# WavelyDx vs Kendamil Study

The clearest difference is in-app purchases: Kendamil Study at none against WavelyDx's 9. Kendamil Study also leads on ads (none vs shown). WavelyDx's advantage is update cadence (every 3 weeks vs every 2 months) and chart position (#189 vs unranked). On price, device support and iOS requirement there is nothing between them.

Both are free to download. WavelyDx sells 9 in-app purchases, starting at $5.99 per month. Kendamil Study asks for nothing beyond the download.

WavelyDx ships an update every 3 weeks, Kendamil Study every 2 months. The most recent releases landed on August 16, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | WavelyDx | Kendamil Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (13 ratings)](https://appshunter.io/ios/app/wavelydx/id6448490271/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#189** | — |
| Size | 211 MB | 40 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Wavely Diagnostics, Inc.](https://appshunter.io/developer/1537876519) | [Obvio Health USA Inc.](https://appshunter.io/developer/1380794472) |

## What reviewers say

### WavelyDx

[App page](https://appshunter.io/ios/app/wavelydx/id6448490271)

**Currently charting:** #189 Top Grossing · Medical (US App Store)

This medical tool uses your smartphone and a special funnel to detect middle ear fluid, aiding parents and clinicians in identifying potential ear infections. It helps determine when to seek professional medical advice for children over 6 months old.

**Highlights:** Detects middle ear fluid, Acoustic reflectometry technology, Aids in identifying ear infections, For parents and clinicians, Supports children over 6 months

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MONTHLY | $5.99 | per month |
| 3 MONTH SUBSCRIPTION | $21.00 | per 3 months |
| SEASONAL EAR CHECK ACCESS | $27.00 | per 3 months |
| YEARLY EAR CHECK ACCESS | $60.00 | per year |
| One month trial FOR NEW USERS | $60.00 | per year |
| 1 YEAR SUBSCRIPTION | $60.00 | per year |
| ONE WEEK OF EAR CHECK ACCESS | $9.00 | one-time |
| ONE WEEK OF EAR CHECK ACCESS | $15.00 | one-time |
| LIFETIME PURCHASE | $99.00 | one-time |


### Kendamil Study

[App page](https://appshunter.io/ios/app/kendamil-study/id6468986902)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WavelyDx free?

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

### Is Kendamil Study free?

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

### Do WavelyDx or Kendamil Study have ads?

WavelyDx shows ads; Kendamil Study does not.

### Which is updated more often, WavelyDx or Kendamil Study?

WavelyDx ships an update every 3 weeks, and Kendamil Study every 2 months. Most recently, WavelyDx was updated on August 16, 2026 and Kendamil Study on September 17, 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.*