# Jetty vs Quell

The clearest difference is update cadence: Quell at daily against Jetty's weekly. On price, ads, in-app purchases 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 and Quell sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Jetty ships an update weekly, Quell daily. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Jetty | Quell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (16 ratings)](https://appshunter.io/ios/app/jetty-chronic-illness/id6745104954/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 132 MB | 58 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Jetty Health, Inc.](https://appshunter.io/developer/1810763833) | [Oleksandr Pavlov](https://appshunter.io/developer/6775249707) |

## What reviewers say

### 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 |


### Quell

[App page](https://appshunter.io/ios/app/quell-deep-focus/id6775249705)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quell Unlock | $9.99 | one-time |


## Frequently asked questions

### Is Jetty free?

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

### Is Quell free?

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

### Do Jetty or Quell have ads?

Neither Jetty nor Quell shows ads.

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

Jetty ships an update weekly, and Quell daily. Most recently, Jetty was updated on November 8, 2026 and Quell on November 5, 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.*