Photometrics vs Thetis Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Photometrics
Access photometric data for ARRI light fixtures, including discontinued models and electronics ballasts. Features include illuminance, beam angle, luminous distribution graphs, and light properties. Tools for comparison, DMX calculations, and product catalogs are also available.
- Photometric data (illuminance, beam angle)
- Luminous distribution graphs
- Light properties (CRI, TM30, TLCI)
- Metric and Imperial units
- Camera exposure information
- Project creation and preset saving
- Lamphead comparison tool
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The ARRI Photometric App gives you the ability to quickly reference the photometric characteristics of all of the ARRI light fixtures. It includes data for discontinued lampheads and our portfolio of Electronics Ballasts (EB). In the Tool section you find more useful resources. Data - Photometrics incl illuminance and beam angle and diameter - Luminous Distribution Graph - Light Properties like technical specification and color metrics (CRI, TM30, TLCI) - Metric and Imperial Units - Camera Exposure and Aperture Information - Create projects and save preset fixtures - Bulb Selection Tools - Compare Lampheads - DMX Implementation Tables - DMX Conversion Calculator - CCL Calculator - Product Catalogue
Thetis Tools
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Applicazione Ufficiale per la piattaforma di asta live Thetis Tramite questa applicazione i clienti thetis possono trasmettere in diretta live il video della propria sessione d'asta all'applicativo asta live Thetis
Screenshots
Verdict
Photometrics and Thetis Tools are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Photometrics ships an update every 5 months, Thetis Tools every 7 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | Photometrics | Thetis Tools |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (7 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 5 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 105 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | ARRI Group | Thetis srl |
In-app purchases
Photometrics
No in-app purchases
Thetis Tools
No in-app purchases
Questions
Is Photometrics free?
Is Thetis Tools free?
Do Photometrics or Thetis Tools have ads?
Which is updated more often, Photometrics or Thetis Tools?
Other comparisons
