Spectro by Variable vs Human RHD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spectro by Variable
This app enables color professionals to precisely measure, match, and communicate color data using connected devices. Access extensive color libraries and analyze spectral curves for accurate results anytime, anywhere.
- Scan, match, and compare colors
- View spectral curves and LAB values
- Access extensive brand color libraries
- Analyze colors under multiple light sources
- Store and export scan data
- Create and store color standards
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Now Available: Spectro by Variable + Pantone® Color Subscription by Variable. Users are now able to access more than 16,500 Pantone colors directly through the Spectro by Variable app when they subscribe to a Pantone Color Subscription within. Created with frictionless color communication in mind, the Spectro by Variable app connects to the Spectro 1 and Spectro 1 Pro devices, allowing color professionals to achieve professional-grade color matches and view deep color data anytime, anywhere. About the Spectro 1 and Spectro 1 Pro Devices: Spectro 1 is a compact, affordable color measurement tool for accurately measuring and communicating color at the professional and industrial level. Using patented technology, the Spectro units are true spectrophotometers that deliver accuracy and repeatability comparable to expensive benchtop spectrophotometers—for a fraction of the price. Features: Scan, match, and compare colors View spectral curves for scanned colors Achieve exact matches with spectral curve and LAB values Have access to dozens of brands like Behr, Benjamin Moore, Dulux, PPG, Sherwin-Williams in the palm of your hand View matches under four different light sources including A, F2, D50, and D65 (Incandescent, fluorescent, horizon, and noon daylight) Include 2 & 10 degree observations Store scans and scan data Export scan history, inspection history, and saved colors Save and export spectral curve data in 10 nm increments between 400-700 nm Create and store standards through the Saved Colors features Supports multiple dE formulas And much more!
Human RHD
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Human Manager is a module that, together with RS, DO, and CE, addresses the organizational challenges that arise on a daily basis in relation to the company's internal processes. It allows a Supervisor to be assigned to manage personnel-related matters such as time tracking, training, evaluations, absence approvals, requisition requests, and more.
Screenshots
Verdict
The clearest difference is in-app purchases: Human RHD at none against Spectro by Variable's 5. Human RHD also leads on update cadence (weekly vs every 3 weeks). Spectro by Variable's advantage is iOS requirement (13.4 vs 15.6). 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. Spectro by Variable sells 5 in-app purchases, starting at $9.99 per month. Human RHD asks for nothing beyond the download.
Spectro by Variable ships an update every 3 weeks, Human RHD weekly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Spectro by Variable | Human RHD |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (121 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 121 — better | — |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 84 MB | 131 MB |
| Age rating | 4+ | 4+ |
| Developer | Variable Technologies LLC | VenturesSoft México |
In-app purchases
Spectro by Variable
- Monthly$9.991 Month
- Monthly$15.991 Month
- Quality Control Module1 Month trial$75.001 Month
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- Annual$99.991 Year
- Annual$149.991 Year
Human RHD
No in-app purchases
Questions
Is Spectro by Variable free?
Is Human RHD free?
Do Spectro by Variable or Human RHD have ads?
Which is updated more often, Spectro by Variable or Human RHD?
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