# Flow Rate Conversion vs RIM Scanner

The clearest difference is price: RIM Scanner at Free against Flow Rate Conversion's $2.99. RIM Scanner also leads on update cadence (every 10 months vs every 29 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

RIM Scanner is free to download; Flow Rate Conversion costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Flow Rate Conversion ships an update every 29 months, RIM Scanner every 10 months. The most recent releases landed on September 13, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Flow Rate Conversion | RIM Scanner |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/flow-rate-conversion/id525300855/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 10 months** |
| Monetization | Paid | — |
| Size | 1 MB | 74 MB |
| Requires iOS | **13** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Plankton Tickets PTY Ltd](https://appshunter.io/developer/866011508) |

## What reviewers say

### Flow Rate Conversion

[App page](https://appshunter.io/ios/app/flow-rate-conversion/id525300855)

Easily convert between various units of flow rate, including volume-based, mass-based, and mole-based measurements. Essential for physics and engineering applications involving fluid dynamics and hydrometry.

**Highlights:** Volume flow rate conversion, Mass flow rate conversion, Mole-based flow rate conversion, Physics and engineering utility, Fluid dynamics calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### RIM Scanner

[App page](https://appshunter.io/ios/app/rim-scanner/id1596267034)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flow Rate Conversion free?

Flow Rate Conversion costs $2.99, with no in-app purchases.

### Is RIM Scanner free?

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

### Do Flow Rate Conversion or RIM Scanner have ads?

Neither Flow Rate Conversion nor RIM Scanner shows ads.

### Which is updated more often, Flow Rate Conversion or RIM Scanner?

Flow Rate Conversion ships an update every 29 months, and RIM Scanner every 10 months. Most recently, Flow Rate Conversion was updated on September 13, 2026 and RIM Scanner on May 16, 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.*