RBH vs IDDSI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RBH
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.
- GRBAS voice assessment training
- Expert-rated sound samples
- Practice with visual analog scale
- Practice with RBH ordinal scale
- Learn voice disorder types
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Perceptual voice assessment training. Learn and practice a correct voice RBH(overall severity[hoarseness], roughness, breathiness) assessment as part of GRBAS. This app offers sound samples of different types of voice disorders and different RBH degrees. All samples are rated by experts. Learn how experts rate RBH and practice self - become a real expert. The app offers visual analog scale (0-100) and RBH ordinal (Europe) scale (0-1-2-3). Free download! In-App with full voice disorder sample database.
IDDSI
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.
- IDDSI framework access
- Food texture descriptors
- Drink thickness tests
- Easy lookup
- Applicable to all ages
- Supports all care settings
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Have the IDDSI framework at your fingertips - get access to the descriptors and look up the different IDDSI food texture and drink thickness tests easily either in the lab, office or at home. The IDDSI Framework is culturally sensitive, measurable and applicable to individuals of all age groups in all care settings, designed in an effort to help those with dysphagia.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | RBH | IDDSI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.6 (14 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 14 — better |
| Update frequency | Every 7 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 96 MB | 100 MB |
| Age rating | 4+ | 12+ |
| Developer | WEVOSYS medical technology GmbH | International Dysphagia Diet Standardisation Initiative Iddsi |
Customer experience
RBH
IDDSI
In-app purchases
RBH
- Full voice sample database (127 samples)$9.99
IDDSI
No in-app purchases








