# DDK: Diadochokinetic Assess — Easily Assess DDK

> Timer utility for assessing diadochokinetic rate and related patient metrics. (iPhone/iPad app by Collin Dunphy.)

- Source: https://appshunter.io/ios/app/ddk-diadochokinetic-assess/id1489873060 (this page in markdown: same URL + `.md`)
- Developer: [Collin Dunphy](https://appshunter.io/developer/1470842805)
- Category: Medical, Utilities
- Price: Free with in-app purchases
- Rating: 4.94/5 from 35 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 4 MB
- Languages: English
- Released: 2020-01-04
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/ddk-diadochokinetic-assess/id1489873060/reviews.md

## What is DDK?

A timer utility application that assists in assessment of a patient’s diadochokinetic rate and more. Count “Puh-tuh-kuh,” swallows, and estimate heart rate. Recent assessments can be reviewed and pinned in the “History” page.

Are you a professional, student, or patient? We love hearing about how you use DDK. Please reach out and tell us how you use the app.

Ballygorey Labs does not collect nor store any PHI and PII that may be generated while using the app.

## Key features

- Diadochokinetic rate assessment timer
- Swallow count and heart rate estimation
- Assessment history review
- Pinning of recent assessments
- Privacy-focused data handling

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Donut | $0.99 | one-time |
| Smoothie | $2.99 | one-time |
| Lunch | $9.99 | one-time |


## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/ddk-diadochokinetic-assess/id1489873060/reviews.md

### 4/5 — SLP

*2021-10-13*

In the count mode, it would be awesome if you could select the number of reps you wanted and the stop watch would freeze when you reached that number.

### 5/5 — SO FUN!!

*2020-09-16*

It’s so fun tapping the screen when I’m bored :))

### 5/5 — Finally!

*2020-03-26*

What a relief to have a reliable way to count DDKs! This app is simple, well designed, and works perfectly.

### 5/5 — Simple, functional DDK tool

*2020-01-07*

For speech-language pathologists who like simple tools that make assessments easier, this app allows you to count DDKs easily!  I love that there is a timed function as well as a function that starts the timer when you start tapping. You could add the normative ranges for a small improvement in function on the go, if any changes were to be made! Thank you for this app!

### 5/5 — Very helpful for consistency in objective data!

*2020-01-06*

This app makes counting DDK rate so much easier! The timer starts and stops on its own. You just need to tap each time a /p t k/ is complete. You can change the length the timer goes for (seconds) and keep data based on date time stamp. The app is very simple which is great to bringing it up quickly during a session! Thank you so much to the creator(s)!

## Frequently asked questions about DDK

### What is DDK used for?

DDK is a timer utility application designed to assist in the assessment of a patient's diadochokinetic rate. It helps professionals and students measure tasks like counting "Puh-tuh-kuh," swallows, and estimating heart rate.

### Can I review past assessments with DDK?

Yes, recent assessments can be reviewed and pinned in the "History" page within DDK. This allows for easy access and comparison of past patient data.

### Does DDK collect patient health information?

No, Ballygorey Labs states that DDK does not collect nor store any PHI and PII that may be generated while using the app. User privacy is a priority.

### What devices does DDK support?

DDK is available for iPhone, iPad, and iPod devices. It is designed to be accessible across various Apple mobile platforms.

### How often is DDK updated?

The latest version of DDK is 2.0.1, and it was last updated on September 30, 2025. This indicates a recent focus on maintenance and potential improvements.

### What is the age rating for DDK?

DDK has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger students and professionals.

### What is the user sentiment for DDK?

DDK has received a high rating of 4.9 stars from 35 ratings, indicating strong positive user sentiment. Users appear to find the app highly effective for its intended purpose.

### Is DDK free to use?

Yes, DDK is available for free download. However, it does offer in-app purchases, which may provide additional features or functionality.

## Version history (last 5 releases)

### 2.0.1 — 2025-09-30

Bug fixes and performance improvements. Updated for iOS/iPadOS 26.

### 2.0.0 — 2022-07-27

Does 4AM count as morning or night?.. Either way, I've had many 4AM smoothies ..
- NEW: Assessment Selection Menu
- NEW: Set a Rep Goal in “Count” Mode
- NEW: Pin & Edit Assessment Records
- And MORE!

### 1.2.0 — 2020-10-19

- Dedicated iPadOS app
- New customization features to make it easier to assess a patient on demand
- New Simplified UI Design 
- Bug Fixes

### 1.1.2 — 2020-09-23

- Thanks to the feedback from the community, the Count screen now displays the time to the nearest decimal place
- Bug Fixes

Please feel free to submit feedback/ideas to support@ballygoreyapps.com!

### 1.1.1 — 2020-03-25

- Update for compliance with iOS 13.4
- Bug Fixes

## Apps similar to DDK

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Voice Analyst: Pitch & Volume](https://appshunter.io/ios/app/voice-analyst-pitch-and-volume/id732245213) | 4.6 (351) | $17.99 | Medical |
| [IDDSI](https://appshunter.io/ios/app/iddsi/id1145593063) | 1.6 (14) | Free | Medical |
| [Speech Sounds Visualized](https://appshunter.io/ios/app/speech-sounds-visualized/id1300151606) | 4.4 (124) | Free | Medical |
| [Constant Therapy Clinician](https://appshunter.io/ios/app/constant-therapy-clinician/id1472010034) | 4.8 (465) | Free | Medical |
| [Spaced Retrieval Therapy](https://appshunter.io/ios/app/spaced-retrieval-therapy/id498787795) | 4.6 (31) | $9.99 | Medical |
| [Conversation Therapy Lite](https://appshunter.io/ios/app/conversation-therapy-lite/id636843583) | 4.7 (56) | Free | Medical |

## More apps by Collin Dunphy

- [CVHS Wildcats](https://appshunter.io/ios/app/cvhs-wildcats/id1478655832)

All apps by Collin Dunphy: https://appshunter.io/developer/1470842805

## Related topics

[collin dunphy](https://appshunter.io/ios/topics/collin-dunphy) · [slp](https://appshunter.io/ios/topics/slp)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*