Lghtmtr vs Simple Negative Image
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lghtmtr
This app provides a minimalist light meter to help users determine ideal exposure settings for photography. It visually demonstrates the relationship between ISO, aperture, and shutter speed, making it intuitive for learning photographers.
- Minimalist light meter
- Intuitive exposure settings
- Visual feedback
- Adjustable ISO, aperture, shutter speed
- Camera profile customization
- Scene reference with readings
Read full descriptionHide full description
Lghtmtr is a beautifully simple light meter that helps you find — and understand — the ideal exposure settings for a scene. Built for film photographers and anyone learning the craft, it makes the relationship between ISO, aperture, and shutter speed feel intuitive and the visual feedback helps reinforce the connection between them. Take a reading, get your settings, and start exploring. Adjust one value and the others respond instantly. Lock settings to experiment and see how each change affects your exposure. You can easily add camera profiles to the app to limit the possible values to what's most relevant to your camera and lens combination. With a visual reference of the scene behind every reading, Lghtmtr helps you shoot with clarity and confidence.
Simple Negative Image
Easily invert image colors to create unique artistic effects. This tool allows for the inversion of negatives and positives, transforming ordinary photos into tasteful art-like creations. Perfect for users seeking straightforward image processing.
- Invert image colors
- Create unique images
- Generate art-like visuals
- Process images easily
- Invert negatives and positives
Read full descriptionHide full description
A simple function application that only inverts the color of the image By inverting colors and inverting negatives and positives, you can create unique images and tasteful art-like images. For those who want to process images easily
Screenshots
Verdict
The clearest difference is in-app purchases: Simple Negative Image at none against Lghtmtr's 1. Simple Negative Image also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.5). Lghtmtr's advantage is ads (none vs shown) and review sentiment (80% vs 56%). On price, rating, ratings volume and update cadence 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. Lghtmtr sells 1 one-off in-app purchase. Simple Negative Image asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for Lghtmtr against 4.5 for Simple Negative Image. Both are backed by a comparable volume of ratings — 129 and 115 respectively. Written reviews are what separate them: 80% of Lghtmtr's written reviews are positive against 56% of Simple Negative Image's.
Lghtmtr ships an update every 4 months, Simple Negative Image every 2 months. The most recent releases landed on September 27, 2026 and September 25, 2026 respectively.
| Parameter | Lghtmtr | Simple Negative Image |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (129 ratings) | 4.5 (115 ratings) |
| Positive reviews | 79.7% of reviews — better | 56.3% of reviews |
| Number of ratings | 129 — better | 115 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 15.6 — better |
| Further details — not scored | ||
| Size | 25 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Jacque | Ryouhei Azuma |
Customer experience
Lghtmtr
Simple Negative Image
In-app purchases
Lghtmtr
- Coffee tip$4.99
Simple Negative Image
No in-app purchases
Questions
Is Lghtmtr free?
Is Simple Negative Image free?
Which has better reviews, Lghtmtr or Simple Negative Image?
Do Lghtmtr or Simple Negative Image have ads?
Which is updated more often, Lghtmtr or Simple Negative Image?
Other comparisons
