meter LuMe
PriceFreeFree
Rating5.0 (5 ratings) — better4.9 (19 ratings)
Positive reviews100.0% of reviews — better93.3% of reviews
Number of ratings519 — better
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.0 — better
Further details — not scored
Size18 MB16 MB
Age rating4+4+
DeveloperSonia BajajContrast Studio

Customer experience

Lessr

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Light Meter LuMe

All ratings19 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive93.3%
Neutral6.7%
Negative0.0%

In-app purchases

3 purchases

Lessr

Subscriptions2
  • Pro Monthly$0.991 Month
  • Pro Annual$4.991 Year
One-time1
  • Pro Lifetime$9.99
1 purchases

Light Meter LuMe

One-time1
  • LuMe Pro Lifetime2 variants$6.99

Questions

Is Lessr free?
Lessr is free to download, with in-app purchases available.
Is Light Meter LuMe free?
Light Meter LuMe is free to download, with in-app purchases available.
Which has better reviews, Lessr or Light Meter LuMe?
Lessr is rated higher. Lessr averages 5.0 out of 5 from 5 ratings, while Light Meter LuMe averages 4.9 from 19 ratings.
Do Lessr or Light Meter LuMe have ads?
Neither Lessr nor Light Meter LuMe shows ads.
Which is updated more often, Lessr or Light Meter LuMe?
Lessr ships an update fortnightly, and Light Meter LuMe every 5 days. Most recently, Lessr was updated on November 5, 2026 and Light Meter LuMe on October 31, 2026.

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