# LeOS vs Jetty

The clearest difference is review sentiment: Jetty at 88% against LeOS's 19%. Jetty also leads on rating (4.9 vs 1.0) and update cadence (weekly vs every 2 months). LeOS's advantage is in-app purchases (none vs 6) and iOS requirement (7.0 vs 18.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Jetty sells 6 in-app purchases, starting at $2.00 per month. LeOS asks for nothing beyond the download.

Jetty holds the better App Store score, 4.9 against 1.0. Both are backed by a comparable volume of ratings — 10 and 16 respectively. Written reviews point the same way: 19% of LeOS's written reviews are positive against 88% of Jetty's.

LeOS ships an update every 2 months, Jetty weekly. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | LeOS | Jetty |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (10 ratings)](https://appshunter.io/ios/app/leos/id995941451/reviews) | **[4.9 (16 ratings)](https://appshunter.io/ios/app/jetty-chronic-illness/id6745104954/reviews)** |
| Number of ratings | 10 | **16** |
| Positive reviews | 18.8% of reviews | **87.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 16 MB | 132 MB |
| Requires iOS | **7.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Guangzhou houyi trading co., Ltd.](https://appshunter.io/developer/995941450) | [Jetty Health, Inc.](https://appshunter.io/developer/1810763833) |

## What reviewers say

### LeOS

[App page](https://appshunter.io/ios/app/leos/id995941451)

Control vibrating strength and speed for various modes including music, voice, and dancing. Offers customized, vibrating, and drawing modes for a unique experience.

**Highlights:** Music control, Voice control, Video control, Customized mode, Vibrating mode, Dancing mode, Drawing mode

**Features:** macOS Compatibility

**In-app purchases:** none


### Jetty

[App page](https://appshunter.io/ios/app/jetty-chronic-illness/id6745104954)

This AI health companion helps you understand chronic symptoms by listening to or reading your daily experiences. It automatically identifies patterns and provides clear health insights to share with your doctor. The core tools are free and designed for simple, private use.

**Highlights:** AI-powered symptom analysis, Voice and text input, Automatic pattern detection, Health tracking, Doctor-friendly reports, Private and secure data

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contribution (Monthly) | $2.00 | per month |
| Contribution (Monthly) | $5.00 | per month |
| Contribution (Monthly) | $10.00 | per month |
| Contribution (Monthly) | $15.00 | per month |
| Contribution (Monthly) | $20.00 | per month |
| Contribution (Monthly) | $30.00 | per month |


## Frequently asked questions

### Is LeOS free?

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

### Is Jetty free?

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

### Which has better reviews, LeOS or Jetty?

Jetty is rated higher. LeOS averages 1.0 out of 5 from 10 ratings, while Jetty averages 4.9 from 16 ratings.

### Do LeOS or Jetty have ads?

Neither LeOS nor Jetty shows ads.

### Which is updated more often, LeOS or Jetty?

LeOS ships an update every 2 months, and Jetty weekly. Most recently, LeOS was updated on November 1, 2026 and Jetty on November 8, 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.*