ChromaCalc vs GhostOSC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChromaCalc
This tool helps cinematographers match and find equivalent colors for LED lighting fixtures. It uses spectral data from real instruments to achieve desired color intentions with various lighting and camera settings.
- Match LED lighting fixtures
- Find equivalent light colors
- Use spectral data
- Configure lighting instruments
- Adjust camera settings
- Achieve color intent
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With the advent of LED lighting fixtures for cinematography, it can be a challenge to match different lighting instruments to each other or to an intended color reference or to find equivalent light colors under different white points. This calculator uses spectral data measured from real world lighting instruments to help you find the best combination of settings to use on a variety of popular lighting instruments and cameras to achieve your intent. This app is licensed under the standard Apple license agreement which can be found here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
Screenshots
Verdict
The clearest difference is in-app purchases: GhostOSC at none against ChromaCalc's 2. GhostOSC also leads on update cadence (every 2 weeks vs every 8 months). ChromaCalc's advantage is iOS requirement (12.0 vs 18.2). On price, ads 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. ChromaCalc sells 2 in-app purchases, starting at $9.99 per month. GhostOSC asks for nothing beyond the download.
ChromaCalc ships an update every 8 months, GhostOSC every 2 weeks. The most recent releases landed on September 29, 2026 and October 17, 2026 respectively.
| Parameter | ChromaCalc | GhostOSC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (14 ratings) — better | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 8 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Chromatic Applications LLC | Electric Eye AB |
In-app purchases
ChromaCalc
- Monthly Subscription$9.991 Month
- Yearly Subscription$99.991 Year
GhostOSC
No in-app purchases
