# Halo vs Algometer App

The clearest difference is update cadence: Algometer App at every 3 days against Halo's every 2 months. Halo's advantage is iOS requirement (15.0 vs 18.4). On price, ads, 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 ships an update every 2 months, Algometer App every 3 days. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Halo | Algometer App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/halo-brain-stimulation/id6748301539/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 176 MB | 2 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Flow Neuroscience AB](https://appshunter.io/developer/1149864190) | [Beytullah Ylmaz](https://appshunter.io/developer/1827679412) |

## What reviewers say

### 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


### Algometer App

[App page](https://appshunter.io/ios/app/algometer-app/id6748854163)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Halo free?

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

### Is Algometer App free?

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

### Do Halo or Algometer App have ads?

Neither Halo nor Algometer App shows ads.

### Which is updated more often, Halo or Algometer App?

Halo ships an update every 2 months, and Algometer App every 3 days. Most recently, Halo was updated on October 1, 2026 and Algometer App on October 14, 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.*