# Study Scavenger vs CenExel Mobile App

The clearest difference is rating: CenExel Mobile App at 5.0 against Study Scavenger's 1.8. CenExel Mobile App also leads on update cadence (every 3 weeks vs every 6 weeks). Study Scavenger's advantage is iOS requirement (9.0 vs 15.1). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

CenExel Mobile App holds the better App Store score, 5.0 against 1.8. Both are backed by a comparable volume of ratings — 11 and 4 respectively.

Study Scavenger ships an update every 6 weeks, CenExel Mobile App every 3 weeks. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Study Scavenger | CenExel Mobile App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (11 ratings)](https://appshunter.io/ios/app/study-scavenger/id623837822/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cenexel-mobile-app/id6740370118/reviews)** |
| Number of ratings | **11** | 4 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 3 MB | 41 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [StudyScavenger](https://appshunter.io/developer/537927736) | [CenExel Clinical Research, Inc.](https://appshunter.io/developer/1789666371) |

## What reviewers say

### Study Scavenger

[App page](https://appshunter.io/ios/app/study-scavenger/id623837822)

Discover clinical research studies you may qualify for. Filter by location and personal health details like age and existing conditions. Find opportunities to participate in medical research.

**Highlights:** Find clinical research studies, Filter by location, Filter by personal health information, Qualify for studies, Research participation

**In-app purchases:** none


### CenExel Mobile App

[App page](https://appshunter.io/ios/app/cenexel-mobile-app/id6740370118)

Discover and apply for clinical research studies based on your location. Filter studies by zip code, inquire about pricing, age and gender restrictions, and other relevant criteria.

**Highlights:** Find local clinical studies, Filter by zip code, Request study information, View pricing details, Check age and gender restrictions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Study Scavenger free?

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

### Is CenExel Mobile App free?

CenExel Mobile App is free to download, with no in-app purchases.

### Which has better reviews, Study Scavenger or CenExel Mobile App?

CenExel Mobile App is rated higher. Study Scavenger averages 1.8 out of 5 from 11 ratings, while CenExel Mobile App averages 5.0 from 4 ratings.

### Do Study Scavenger or CenExel Mobile App have ads?

Neither Study Scavenger nor CenExel Mobile App shows ads.

### Which is updated more often, Study Scavenger or CenExel Mobile App?

Study Scavenger ships an update every 6 weeks, and CenExel Mobile App every 3 weeks. Most recently, Study Scavenger was updated on October 23, 2026 and CenExel Mobile App on October 21, 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.*