# InterSpec Radiation Analysis vs RDS

The clearest difference is rating: RDS at 5.0 against InterSpec Radiation Analysis's 4.3. RDS also leads on update cadence (every 3 months vs every 11 months). InterSpec Radiation Analysis's advantage is ratings volume (12 vs 1) and iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

RDS holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: InterSpec Radiation Analysis has 12 ratings behind it against 1, so its average is the more settled of the two.

InterSpec Radiation Analysis ships an update every 11 months, RDS every 3 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | InterSpec Radiation Analysis | RDS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (12 ratings)](https://appshunter.io/ios/app/interspec-radiation-analysis/id1447080767/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rds-32/id1623034787/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 80 MB | 49 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [William Johnson](https://appshunter.io/developer/1447080766) | [Mirion Technologies, Inc.](https://appshunter.io/developer/561534087) |

## What reviewers say

### InterSpec Radiation Analysis

[App page](https://appshunter.io/ios/app/interspec-radiation-analysis/id1447080767)

Analyze nuclear radiation spectral data to identify nuclides, determine source activity, and calculate shielding. Supports various detector file formats and includes tools for dose rate calculations and nuclide decay information.

**Highlights:** Spectral nuclear radiation data analysis, Nuclide identification, Source activity determination, Shielding amount calculation, Spectral file format conversion, Dose rate calculations, Interactive nuclide decay information

**Features:** macOS Compatibility

**In-app purchases:** none


### RDS

[App page](https://appshunter.io/ios/app/rds-32/id1623034787)

This utility app connects to a radiation survey meter, displaying real-time data and allowing parameter adjustments. It also integrates with supervision services for enhanced monitoring.

**Highlights:** Connect to RDS-32 survey meter, Display real-time device data, Edit setpoints and parameters, Connect to RadResponder, Connect to Spirview Mobile

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is InterSpec Radiation Analysis free?

InterSpec Radiation Analysis is free to download, with no in-app purchases.

### Is RDS free?

RDS is free to download, with no in-app purchases.

### Which has better reviews, InterSpec Radiation Analysis or RDS?

RDS is rated higher. InterSpec Radiation Analysis averages 4.3 out of 5 from 12 ratings, while RDS averages 5.0 from 1 ratings.

### Do InterSpec Radiation Analysis or RDS have ads?

Neither InterSpec Radiation Analysis nor RDS shows ads.

### Which is updated more often, InterSpec Radiation Analysis or RDS?

InterSpec Radiation Analysis ships an update every 11 months, and RDS every 3 months. Most recently, InterSpec Radiation Analysis was updated on October 24, 2026 and RDS on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*