Appworthy
App Store
Version 1.0.2 · 2026-02-19
Added Box Breathing — a new 4-second in, hold, out, hold technique used by Navy SEALs for focus and stress relief — plus a live countdown and always-on phase guidance across all breathing exercises.
Store ratingNo rating
PriceFreeListed price
Age4+Store age rating
Size22 MBiPhone download
CategoryHealth & Fitness
DeveloperOndrej Kvasnovsky
What we found
Full reportToo little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Money
- Free to download.
Not yet tested.
The store currently lists version 1.0.2, updated 2026-02-19.
Preview
Store screenshots supplied by the developer.
About this app
Breathe app offers guided sessions for both HRV breathing and the 4-7-8 technique, accompanied by calming sounds to deepen your relaxation experience.
What is HRV breathing?
HRV, or Heart Rate Variability, is a critical indicator of overall well-being, sleep quality, and body recovery. It measures the variations in time between each heartbeat, reflecting autonomic nervous system flexibility and health. Optimal HRV during sleep signifies efficient physiological restoration, while low HRV may indicate disturbances in sleep patterns or insufficient recovery.
HRV breathing, also known as 'coherent breathing' or 'resonance breathing', involves taking slow, deep breaths at a rate of around six breaths per minute. This practice stimulates the parasympathetic nervous system, promoting relaxation, conserving energy, and supporting bodily recovery processes.…
From the developer’s store description.
For developers and the curious
The full report
The evidence, sources, measurements and versions behind every label above.
Findings and evidence
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.
What reviewers report
No review analysis published for this app.
Measurements
“Not assessed” means we could not measure it. It is never a zero and never a pass.
From store data and reviews
Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
Not assessed
No rating histogram has been captured for this app
In the app package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Versions and dates analysed
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Store update history
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Assessment record
- Status
- Not yet tested
- App identifier
breathe-for-better-hrv- Sources used
- None recorded
- Reviews read
- None recorded
- Package examined
- No package scan
- Human inspection
- Not completed
How we know
- Measurement vocabulary
- 1.4
Store facts
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
App Store
- Store rating
- Not supplied
- Version
- 1.0.2
- Updated
- 19 Feb 2026
- Price
- Free
- Age rating
- 4+
- Size
- 22 MB
- Developer
- Ondrej Kvasnovsky
- Category
- Health & Fitness
- Listing price
- Free
No itemized purchase list is available for this listing.
Method and limits
What a missing label means
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Limits of this report
- A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
- Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
- Not assessed is a state. It is never a zero and never a pass.
- A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.
Request a correction
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