PAAT vs UnitBloom
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
PAAT
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PAAT was developed to enhance the capabilities of States in assessing radiation alarms triggered by a person. In most cases, the reason the person will set off an alarm is a medical treatment or diagnostic procedure involving the administration of a radiopharmaceutical. When a radiation alarm is triggered by a person, PAAT can be used by the investigating officer to conduct a simple interview and measurement. The information in the App provides assistance for the investigating officers in States in the assessment of radiation alarms caused by persons to more effectively and efficiently combat the movement of nuclear and other radioactive materials out of regulatory control at points of entry and major public events (MPE). Note: ⢠The App does not collect any identifying personal data. ⢠The dose estimates in the App are for standard models and should not be considered patient-specific under any circumstances. ⢠The assessment results shall be used only for nuclear security purposes. ⢠The App has not been extensively tested on all platforms, under all conditions. As such, users of this tool must verify all results prior to decision making.
UnitBloom
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UnitBloom is a beautifully designed, fast, and intuitive unit converter built for everyday calculations. Whether you're converting Fahrenheit to Celsius, pounds to kilograms, or miles to kilometers, UnitBloom delivers instant and accurate results with a clean, distraction-free interface. Key Features: ⢠Convert length, weight, temperature, area, volume, time, and data ⢠Instant real-time calculation ⢠Supports negative values (temperature) ⢠Clean gradient design with smooth interactions ⢠English and Chinese language support ⢠Automatically follows system language ⢠Lightweight and easy to use Designed for simplicity and clarity, UnitBloom focuses on speed and usability without unnecessary complexity. Perfect for students, travelers, engineers, and anyone who needs quick unit conversions. No ads. No tracking. Just fast conversion.
Screenshots
Verdict
The clearest difference is update cadence: UnitBloom at weekly against PAAT's every 3 weeks. PAAT's advantage is iOS requirement (13.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PAAT ships an update every 3 weeks, UnitBloom weekly. The most recent releases landed on September 9, 2026 and September 16, 2026 respectively.
| Parameter | PAAT | UnitBloom |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Weekly ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 ā better | 16.6 |
| Further details ā not scored | ||
| Size | 11 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | IAEA | RePrice LLC |
In-app purchases
PAAT
No in-app purchases
UnitBloom
No in-app purchases









