GhostOSC vs LightCalc.io
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
GhostOSC
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GhostOSC is your hands-free remote control for Blackout Lighting Console. Talk, and GhostOSC will interpret and send OSC commands to Blackout. GhostOSC also includes a number/button pad for discrete remote operations.
LightCalc.io
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LightCalc is the on-set lighting tool built for cinematographers, gaffers and lighting professionals. Stop doing mental maths under pressure - get the right exposure, the right fixture, and the right setup in seconds. Exposure Calculator Input your camera settings - T-stop, ISO, shutter angle, frame rate, ND filters - and instantly see the illuminance your scene needs. Switch between lux and foot-candles with one tap. Ambient Light Meter Use your iPhone camera as a live lux meter. Point at any surface to get a real-time ambient reading and feed it directly into your calculations - no separate hardware needed. Fixture Comparison Compare up to four lighting fixtures side by side at any distance. Adjust count and dimming per fixture and see relative output at a glance. Power & Distance Solver Know exactly what dimming level or distance you need to hit your target exposure. Works with your chosen fixture, modifier, diffusion and gel. Full Fixture Library Access a curated library of professional fixtures and modifiers. Plus users can add their own custom fixtures and diffusion materials - synced across web and mobile. Projects Save your setups and reload them on the next shoot. Your lighting data travels with you. Built for the Set Dark UI, fast inputs, haptic feedback - designed to be used in low-light environments with one hand while holding a light meter in the other. LightCalc requires an active LightCalc Plus subscription. Manage your subscription at lightcalc.io. Privacy Policy: https://lightcalc.io/privacy-policy | Terms of Use: https://lightcalc.io/terms-conditions
Screenshots
Verdict
The clearest difference is in-app purchases: GhostOSC at none against LightCalc.io's 1. On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. LightCalc.io sells 1 in-app purchase, starting at $34.99 per year. GhostOSC asks for nothing beyond the download.
GhostOSC ships an update every 2 weeks, LightCalc.io every 3 weeks. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.
| Parameter | GhostOSC | LightCalc.io |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks โ better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.2 | 18.0 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Electric Eye AB | Matthias Streicher-Feldhofer |
In-app purchases
GhostOSC
No in-app purchases
LightCalc.io
- LightCalc Plus$34.991 Year









