UV Analyzer vs Optris calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UV Analyzer
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**Disclaimer: The app requires additional equipment and requires adequate use. Incorrect use does not entitle the user to make any claims against IST METZ GmbH & Co. KG. The UV Analyzer is an app-based UV measuring device. It consists of the UV Analyzer App, the UV Analyzer measuring strips and the UV Analyzer Stick. The UV Analyzer Stick and the UV Analyzer measuring strips are distributed by IST Metz GmbH & Co. KG. Measuring is quite easy. Put the strip on your substrate, irradiate it with UV and measure the strip with the stick. The app will show you the measured dose in mJ/cm². This dose value can be compared with your reference value. Reference values for the UV Analyzer are determined directly by you on site when the system is new. The measurements can be exported for quality assurance and documentation.
Optris calculator
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The Optris Calculator app combines the spot size calculator of the IR pyrometers and the optics calculator of the IR cameras from Optris. For each distance, the spot size of the respective device is calculated. For a correct temperature measurement with pyrometers, it is important that the spot size is not larger than the object to be measured. In the case of the cameras, the measuring area on the object surface to be analyzed is precisely determined. Based on lens information and the distance to the target, field of view dimensions, pixel size (IFOV), and MFOV (from 2x2 pixels to 4x4 pixels depending on product type) are precisely calculated. Thus, the thermal imaging camera can be optimally positioned, and measurement errors avoided. The Optris Calculator is a very helpful tool for selecting the appropriate optics fitting to the respective application. The right choice of optics is needed. App features: • Calculates the spot size of each device for each distance • Always up to date through regular updates
Screenshots
Verdict
The clearest difference is device support: Optris calculator at 3 against UV Analyzer's 1. Optris calculator also leads on iOS requirement (12.0 vs 18.6). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 13, 2026 and December 3, 2025 respectively.
| Parameter | UV Analyzer | Optris calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | IST METZ GmbH & Co.KG | Optris GmbH |
In-app purchases
UV Analyzer
No in-app purchases
Optris calculator
No in-app purchases
Questions
Is UV Analyzer free?
Is Optris calculator free?
Do UV Analyzer or Optris calculator have ads?
Which is updated more often, UV Analyzer or Optris calculator?
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