# Lief App vs moonbird (legacy)

The clearest difference is rating: Lief App at 4.0 against moonbird (legacy)'s 3.4. moonbird (legacy)'s advantage is monetization model (free vs paid) and review sentiment (69% vs 45%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lief App holds the better App Store score, 4.0 against 3.4. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews complicate that: 45% of Lief App's written reviews are positive against 69% of moonbird (legacy)'s, so the app with the better star average is not the one people write more warmly about.

Lief App ships an update every 5 weeks, moonbird (legacy) every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Lief App | moonbird (legacy) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/lief-app/id1289075477/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/moonbird-legacy/id1521695230/reviews) |
| Number of ratings | 2 | **5** |
| Positive reviews | 44.7% of reviews | **69.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Paid | **Free** |
| Size | 80 MB | 46 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BrainBot, Inc.](https://appshunter.io/developer/558159738) | [Moonbird](https://appshunter.io/developer/1496625489) |

## 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


### moonbird (legacy)

[App page](https://appshunter.io/ios/app/moonbird-legacy/id1521695230)

This app offers a guided exercise designed to provide immediate stress relief. Consistent daily use can lead to long-lasting effects, with a recommendation of twice daily for at least four weeks.

**Highlights:** Stress relief exercise, Immediate relief, Long-lasting effects, Daily practice, Guided sessions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lief App free?

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

### Is moonbird (legacy) free?

moonbird (legacy) is free to download, with no in-app purchases.

### Which has better reviews, Lief App or moonbird (legacy)?

Lief App is rated higher. Lief App averages 4.0 out of 5 from 2 ratings, while moonbird (legacy) averages 3.4 from 5 ratings.

### Do Lief App or moonbird (legacy) have ads?

Neither Lief App nor moonbird (legacy) shows ads.

### Which is updated more often, Lief App or moonbird (legacy)?

Lief App ships an update every 5 weeks, and moonbird (legacy) every 6 weeks. Most recently, Lief App was updated on November 3, 2026 and moonbird (legacy) on November 3, 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.*