CogState vs Rave eConsent
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CogState
This academically oriented software offers researchers a powerful and sensitive method for testing cognition. It utilizes culture-neutral stimuli to detect cognitive changes in subjects over time, with validity demonstrated in numerous peer-reviewed articles.
- Academically oriented cognitive testing
- Sensitive detection of cognitive change
- Culture-neutral stimuli
- Validated in peer-reviewed articles
- Baseline and periodic retesting
Read full descriptionHide full description
NOTE: THIS SOFTWARE REQUIRES A LICENCE KEY FROM COGSTATE CogState Research is an academically oriented version of the CogState ClinicalTrials software. With the same proven rapidity, sensitivity and validity, this software provides academic researchers with a powerful method of testing cognition at a competitive price. It has been used by institutions such as Yale University, the University of Melbourne and the Australian Government's National Health & Medical Research Council. CogState tests use simple but effective technology to detect cognitive change in subjects. The tests begin by taking a baseline measurement from a subject who is then periodically retested in order to detect cognitive change. CogState testing utilizes culture-neutral stimuli, which ensures that a wide range of subjects can be tested regardless of their ethnicity, socio-economic background or education. CogState tests are extremely sensitive and their validity has been demonstrated in over 100 peer-reviewed articles.
Rave eConsent
This application facilitates clinical trial participation by providing patients with interactive tools to understand research details and risks. It captures electronic signatures for informed consent and helps streamline site operations by tracking consents remotely and reducing audit risks.
- Interactive patient education tools
- Electronic signature capture
- Remote consent tracking
- Secure communication and identity verification
- Consent amendment management
Read full descriptionHide full description
Medidata Patient Cloud Rave eConsent is our innovative, patient-friendly electronic informed consent and patient enrollment system for clinical trials. Potential participants gain full disclosure of the nature of the research and their involvement by viewing interactive tools and animations that better explain the risks and benefits of the trial. The app tracks metrics for adequate comprehension on the part of the participant and captures their voluntary choice to join the study with electronic signatures. Sites can streamline patient visits, track consents remotely, reduce on-site monitoring, and reduce the risk of findings from regulatory audits by using Rave eConsent’s unique technology for secure communications and identity verification. Sponsors benefit from a consistent consent review across all sites ensuring all required signatures are secured, manage consent amendments while reducing site and monitoring costs.
Verdict
The clearest difference is ratings volume: Rave eConsent at 6 against CogState's 1. CogState's advantage is iOS requirement (9.0 vs 15.0). On price, rating, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for CogState against 5.0 for Rave eConsent. That said, the two scores are not equally well evidenced: Rave eConsent has 6 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.
| Parameter | CogState | Rave eConsent |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (6 ratings) |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPad |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 225 MB | 14 MB |
| Age rating | 17+ | 12+ |
| Developer | CogState Inc | Medidata Solutions Worldwide |
Customer experience
CogState
Rave eConsent
In-app purchases
CogState
No in-app purchases
Rave eConsent
No in-app purchases







