Comparison

Personal Dosimetry Assistant vs RAyTools

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

Head to head
About

Personal Dosimetry Assistant

Features
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The Personal Dosimetry Assistant (PDA) is a handy tool for personnel working in the field of radiation. This pocket calculator is easy to use and provides quick access to frequently used calculations. Whether it’s design, development or maintenance, Stroetenga Technologies offers highly-skilled IT solutions the meet the current industry standards.

About

RAyTools

Features
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RAyTools 3 is installation technician’s best friend and a result of our continued effort to build upon the success of previous generation of the app. RAyTools is a modern mobile and tablet app simplifying planning, deployment and maintenance of RAy links. RAyTools has got 3 main features: β€’ Link Calculator supporting all our links and antennas, giving you the same quality of results as our much-loved website calculator; β€’ Antenna Alignment for voltmeter-free installation, including real-time RSS plot and acoustic output; β€’ Link management access. Next time, leave your heavy gear at home and align antennas only using your phone! Requirements: β€’ RAy3 with firmware version 2.0.11.0 or higher installed – see Download section on http://www.racom.eu/ray-downl-eng; β€’ WiFi module plugged in to RAy unit – see http://www.racom.eu/wifi2-eng; β€’ WiFi enabled in RAy management – see chapter β€œUSB Accessories” in user manual; β€’ Smartphone or tablet connected to RAy unit by WiFi. Use of device location: Your location may be used if the user decides to use the feature to automatically input coordinates into link calculation. It is shared anonymously withΒ  Google Maps Elevation API service to request terrain height map of the link. No information is saved outside your device.

Screenshots

Personal Dosimetry Assistant3 screens
RAyTools4 screens

Verdict

The call

The clearest difference is iOS requirement: Personal Dosimetry Assistant at 11.0 against RAyTools's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

Personal Dosimetry Assistant ships an update every 2 months, RAyTools every 4 months. The most recent releases landed on May 16, 2026 and September 18, 2026 respectively.

Scorecard1 real difference Β· 5 level
Personal Dosimetry Assistant versus RAyTools: the parameters behind the verdict, then further details
ParameterPersonal Dosimetry AssistantRAyTools
PriceFreeFree
Update frequencyEvery 2 months β€” betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS11.0 β€” better15.1
Further details β€” not scored
Size21 MB38 MB
Age rating4+4+
DeveloperStroetenga Technologies B.V.RACOM s.r.o.

In-app purchases

None

Personal Dosimetry Assistant

No in-app purchases

None

RAyTools

No in-app purchases

Questions

Is Personal Dosimetry Assistant free?
Personal Dosimetry Assistant is free to download, with no in-app purchases.
Is RAyTools free?
RAyTools is free to download, with no in-app purchases.
Do Personal Dosimetry Assistant or RAyTools have ads?
Neither Personal Dosimetry Assistant nor RAyTools shows ads.
Which is updated more often, Personal Dosimetry Assistant or RAyTools?
Personal Dosimetry Assistant ships an update every 2 months, and RAyTools every 4 months. Most recently, Personal Dosimetry Assistant was updated on May 16, 2026 and RAyTools on September 18, 2026.

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