# Rdio Scanner vs Fire Pump Calc

The clearest difference is rating: Fire Pump Calc at 4.3 against Rdio Scanner's 3.3. Fire Pump Calc also leads on in-app purchases (none vs 1) and review sentiment (75% vs 44%). Rdio Scanner's advantage is update cadence (monthly vs every 8 months) and ratings volume (84 vs 4). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Rdio Scanner sells 1 in-app purchase, starting at $39.99 per year. Fire Pump Calc asks for nothing beyond the download.

Fire Pump Calc holds the better App Store score, 4.3 against 3.3. That said, the two scores are not equally well evidenced: Rdio Scanner has 84 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 44% of Rdio Scanner's written reviews are positive against 75% of Fire Pump Calc's.

Rdio Scanner ships an update monthly, Fire Pump Calc every 8 months. The most recent releases landed on September 21, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | Rdio Scanner | Fire Pump Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (84 ratings)](https://appshunter.io/ios/app/rdio-scanner/id1563065667/reviews) | **[4.3 (4 ratings)](https://appshunter.io/ios/app/fire-pump-calc/id6739542307/reviews)** |
| Number of ratings | **84** | 4 |
| Positive reviews | 44.2% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 8 months |
| Monetization | Subscription | **Free** |
| Size | 52 MB | 6 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Saubeo Solutions](https://appshunter.io/developer/1563065669) | [Justin Medeiros](https://appshunter.io/developer/1782040504) |

## What reviewers say

### Rdio Scanner

[App page](https://appshunter.io/ios/app/rdio-scanner/id1563065667)

This is the native client for an open-source project that scans and identifies audio. It offers premium features through an annual subscription, which automatically renews unless canceled.

**Highlights:** Native client application, Premium features, Annual subscription, Automatic renewal, Cancel anytime

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $39.99 | per year |


### Fire Pump Calc

[App page](https://appshunter.io/ios/app/fire-pump-calc/id6739542307)

This professional hydraulic calculator assists fire service professionals and students with complex calculations for pump operations. It accurately determines pump discharge pressure, friction loss, elevation changes, and appliance pressure loss, all designed for real-world fireground scenarios. The app works offline and requires no account for immediate use.

**Highlights:** Pump Discharge Pressure (PDP) calculation, Friction loss for any hose lay, Elevation gain and loss calculation, Appliance pressure loss, Nozzle pressure calculation, Offline functionality, No account required

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rdio Scanner free?

Rdio Scanner is free to download, with in-app purchases available.

### Is Fire Pump Calc free?

Fire Pump Calc is free to download, with no in-app purchases.

### Which has better reviews, Rdio Scanner or Fire Pump Calc?

Fire Pump Calc is rated higher. Rdio Scanner averages 3.3 out of 5 from 84 ratings, while Fire Pump Calc averages 4.3 from 4 ratings.

### Do Rdio Scanner or Fire Pump Calc have ads?

Neither Rdio Scanner nor Fire Pump Calc shows ads.

### Which is updated more often, Rdio Scanner or Fire Pump Calc?

Rdio Scanner ships an update monthly, and Fire Pump Calc every 8 months. Most recently, Rdio Scanner was updated on September 21, 2026 and Fire Pump Calc on August 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.*