# LLume vs Isobar

The clearest difference is update cadence: LLume at every 8 days against Isobar's every 2 months. On price, ads, in-app purchases and monetization model there is nothing between them.

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

LLume ships an update every 8 days, Isobar every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | LLume | Isobar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/llume/id6446151703/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | Free | Free |
| Size | 82 MB | 73 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Organic Robotics Corporation](https://appshunter.io/developer/1539165726) | [Advanced Therapeutic Materials Ltd](https://appshunter.io/developer/1717644630) |

## What reviewers say

### LLume

[App page](https://appshunter.io/ios/app/llume/id6446151703)

This app allows athletes and coaches to record respiratory training sessions using a connected sensor. Users can monitor breathing performance, review detailed workout data, and track progress over time. Manage all training settings within a single, integrated platform.

**Highlights:** Capture respiratory training sessions, Review workout data, Track progress over time, Monitor breathing performance, Manage training settings

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Isobar

[App page](https://appshunter.io/ios/app/isobar/id6477287729)

Design and order custom-fit compression socks from home. This app uses your phone's camera to create a 3D model of your legs for a perfect fit, helping to reduce DVT risk and alleviate travel-related leg discomfort.

**Highlights:** Custom compression sock ordering, 3D leg scanning via mobile video, Personalized fit and style selection, Direct-to-door delivery, DVT risk reduction, Alleviate heavy legs and jet lag

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is LLume free?

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

### Is Isobar free?

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

### Do LLume or Isobar have ads?

Neither LLume nor Isobar shows ads.

### Which is updated more often, LLume or Isobar?

LLume ships an update every 8 days, and Isobar every 2 months. Most recently, LLume was updated on November 3, 2026 and Isobar on November 4, 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.*