Table 1:
Description of Included Apps
| App Name | Brief App Store Description | Cost | App Store Star Rating |
Mean MARS |
Strategies for Creating Health Literate Apps |
IMS Institute for Healthcare Informatics Functionality |
PEMAT Actionability % |
PEMAT Understandability% |
CDC Clear Communication Index % |
Flesch-Kincaid Reading Level |
|---|---|---|---|---|---|---|---|---|---|---|
| Acid Reflux Diet Helper | Diet and food choice helper tool for Acid Reflux, GERD, and heartburn symptoms | Free | 4.5 | 3.4 | 21 | 4 | 85 | 66.67 | 65.8 | 11.9 |
| Astound - Voice &Speech Coach | Coaching app with personalized warmups, breathing and vocal exercises | Free | 4.4 | 4.5 | 29 | 7 | 100 | 75 | 85.3 | 6.9 |
| Breather Coach | Respiratory Muscle Training companion app | Free | 1.9 | 4.4 | 28 | 7 | 95 | 87.5 | 85.3 | 8.9 |
| Christella VoiceUp | Voice feminization course | Free | 4.3 | 4.0 | 28 | 6 | 100 | 100 | 91.2 | 9.8 |
| Cough Tracker & Reporting | Tool for tracking and graphically representing the frequency and triggers of cough | Free | na | 3.8 | 25 | 4 | 100 | 87.5 | 76.5 | 6.5 |
| Dysphagia Training | Exercises aimed at improving functions related to eating and drinking | Free | 4 | 4.3 | 30 | 5 | 86.36 | 100 | 78.9 | 9.6 |
| Emotion Food Company | Educational materials on meal prepration using Easy-Base®, a binding agent for people with dysphagia | Free | N/A | 3.5 | 27 | 2 | 72.73 | 50 | 88.2 | 10.3 |
| Estill Exercises | Voice training and rehabilitation exercises | Free | 3.9 | 4.1 | 28 | 5 | 100 | 100 | 97.1 | 13.5 |
| EvaF | Voice feminization training program | Free | 2.4 | 3.9 | 28 | 4 | 100 | 100 | 97.4 | 10.5 |
| EvaM | Voice masculinization training program | Free | 1.5 | 3.8 | 28 | 4 | 100 | 100 | 97.4 | 12.3 |
| GERD, Heartburn and Acid Reflux Symptoms & Remedies | Educational tool for GERD symptoms, diagnosis, and management | Free | 1 | 3.8 | 25 | 1 | 100 | 100 | 67.6 | 10.5 |
| GERDHelp | Personalized digital health diary for GERD Health | Free | 4.8 | 4.4 | 30 | 8 | 100 | 100 | 78.9 | 13.1 |
| GERD Tools | Digital diary of reflux symptoms | $4.99 | 1 | 2.7 | 24 | 3 | 77.27 | 62.5 | 64.7 | 6.9 |
| Heartburn: Acid reflux Journal | Symptom and trigger tracker for GERD and reflux | Free | 3.5 | 2.8 | 15 | 4 | 80 | 50 | 50 | 14.8 |
| HNC Virtual Coach | Customized therapy regimen for improving swallowing in patients undergoing head and neck cancer treatment | Free | 5 | 4.8 | 30 | 9 | 100 | 100 | 97.1 | 11.1 |
| Hyfe Cough Tracker | AI-based tool for tracking cough frequency and trends | Free | 4.5 | 3.4 | 19 | 7 | 95 | 87.5 | 41.2 | 6.7 |
| Loud and Clear Voice Fitness | Voice and communication program for people with Parkinson’s Disease | Free | 3.7 | 3.9 | 29 | 5 | 100 | 100 | 70.0 | 12.2 |
| LSVT Loud | Education and voice training exercises for patients with Parkinson’s disease and other neurological conditions including stroke, multiple sclerosis and cerebral palsy | Free | 2 | 3.2 | 27 | 1 | 72.73 | 83.33 | 64.7 | 12.9 |
| Mobili-T | Swallowing exrcise tool using the Mobili-T device (under-the-chin sensor) | Free | N/A | 4.1 | 26 | 8 | 80 | 100 | 64.7 | 11.7 |
| Pryde Voice &Speech Therapy | Voice modification training program | Free | 5 | 3.9 | 28 | 2 | 90.91 | 100 | 80 | 9.6 |
| Reflux Tracker | Diary for recording symptoms, medications, and eating habits related to reflux and heartburn | Free | 1.7 | 3.5 | 27 | 6 | 95.45 | 100 | 76.5 | 9.8 |
| SpeechVive | Simulates the effect of the SpeechVive, a wearable prosthetic device that improves speech loudness for people with Parkinson’s Disease | Free | 5 | 3.2 | 17 | 3 | 95 | 100 | 57.1 | 14.9 |
| Swallow Prompt: Saliva Control | Notification tool to prompt people with neurological conditions of salivary pooling | $2.99 | 5 | 4.1 | 20 | 3 | 66.67 | 66.67 | 41.2 | 10.4 |
| Swallow RehApp | Customizable plan of dysphagia management through education and exercises | $3.99 | 3 | 3.1 | 27 | 3 | 83.33 | 100 | 73.5 | 13.5 |
| Tongueometer | Tongue strength assessment and exercises with the use of an external Tongueometer device | Free | 5 | 3.5 | 21 | 7 | 45.45 | 33.33 | 52.9 | 12.3 |
| TRACHTOOLS | Communication and tracheostomy information tool | Free | 4.7 | 3.8 | 25 | 1 | 95.83 | 100 | 77.3 | 15.3 |
| Vocular | Voice analysis, including a pitch tracker and celebrity voice matching | $3.99 | 4.5 | 3.7 | 25 | 7 | 68.18 | 50 | 75 | 9.7 |
| Voice Coach | Voice exercises aimed at professional actors and public speakers | Free | 3.4 | 4.1 | 29 | 3 | 95.45 | 100 | 97.1 | 9.8 |
If an application was available in both the Apple and Google stores, it was evaluated and recorded (for characteristics such as price, ratings, and name) from the Apple store. Acid Reflux Diet Helper was the only application not available in the Apple store, so it was assessed from the Google Play store. Total score for rating scales varied: MARS mean total score out of 5; Strategies for Creating Health Literate Apps total out of 33; IMS Institute for Healthcare Informatics Functionality total out of 11; PEMAT Actionability – out of 100%; PEMAT Understandability – out of 100%; Flesch-Kincaid Reading Level corresponds to grade level of app store description.