# SOLTEC vs Halo

The clearest difference is rating: Halo at 5.0 against SOLTEC's 4.2. Halo also leads on ads (none vs shown) and monetization model (free vs ad-supported). SOLTEC's advantage is update cadence (every 2 weeks vs every 2 months) and ratings volume (6 vs 2). On price, review sentiment, 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.

Halo holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

SOLTEC ships an update every 2 weeks, Halo every 2 months. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | SOLTEC | Halo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (6 ratings)](https://appshunter.io/ios/app/soltecz/id1508060664/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/halo-brain-stimulation/id6748301539/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 38 MB | 176 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Round River Research Corporation](https://appshunter.io/developer/1508060663) | [Flow Neuroscience AB](https://appshunter.io/developer/1149864190) |

## 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


### Halo

[App page](https://appshunter.io/ios/app/halo-brain-stimulation/id6748301539)

This app uses a wearable device to deliver gentle electrical currents to the brain, aiming to improve mood, sleep, and focus. It guides users through sessions, tracks progress, and offers educational content for wellness goals.

**Highlights:** Transcranial direct current stimulation (tDCS), Mood improvement, Better sleep support, Enhanced focus, Usage tracking, Educational content

**In-app purchases:** none


## Frequently asked questions

### Is SOLTEC free?

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

### Is Halo free?

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

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

Halo is rated higher. SOLTEC averages 4.2 out of 5 from 6 ratings, while Halo averages 5.0 from 2 ratings.

### Do SOLTEC or Halo have ads?

SOLTEC shows ads; Halo does not.

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

SOLTEC ships an update every 2 weeks, and Halo every 2 months. Most recently, SOLTEC was updated on October 9, 2026 and Halo on October 1, 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.*