# Lief App vs Optimal HRV

The clearest difference is in-app purchases: Lief App at none against Optimal HRV's 3. Lief App also leads on review sentiment (45% vs 17%). Optimal HRV's advantage is update cadence (fortnightly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Optimal HRV sells 3 in-app purchases, starting at $9.99 per month. Lief App asks for nothing beyond the download.

Lief App ships an update monthly, Optimal HRV fortnightly. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Lief App | Optimal HRV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (24 ratings)](https://appshunter.io/ios/app/optimal-hrv-biofeedback/id1501292206/reviews)** |
| Number of ratings | — | **24** |
| Positive reviews | **44.7% of reviews** | 16.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 80 MB | 52 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BrainBot, Inc.](https://appshunter.io/developer/558159738) | [Optimal, LLC](https://appshunter.io/developer/1501292205) |

## What reviewers say

### Lief App

[App page](https://appshunter.io/ios/app/lief-app/id1289075477)

This smart patch discreetly tracks heart rate and variability to help you manage stress. It offers drug-free biofeedback exercises to train your body's stress response, promoting mindfulness and control.

**Highlights:** HRV tracking, Heart rate monitoring, Biofeedback exercises, Stress response training, On-demand stress relief, Drug-free solution

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Effective stress management
- 💡 Improved anxiety levels
- 💡 Real-time biofeedback
- 💡 Helps regulate nervous system
- 💡 Teaches breathing techniques

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 App is buggy
- 🐛 App crashes frequently
- 🐛 Difficult to connect
- 🐛 Unreliable

**Reported bugs**

- Unable to download latest update
- App bricked after update
- Stuck on pulsing screen
- Won't connect on iPhone or Mac
- Self-pacing (buzzing) not working

**Requested features**

- Add button to turn off vibration
- Make subscription more affordable
- Sell device outright
- Provide clear instructions/manual
- Improve data breakdown and comparison


### Optimal HRV

[App page](https://appshunter.io/ios/app/optimal-hrv-biofeedback/id1501292206)

Monitor, analyze, and improve your Heart Rate Variability (HRV) scores. This app offers personalized training, biofeedback, and stress-reducing activities to enhance health, reduce stress, and improve mental clarity.

**Highlights:** Real-time HRV monitoring, Personalized training plans, Guided meditation and breathing exercises, Comprehensive data analysis, Stress response insights, Biofeedback optimization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month | $9.99 | per month |
| 6 Month | $47.99 | per 6 months |
| One Year | $59.99 | per year |


## Frequently asked questions

### Is Lief App free?

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

### Is Optimal HRV free?

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

### Do Lief App or Optimal HRV have ads?

Neither Lief App nor Optimal HRV shows ads.

### Which is updated more often, Lief App or Optimal HRV?

Lief App ships an update monthly, and Optimal HRV fortnightly. Most recently, Lief App was updated on September 20, 2026 and Optimal HRV on September 21, 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.*