# Class 11 Biology Notes vs Jetty Study

The clearest difference is price: Jetty Study at Free against Class 11 Biology Notes's $0.99. Jetty Study also leads on update cadence (every 2 months vs every 44 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Jetty Study is free to download; Class 11 Biology Notes costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Class 11 Biology Notes ships an update every 44 months, Jetty Study every 2 months. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Class 11 Biology Notes | Jetty Study |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 44 months | **Every 2 months** |
| Size | 22 MB | 43 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ranjeet Kumar](https://appshunter.io/developer/1476822683) | [Gurjeet Singh](https://appshunter.io/developer/1555022419) |

## What reviewers say

### Class 11 Biology Notes

[App page](https://appshunter.io/ios/app/class-11-biology-notes/id6444937788)

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

**In-app purchases:** none


### Jetty Study

[App page](https://appshunter.io/ios/app/jetty-study/id6473020073)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Class 11 Biology Notes free?

Class 11 Biology Notes costs $0.99, with no in-app purchases.

### Is Jetty Study free?

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

### Do Class 11 Biology Notes or Jetty Study have ads?

Both Class 11 Biology Notes and Jetty Study show ads.

### Which is updated more often, Class 11 Biology Notes or Jetty Study?

Class 11 Biology Notes ships an update every 44 months, and Jetty Study every 2 months. Most recently, Class 11 Biology Notes was updated on October 2, 2026 and Jetty Study on September 25, 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.*