# Breathing Timer B vs Opti Metabolics

Breathing Timer B and Opti Metabolics are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Breathing Timer B ships an update every 9 days, Opti Metabolics every 10 days. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Breathing Timer B | Opti Metabolics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opti-metabolics/id6760432815/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 10 days |
| Monetization | — | Free |
| Size | 105 MB | 50 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Kraanen](https://appshunter.io/developer/1802149999) | [Opti Metabolics](https://appshunter.io/developer/1884448705) |

## What reviewers say

### Breathing Timer B

[App page](https://appshunter.io/ios/app/breathing-timer-b-mind/id6758588613)

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

**In-app purchases:** none


### Opti Metabolics

[App page](https://appshunter.io/ios/app/opti-metabolics/id6760432815)

This app helps you understand your health by viewing biomarker reports and tracking disease risk factors. Log daily health metrics and receive a personalized feed of information. It serves as an educational tool and is not FDA-regulated.

**Highlights:** View biomarker reports, Track disease risk factors, Log daily health metrics, Personalized health feed, Educational health insights

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

**In-app purchases:** none


## Frequently asked questions

### Is Breathing Timer B free?

Breathing Timer B is free to download, with no in-app purchases.

### Is Opti Metabolics free?

Opti Metabolics is free to download, with no in-app purchases.

### Do Breathing Timer B or Opti Metabolics have ads?

Neither Breathing Timer B nor Opti Metabolics shows ads.

### Which is updated more often, Breathing Timer B or Opti Metabolics?

Breathing Timer B ships an update every 9 days, and Opti Metabolics every 10 days. Most recently, Breathing Timer B was updated on October 16, 2026 and Opti Metabolics on October 10, 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.*