Lghtmtr vs PropChat
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
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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.
PropChat
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PropChat is the solution for chat, video call and phone call screens in film, TV, advertising and digital content. It simulates a real phone — messages, calls, lock screen — controlled in real time by the production team, so the actor lives the scene and you save time and budget in post-production. HOW IT WORKS The actor's phone runs PropChat in scene mode, showing a realistic messaging interface. From another device (or a hidden panel on the same phone), the operator behind the scenes triggers messages, calls and screen changes exactly when the script calls for them. WHAT YOU CAN DO • Send messages live, or build a queue of prepared messages and fire the next one with a tap or a key. • Voice notes, photos, videos and simulated locations as received messages. • Incoming voice and video calls, with a chroma-key color or a background video for effects in post-production. • Lock screen with realistic notifications, plus the real clock and battery level. • Customize the contact, the chat's look and the wallpaper for each scene. • Control everything with Bluetooth keyboard shortcuts, without touching the actor's screen. • Remote control: run the prop phone from an iPad or another iPhone, without relying on the set's Wi-Fi. • Automatic backup of the operator's setup, so you don't lose your configuration between takes. • English and Spanish, with a 12-hour or 24-hour clock. WHO IT'S FOR Directors, assistant directors, producers, content creators and film students who need a message, a call or a notification to appear exactly when the scene requires it, without the risk of a real notification coming in mid-take. PropChat includes a free trial and several plans (weekly, a 6-week Production pass, or annual) — see the options inside the app. REMOTE CONTROL WITHOUT THE SET'S WI-FI Turn an iPad or a second iPhone into the operator's control pad and run the actor's prop phone over a direct connection (Bluetooth / peer-to-peer Wi-Fi), without relying on the set's network or an internet signal. Ideal for location shoots, film and TV sets, independent productions and content creators who need reliable remote control of their prop smartphone wherever they shoot. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: PropChat at every 6 days against Lghtmtr's every 4 months. Lghtmtr's advantage is iOS requirement (17.5 vs 26.5). 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. Lghtmtr sells 1 one-off in-app purchase and PropChat sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Lghtmtr ships an update every 4 months, PropChat every 6 days. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.
| Parameter | Lghtmtr | PropChat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (129 ratings) — better | — |
| Positive reviews | 79.7% of reviews | — |
| Number of ratings | 129 — better | — |
| Update frequency | Every 4 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.5 — better | 26.5 |
| Further details — not scored | ||
| Size | 25 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Jacque | CRISTIAN DANILO ZORRO SANCHEZ |
In-app purchases
Lghtmtr
- Coffee tip$4.99
PropChat
- PropChat Semanal3 Days trial$9.997 Days
- PropChat Anual$99.991 Year
- Producción 6 Semanas$49.99









