# CANTAB vs Vision Engage

The clearest difference is rating: Vision Engage at 4.8 against CANTAB's 2.5. Vision Engage also leads on ratings volume (6.8K vs 2) and update cadence (every 3 weeks vs every 3 months). CANTAB's advantage is monetization model (free vs ad-supported). 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.

Vision Engage holds the better App Store score, 4.8 against 2.5. That said, the two scores are not equally well evidenced: Vision Engage has 6.8K ratings behind it against 2, so its average is the more settled of the two.

CANTAB ships an update every 3 months, Vision Engage every 3 weeks. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CANTAB | Vision Engage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/cantab/id1547171492/reviews) | **[4.8 (6.8K ratings)](https://appshunter.io/ios/app/vision-engage/id6443581547/reviews)** |
| Number of ratings | 2 | **6.8K** |
| Positive reviews | — | 72.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 72 MB | 41 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Cambridge Cognition Limited](https://appshunter.io/developer/496596292) | [Velocity Clinical Research, Inc.](https://appshunter.io/developer/1647351158) |

## What reviewers say

### CANTAB

[App page](https://appshunter.io/ios/app/cantab/id1547171492)

This application is exclusively for registered study participants. It allows users to check in regularly to engage with research studies and monitor their personal progress.

**Highlights:** Study participation, Regular check-ins, Progress monitoring, Study updates

**In-app purchases:** none


### Vision Engage

[App page](https://appshunter.io/ios/app/vision-engage/id6443581547)

Participate in clinical studies with ease. Explore new opportunities, manage appointments, and receive payments directly through the app. Stay informed about research and communicate with your study site.

**Highlights:** Explore new study opportunities, Build and update participant profile, Receive faster payments, Manage appointments and get reminders, In-app communication with study site, Learn about clinical research

**In-app purchases:** none

**What reviewers like**

- 🤗 Friendly and caring staff
- 👍 Easy-to-use app
- 🚀 Smooth and efficient processes
- 💰 Fair compensation for participation

**What reviewers complain about**

- 🐛 Buggy app with technical issues
- 💤 Slow or delayed payments
- 📢 Excessive notification requests for reviews

**Reported bugs**

- App freezing or crashing
- Login and authentication problems
- Inconsistent or missing data input functionality

**Requested features**

- Ability to search for studies by condition
- Integration with navigation apps for study site locations
- Patient referral function


## Frequently asked questions

### Is CANTAB free?

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

### Is Vision Engage free?

Vision Engage is free to download, with no in-app purchases.

### Which has better reviews, CANTAB or Vision Engage?

Vision Engage is rated higher. CANTAB averages 2.5 out of 5 from 2 ratings, while Vision Engage averages 4.8 from 6.8K ratings.

### Do CANTAB or Vision Engage have ads?

Neither CANTAB nor Vision Engage shows ads.

### Which is updated more often, CANTAB or Vision Engage?

CANTAB ships an update every 3 months, and Vision Engage every 3 weeks. Most recently, CANTAB was updated on October 20, 2026 and Vision Engage on October 25, 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.*