# RBH vs IDDSI

The clearest difference is review sentiment: RBH at 100% against IDDSI's 0%. RBH also leads on update cadence (every 7 months vs every 21 months) and iOS requirement (6.0 vs 15.0). IDDSI's advantage is in-app purchases (none vs 1). On price, ads and device support there is nothing between them.

Both are free to download. RBH sells 1 one-off in-app purchase. IDDSI asks for nothing beyond the download.

RBH ships an update every 7 months, IDDSI every 21 months. The most recent releases landed on September 25, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | RBH | IDDSI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.6 (14 ratings)](https://appshunter.io/ios/app/iddsi/id1145593063/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 21 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 96 MB | 100 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [WEVOSYS medical technology GmbH](https://appshunter.io/developer/808286815) | [International Dysphagia Diet Standardisation Initiative Iddsi](https://appshunter.io/developer/1650465352) |

## What reviewers say

### RBH

[App page](https://appshunter.io/ios/app/rbh-learning-and-practice-grbas/id879154455)

This app provides training for perceptual voice assessment using the GRBAS scale. It features expert-rated sound samples of various voice disorders and degrees of hoarseness, roughness, and breathiness. Practice your assessment skills with visual analog and ordinal scales.

**Highlights:** GRBAS voice assessment training, Expert-rated sound samples, Practice with visual analog scale, Practice with RBH ordinal scale, Learn voice disorder types

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full voice sample database (127 samples) | $9.99 | one-time |


### IDDSI

[App page](https://appshunter.io/ios/app/iddsi/id1145593063)

Access the IDDSI framework for food texture and drink thickness testing. This tool provides easy lookup of descriptors and tests, suitable for all ages and care settings to assist individuals with dysphagia.

**Highlights:** IDDSI framework access, Food texture descriptors, Drink thickness tests, Easy lookup, Applicable to all ages, Supports all care settings

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

**In-app purchases:** none


## Frequently asked questions

### Is RBH free?

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

### Is IDDSI free?

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

### Do RBH or IDDSI have ads?

Neither RBH nor IDDSI shows ads.

### Which is updated more often, RBH or IDDSI?

RBH ships an update every 7 months, and IDDSI every 21 months. Most recently, RBH was updated on September 25, 2026 and IDDSI on September 29, 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.*