# Cohera vs DreamKnock

The clearest difference is price: DreamKnock at Free against Cohera's $0.99. DreamKnock also leads on update cadence (every 4 days vs every 4 months). Cohera's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 17.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

DreamKnock is free to download; Cohera costs $0.99 up front. DreamKnock sells 1 in-app purchase, starting at $2.99 per month. Cohera asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Cohera against 5.0 for DreamKnock. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Cohera ships an update every 4 months, DreamKnock every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cohera | DreamKnock |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/cohera/id6753698828/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/dreamknock/id6788598907/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Paid | **Freemium** |
| Size | 2 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Quack Quack Labs](https://appshunter.io/developer/1809440203) | [俊杰 沈](https://appshunter.io/developer/6788593617) |

## What reviewers say

### Cohera

[App page](https://appshunter.io/ios/app/cohera/id6753698828)

This app uses real-time haptic feedback from your Apple Watch to guide your heart rate toward a state of coherence. It helps you synchronize your body and mind for improved focus, calm, or recovery without visual or audio distractions.

**Highlights:** Real-time heart rate feedback, Dynamic haptic pacing, Performance and recovery modes, Session insights and tracking, Customizable session durations, Simple, gesture-driven interface

**Features:** Apple Watch app

**In-app purchases:** none


### DreamKnock

[App page](https://appshunter.io/ios/app/dreamknock/id6788598907)

This app uses your Apple Watch to help you achieve lucid dreams. It monitors your sleep patterns and gently cues you during REM sleep, allowing you to become aware you are dreaming. Features include a dream journal, progress tracking, and personalized training methods.

**Highlights:** Lucid dream training with Apple Watch, DreamSense™ sleep pattern analysis, Gentle haptic REM sleep cues, Wake Back to Bed (WBTB) timing, Dream journal with dictation, Sleep analysis and trend reporting

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DreamKnock Pro (Monthly) | $2.99 | per month |


## Frequently asked questions

### Is Cohera free?

Cohera costs $0.99, with no in-app purchases.

### Is DreamKnock free?

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

### Which has better reviews, Cohera or DreamKnock?

Cohera and DreamKnock are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Cohera or DreamKnock have ads?

Neither Cohera nor DreamKnock shows ads.

### Which is updated more often, Cohera or DreamKnock?

Cohera ships an update every 4 months, and DreamKnock every 4 days. Most recently, Cohera was updated on October 30, 2026 and DreamKnock on October 31, 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.*