# HydroAssist vs CNS+

The clearest difference is rating: CNS+ at 5.0 against HydroAssist's 4.1. CNS+ also leads on review sentiment (100% vs 65%) and iOS requirement (13.0 vs 15.1). HydroAssist's advantage is update cadence (every 2 months vs every 4 months) and ratings volume (27 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CNS+ holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: HydroAssist has 27 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 65% of HydroAssist's written reviews are positive against 100% of CNS+'s.

HydroAssist ships an update every 2 months, CNS+ every 4 months. The most recent releases landed on October 3, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | HydroAssist | CNS+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (27 ratings)](https://appshunter.io/ios/app/hydroassist/id990362117/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cns-plus/id1580882992/reviews)** |
| Number of ratings | **27** | 4 |
| Positive reviews | 64.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 37 MB | 116 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Hydrocephalus Association](https://appshunter.io/developer/990362116) | [Congress of Neurological Surgeons](https://appshunter.io/developer/551149057) |

## What reviewers say

### HydroAssist

[App page](https://appshunter.io/ios/app/hydroassist/id990362117)

This app allows individuals with hydrocephalus to securely store and access their complete medical treatment history, including surgeries, shunt settings, and symptom diaries. It also facilitates sharing this information with medical professionals and loved ones.

**Highlights:** Track surgeries and shunt settings, Log symptom history, Store imaging scans (MRI/CT), Manage important contacts, Export and share medical summaries, Find local physicians, Authorize loved ones for access

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

**In-app purchases:** none


### CNS+

[App page](https://appshunter.io/ios/app/cns-plus/id1580882992)

Access a comprehensive collection of neurological surgery educational resources, including guidelines, publications, and courses. Manage your professional development with features like 'My Education' and 'My CME'.

**Highlights:** CNS Guidelines access, CNS Publications access, My Education & My CME integration, Case of the Month, Neurosurgery Watch, Podcasts, Courses & Webinars

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HydroAssist free?

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

### Is CNS+ free?

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

### Which has better reviews, HydroAssist or CNS+?

CNS+ is rated higher. HydroAssist averages 4.1 out of 5 from 27 ratings, while CNS+ averages 5.0 from 4 ratings.

### Do HydroAssist or CNS+ have ads?

Neither HydroAssist nor CNS+ shows ads.

### Which is updated more often, HydroAssist or CNS+?

HydroAssist ships an update every 2 months, and CNS+ every 4 months. Most recently, HydroAssist was updated on October 3, 2026 and CNS+ on September 22, 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.*