# NeckCheck_v1 vs Solius

The clearest difference is price: Solius at Free against NeckCheck_v1's $1.99. Solius also leads on ratings volume (70 vs 3). NeckCheck_v1's advantage is iOS requirement (15.6 vs 17.0). On rating, update cadence, ads and in-app purchases there is nothing between them.

Solius is free to download; NeckCheck_v1 costs $1.99 up front. 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 NeckCheck_v1 against 5.0 for Solius. That said, the two scores are not equally well evidenced: Solius has 70 ratings behind it against 3, so its average is the more settled of the two.

NeckCheck_v1 ships an update fortnightly, Solius every 3 weeks. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | NeckCheck_v1 | Solius |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/neckcheck-v1/id6749608991/reviews) | [5.0 (70 ratings)](https://appshunter.io/ios/app/solius/id6762333424/reviews) |
| Number of ratings | 3 | **70** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Paid | **Free** |
| Size | 32 MB | 237 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Respond LLC](https://appshunter.io/developer/1831261357) | [Solius Labs, Inc.](https://appshunter.io/developer/1314011843) |

## What reviewers say

### NeckCheck_v1

[App page](https://appshunter.io/ios/app/neckcheck-v1/id6749608991)

This app helps you maintain good posture, especially when using screens. It provides customizable real-time feedback and reminders to prevent neck strain and improve sitting habits for users of all ages.

**Highlights:** Customizable vibration, visual, or message alerts, Child mode with password lock, Adjustable angle tolerance and real-time feedback, Customizable reminder and timeout timers, Save settings for consistent use

**Features:** macOS Compatibility

**In-app purchases:** none


### Solius

[App page](https://appshunter.io/ios/app/solius/id6762333424)

This app pairs with a UVB light therapy device to deliver personalized doses of UVB light based on your skin tone. It offers guided sessions, reminders, and progress tracking for year-round health benefits. The device is FDA-cleared and requires no prescription.

**Highlights:** Personalized UVB dosing based on skin tone, FDA-cleared over-the-counter device, Short weekly sessions (approx. 5 minutes), Guided session setup and safety checks, Weekly reminders and progress tracking, Therapy history and trends

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

**In-app purchases:** none


## Frequently asked questions

### Is NeckCheck_v1 free?

NeckCheck_v1 costs $1.99, with no in-app purchases.

### Is Solius free?

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

### Which has better reviews, NeckCheck_v1 or Solius?

NeckCheck_v1 and Solius are both rated 5.0 out of 5 on the App Store, from 3 and 70 ratings respectively.

### Do NeckCheck_v1 or Solius have ads?

Neither NeckCheck_v1 nor Solius shows ads.

### Which is updated more often, NeckCheck_v1 or Solius?

NeckCheck_v1 ships an update fortnightly, and Solius every 3 weeks. Most recently, NeckCheck_v1 was updated on October 16, 2026 and Solius on October 18, 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.*