# NK Dimensions AR vs NurseBrain® Synapse

The clearest difference is rating: NK Dimensions AR at 5.0 against NurseBrain® Synapse's 4.1. NK Dimensions AR also leads on in-app purchases (none vs 3) and iOS requirement (9.0 vs 17.6). NurseBrain® Synapse's advantage is ratings volume (31 vs 3). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. NurseBrain® Synapse sells 3 in-app purchases, starting at $29.99 per month. NK Dimensions AR asks for nothing beyond the download.

NK Dimensions AR holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: NurseBrain® Synapse has 31 ratings behind it against 3, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | NK Dimensions AR | NurseBrain® Synapse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nk-dimensions-ar/id1463051986/reviews)** | [4.1 (31 ratings)](https://appshunter.io/ios/app/nursebrain-synapse/id1528871626/reviews) |
| Number of ratings | 3 | **31** |
| Positive reviews | — | 85.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 212 MB | 157 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 17+ |
| Developer | [Nihon Kohden America, Inc.](https://appshunter.io/developer/1146663859) | [Nursebrain LLC](https://appshunter.io/developer/1528871628) |

## What reviewers say

### NK Dimensions AR

[App page](https://appshunter.io/ios/app/nk-dimensions-ar/id1463051986)

Learn proper electrode placement for 3 and 6 lead sets. This app also educates clinicians on identifying and understanding common cardiac arrhythmias. Requires physical posters to use.

**Highlights:** Electrode placement learning, 3 and 6 lead set guidance, Cardiac arrhythmia identification, Clinical education tool, Augmented reality visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### NurseBrain® Synapse

[App page](https://appshunter.io/ios/app/nursebrain-synapse/id1528871626)

This app digitizes nursing report sheets, allowing nurses to manage their entire shift from a single, connected platform. It helps organize patient information, tasks, and notes, facilitating confident handoffs and efficient documentation.

**Highlights:** Customizable digital brain sheets, Real-time shift tracking, Organized patient handoff views, Voice and quick entry documentation, Generate progress notes and care plans, Cross-device compatibility (phone, watch)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $29.99 | per month |
| Quarterly Student Access | $29.99 | per 3 months |
| Yearly Premium Access | $149.99 | per year |

**What reviewers like**

- 👍 Organizes patient info and shifts
- 👍 Improves time management
- 👍 Enhances patient care
- 👍 Minimizes charting time (AI suggestions)
- 👍 Centralized information reduces stress

**What reviewers complain about**

- 🐛 Cannot sign up/create account
- 🐛 Cannot log in after signing up
- 🐛 Annoying to not see app without paying
- 🐛 Expensive monthly/yearly fee
- 🐛 Glitches and doesn't load

**Reported bugs**

- App won't let users sign up and make an account
- Cannot log in after signing up
- App glitches and won't load
- Cannot edit active patient list
- Patient list duplicates entries

**Requested features**

- Include more specialties, specifically for outpatients
- Add a 'Return' button for new lines in text fields
- Ability to time medications
- 24-hour clock option


## Frequently asked questions

### Is NK Dimensions AR free?

NK Dimensions AR is free to download, with no in-app purchases.

### Is NurseBrain® Synapse free?

NurseBrain® Synapse is free to download, with in-app purchases available.

### Which has better reviews, NK Dimensions AR or NurseBrain® Synapse?

NK Dimensions AR is rated higher. NK Dimensions AR averages 5.0 out of 5 from 3 ratings, while NurseBrain® Synapse averages 4.1 from 31 ratings.

### Do NK Dimensions AR or NurseBrain® Synapse have ads?

Neither NK Dimensions AR nor NurseBrain® Synapse shows ads.

### Which is updated more often, NK Dimensions AR or NurseBrain® Synapse?

NK Dimensions AR ships an update weekly, and NurseBrain® Synapse weekly. Most recently, NK Dimensions AR was updated on October 21, 2026 and NurseBrain® Synapse 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.*