Comparison

HRV Resonant Coherence vs KAF App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HRV Resonant Coherence

This app offers guided coherent breathing exercises to help you manage stress and improve focus. It provides visual, audio, and haptic feedback with customizable options for a personalized experience. Enjoy offline usability and a distraction-free interface.

Highlights
  • Guided coherent breathing
  • Visual, audio & haptic guidance
  • Customization options
  • Distraction-free design
  • Offline usability
Features
Read full description

Pace brings guided coherent breathing exercises to your phone, helping you regulate your nervous system, reduce stress, and improve focus in just a few minutes per day. # Features • Guided Coherent Breathing • Visual, audio & haptic guidance • Many customization options • Simple, distraction-free design • Offline usability # Pricing Pace is premium and ad-free. A subscription is required to use the app. We offer a 7-day free trial so you can test all features. • Annual Plan - $9.99 / year • Monthly Plan - $1.99 / month • Lifetime Plan - $24.99 once Prices shown are for US customers and may vary by region. Payment charged to Apple Account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage subscriptions in Account Settings. Terms of Use: https://www.stadelbauer.dev/terms-of-use Privacy Policy: https://www.stadelbauer.dev/privacy-policy

About

KAF App

Features
Read full description

In a modern, relaxed atmosphere, with innovative equipment for diagnostics and therapy, we offer you the most effective treatment tailored to your individual needs, so that you can enjoy your life with confidence and optimal health.

Screenshots

HRV Resonant Coherence4 screens
KAF App4 screens

Verdict

The call

The clearest difference is in-app purchases: KAF App at none against HRV Resonant Coherence's 3. KAF App also leads on iOS requirement (13.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HRV Resonant Coherence sells 3 in-app purchases, starting at $1.99 per month. KAF App asks for nothing beyond the download.

UpkeepUpdate frequency

HRV Resonant Coherence ships an update every 5 weeks, KAF App monthly. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
HRV Resonant Coherence versus KAF App: the parameters behind the verdict, then further details
ParameterHRV Resonant CoherenceKAF App
PriceFreeFree
Rating4.9 (11 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.013.0 — better
Further details — not scored
Size156 MB40 MB
Age rating4+17+
DeveloperChristoph StadelbauerGenevieve Ama Kyeremaa Finjap

In-app purchases

3 purchases

HRV Resonant Coherence

Subscriptions2
  • Pace Premium7 Days trial$1.991 Month
  • Pace Premium7 Days trial$9.991 Year
One-time1
  • Pace Premium Lifetime$24.99
None

KAF App

No in-app purchases

Questions

Is HRV Resonant Coherence free?
HRV Resonant Coherence is free to download, with in-app purchases available.
Is KAF App free?
KAF App is free to download, with no in-app purchases.
Do HRV Resonant Coherence or KAF App have ads?
Neither HRV Resonant Coherence nor KAF App shows ads.
Which is updated more often, HRV Resonant Coherence or KAF App?
HRV Resonant Coherence ships an update every 5 weeks, and KAF App monthly. Most recently, HRV Resonant Coherence was updated on October 1, 2026 and KAF App on October 12, 2026.

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