# Data Collection vs Clinical Tree

The clearest difference is price: Clinical Tree at Free against Data Collection's $0.99. Clinical Tree also leads on rating (5.0 vs 3.1) and review sentiment (80% vs 61%). Data Collection's advantage is in-app purchases (none vs 10). On ratings volume, update cadence, ads and device support there is nothing between them.

Clinical Tree is free to download; Data Collection costs $0.99 up front. Clinical Tree sells 10 one-off in-app purchases. Data Collection asks for nothing beyond the download.

Clinical Tree holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 10 and 7 respectively. Written reviews point the same way: 61% of Data Collection's written reviews are positive against 80% of Clinical Tree's.

Data Collection ships an update every 2 months, Clinical Tree monthly. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Data Collection | Clinical Tree |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.1 (10 ratings)](https://appshunter.io/ios/app/data-collection/id479348835/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/clinical-tree/id6444689971/reviews)** |
| Number of ratings | **10** | 7 |
| Positive reviews | 60.9% of reviews | **80.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 83 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Chris Wozny](https://appshunter.io/developer/479348838) | [Duc Nguyen](https://appshunter.io/developer/1698359793) |

## What reviewers say

### Data Collection

[App page](https://appshunter.io/ios/app/data-collection/id479348835)

This app allows researchers to capture accelerometer, gyroscope, and magnetometer data directly from their iOS devices. It time stamps the captured data and includes Apple's enhanced device motion for research or experimentation.

**Highlights:** Capture accelerometer data, Capture gyroscope data, Capture magnetometer data, Time-stamped data, Includes enhanced device motion data

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

**In-app purchases:** none


### Clinical Tree

[App page](https://appshunter.io/ios/app/clinical-tree/id6444689971)

Access a vast medical knowledge base with quick answers to health questions. Explore detailed information on symptoms, diseases, and treatments across numerous clinical specialties. Stay updated with daily new content and specialized databases.

**Highlights:** Instant medical answer search, Information on symptoms and treatments, Daily updated articles and videos, Over 1,000,000 specialized databases, Covers numerous clinical specialties, Aids students and teachers

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Single 9 package | $8.99 | one-time |
| Single 15 package | $14.99 | one-time |
| 6 month package | $19.99 | one-time |
| Single 19 package | $19.99 | one-time |
| Single 25 package | $24.99 | one-time |
| 1 year package | $29.99 | one-time |
| Tzu N package | $29.99 | one-time |
| Tne N package | $39.99 | one-time |
| Nne N package | $99.99 | one-time |
| Lifetime package | $99.99 | one-time |


## Frequently asked questions

### Is Data Collection free?

Data Collection costs $0.99, with no in-app purchases.

### Is Clinical Tree free?

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

### Which has better reviews, Data Collection or Clinical Tree?

Clinical Tree is rated higher. Data Collection averages 3.1 out of 5 from 10 ratings, while Clinical Tree averages 5.0 from 7 ratings.

### Do Data Collection or Clinical Tree have ads?

Neither Data Collection nor Clinical Tree shows ads.

### Which is updated more often, Data Collection or Clinical Tree?

Data Collection ships an update every 2 months, and Clinical Tree monthly. Most recently, Data Collection was updated on September 17, 2026 and Clinical Tree on September 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*