# SOLTEC vs NeuroVIZR

The clearest difference is rating: NeuroVIZR at 4.8 against SOLTEC's 3.9. NeuroVIZR also leads on ads (none vs shown) and review sentiment (67% vs 50%). SOLTEC's advantage is in-app purchases (none vs 6). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. NeuroVIZR sells 6 in-app purchases, starting at $8.89 per month. SOLTEC asks for nothing beyond the download.

NeuroVIZR holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: NeuroVIZR has 123 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 50% of SOLTEC's written reviews are positive against 67% of NeuroVIZR's.

SOLTEC ships an update every 2 weeks, NeuroVIZR weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SOLTEC | NeuroVIZR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (8 ratings)](https://appshunter.io/ios/app/soltecz/id1508060664/reviews) | **[4.8 (123 ratings)](https://appshunter.io/ios/app/neurovizr/id1553597738/reviews)** |
| Number of ratings | 8 | **123** |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | **Ad-supported** | Subscription |
| Size | 38 MB | 118 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Round River Research Corporation](https://appshunter.io/developer/1508060663) | [Vizr Technology OÜ](https://appshunter.io/developer/1896332195) |

## What reviewers say

### SOLTEC

[App page](https://appshunter.io/ios/app/soltecz/id1508060664)

This app analyzes your sleep cycles to help you regain Delta sleep and improve overall sleep quality. It also offers relaxation sessions for stress relief during the day. Track your progress and observe improvements with system use.

**Highlights:** Sleep cycle analysis, Delta sleep improvement, Z•TRACK™ Analyst, Relaxation sessions, Stress relief, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### NeuroVIZR

[App page](https://appshunter.io/ios/app/neurovizr/id1553597738)

This app uses light and sound experiences with a companion device to enhance cognitive abilities and promote neuroplasticity. It offers various sessions designed for better sleep, brain exercise, and improved mind states, providing a novel approach to brain engagement.

**Highlights:** Light and sound experiences, Companion to NeuroVIZR device, Brain engagement approach, Sessions for sleep, brain gym, mind states, Circadian cycle regulation, Pre-intellectual knowledge gain

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $8.89 | per month |
| Premium Plus Monthly | $14.90 | per month |
| Orion Monthly | $19.00 | per month |
| Premium Yearly | $85.00 | per year |
| Orion Bundle Annual | $99.99 | per year |
| Premium Plus Yearly | $142.99 | per year |


## Frequently asked questions

### Is SOLTEC free?

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

### Is NeuroVIZR free?

NeuroVIZR is free to download, with in-app purchases available.

### Which has better reviews, SOLTEC or NeuroVIZR?

NeuroVIZR is rated higher. SOLTEC averages 3.9 out of 5 from 8 ratings, while NeuroVIZR averages 4.8 from 123 ratings.

### Do SOLTEC or NeuroVIZR have ads?

SOLTEC shows ads; NeuroVIZR does not.

### Which is updated more often, SOLTEC or NeuroVIZR?

SOLTEC ships an update every 2 weeks, and NeuroVIZR weekly. Most recently, SOLTEC was updated on October 24, 2026 and NeuroVIZR on October 28, 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.*