Comparison

UV Analyzer vs Optris calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

UV Analyzer

Features
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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.

About

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

UV Analyzer4 screens
Optris calculator3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 13, 2026 and December 3, 2025 respectively.

Scorecard2 real differences · 4 level
UV Analyzer versus Optris calculator: the parameters behind the verdict, then further details
ParameterUV AnalyzerOptris calculator
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.612.0 — better
Further details — not scored
Size22 MB31 MB
Age rating4+4+
DeveloperIST METZ GmbH & Co.KGOptris GmbH

In-app purchases

None

UV Analyzer

No in-app purchases

None

Optris calculator

No in-app purchases

Questions

Is UV Analyzer free?
UV Analyzer is free to download, with no in-app purchases.
Is Optris calculator free?
Optris calculator is free to download, with no in-app purchases.
Do UV Analyzer or Optris calculator have ads?
Neither UV Analyzer nor Optris calculator shows ads.
Which is updated more often, UV Analyzer or Optris calculator?
UV Analyzer ships an update every 2 months, and Optris calculator every 2 months. Most recently, UV Analyzer was updated on September 13, 2026 and Optris calculator on December 3, 2025.

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