# Hertz-lite. Anxiety relief. — A simplified version of Hertz.

> Vagus nerve stimulation app for anxiety relief through guided breathing and gaze control. (iPhone/iPad app by CSDRED AB.)

- Source: https://appshunter.io/ios/app/hertz-lite-anxiety-relief/id1543873699 (this page in markdown: same URL + `.md`)
- Developer: [CSDRED AB](https://appshunter.io/developer/1529146957)
- Category: Health & Fitness, Medical
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 12+
- Requires: iOS 13.0 · 1 MB
- Languages: English
- Released: 2021-02-02
- Data updated: 2026-06-23
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hertz-lite-anxiety-relief/id1543873699/reviews.md

## What is Hertz?

Hertz-lite. is a free application that coaches you to stimulate your vagus nerve, reducing anxiety and putting you at ease. 

It combines a breathing exercise with a gaze control exercise. A red dot sweeps a dial of ticks. As the dot passes over blue ticks, you breath in, as it passes red ticks you breath out. The speed of the dot is linked to your breathing, giving you feedback on your vagus nerve activation. The gaze control exercise builds focus and concentration. 

Be aware that due to the screen-timeout limitations of the Apple Watch, you must occasionally nudge the Digital Crown to keep the screen alive! (To increase the screen display time, on your iPhone, in the Watch app, go to: My Watch (tab) > Display & Brightness > Wake Duration > On Tap "Wake for 70 Seconds". On the AW 6/7 you can set the screen to always on).

## Key features

- Guided breathing exercises
- Vagus nerve stimulation
- Gaze control for focus
- Anxiety reduction
- Relaxation techniques
- Breathing feedback


## Frequently asked questions about Hertz

### How does Hertz-lite help with anxiety?

Hertz-lite coaches you to stimulate your vagus nerve through a combination of breathing and gaze control exercises. This stimulation is designed to reduce anxiety and promote a sense of ease.

### What are the exercises in Hertz-lite?

The app features a breathing exercise where a red dot guides your inhales and exhales over colored ticks. It also includes a gaze control exercise to build focus and concentration.

### Does Hertz-lite have ads?

No, Hertz-lite does not contain advertisements. It is a completely ad-free application.

### What devices does Hertz-lite support?

Hertz-lite is supported on Apple Watch, iPhone, and iPod devices.

### What is the age rating for Hertz-lite?

Hertz-lite has an age rating of 12+, making it suitable for users aged 12 and older.

### How often is Hertz-lite updated?

The latest version, 1.3, was last updated on May 15, 2025. Updates are released to improve functionality and user experience.

### What is the user rating for Hertz-lite?

Hertz-lite has received an excellent rating of 5.0 stars from 1 rating, indicating high user satisfaction.

### Are there any special considerations for using Hertz-lite on Apple Watch?

Due to Apple Watch screen-timeout limitations, you may need to nudge the Digital Crown to keep the screen active. You can adjust 'Wake Duration' settings on your iPhone to increase screen display time.

## Version history (last 4 releases)

### 1.3 — 2025-05-15

- Minor fixes

### 1.2 — 2022-01-04

Fixed the time out screen so it lasts two minutes before timing out on older Apple Watches, and removed a bug that made the app reset after one rotation on newer Apple Watches.

### 1.1 — 2021-02-06

This version syncs with other instances of the app, so everyone can breath in and out in unison.

### 1.0 — 2020-12-10

No release notes.

## Apps similar to Hertz

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [The Way - Your Wu Wei Guide](https://appshunter.io/ios/app/the-way-your-wu-wei-guide/id6745130495) | 5.0 (22) | Free | Health & Fitness |
| [Breathe O'Clock](https://appshunter.io/ios/app/breathe-oclock/id6449086931) | 3.8 (10) | $0.49 | Health & Fitness |
| [Nervous System Reset: NEUROFIT](https://appshunter.io/ios/app/nervous-system-reset-neurofit/id1630278170) | 4.8 (683) | Free | Health & Fitness |
| [MonkeyBrain](https://appshunter.io/ios/app/monkeybrain/id6744603223) | — | Free | Health & Fitness |
| [CalmingVibration](https://appshunter.io/ios/app/calmingvibration/id6748665954) | 3.0 (2) | $1.99 | Health & Fitness |
| [Head On: Stress & Anxiety](https://appshunter.io/ios/app/head-on-stress-and-anxiety/id6444063799) | 4.7 (239) | Free | Health & Fitness |

## More apps by CSDRED AB

- [Hertz. - An anxiety treatment.](https://appshunter.io/ios/app/hertz-an-anxiety-treatment/id1529146685)

All apps by CSDRED AB: https://appshunter.io/developer/1529146957

## Related topics

[vagus vibe](https://appshunter.io/ios/topics/vagus-vibe)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-23.*