# ehive Studies vs CVD Study

The clearest difference is update cadence: ehive Studies at monthly against CVD Study's every 15 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ehive Studies ships an update monthly, CVD Study every 15 months. The most recent releases landed on September 9, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | ehive Studies | CVD Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/ehive-studies/id1536952138/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 15 months |
| Monetization | Free | — |
| Size | 38 MB | 116 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Icahn School of Medicine at Mount Sinai](https://appshunter.io/developer/972625667) | [Regents of the University of Minnesota](https://appshunter.io/developer/455216626) |

## What reviewers say

### ehive Studies

[App page](https://appshunter.io/ios/app/ehive-studies/id1536952138)

Participate in digital health studies to help researchers understand disease causes. Activities include watching videos, answering questions, and syncing wearable device data. All studies are approved by a human subjects protection program.

**Highlights:** Participate in digital health studies, Watch study-related videos, Answer daily health questions, Connect wearable devices, Sync activity and heart data, Contribute to disease research

**Features:** Vision Pro support

**In-app purchases:** none


### CVD Study

[App page](https://appshunter.io/ios/app/cvd-study/id1611914770)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ehive Studies free?

ehive Studies is free to download, with no in-app purchases.

### Is CVD Study free?

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

### Do ehive Studies or CVD Study have ads?

Neither ehive Studies nor CVD Study shows ads.

### Which is updated more often, ehive Studies or CVD Study?

ehive Studies ships an update monthly, and CVD Study every 15 months. Most recently, ehive Studies was updated on September 9, 2026 and CVD Study on September 23, 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.*