# Class 11 Biology Notes vs RightBell

The clearest difference is price: RightBell at Free against Class 11 Biology Notes's $0.99. RightBell also leads on ads (none vs shown) and update cadence (weekly vs every 44 months). Class 11 Biology Notes's advantage is iOS requirement (13.0 vs 15.0). On in-app purchases and device support there is nothing between them.

RightBell 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, RightBell weekly. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Class 11 Biology Notes | RightBell |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 44 months | **Weekly** |
| Size | 22 MB | 87 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ranjeet Kumar](https://appshunter.io/developer/1476822683) | [Dhaxo Limited](https://appshunter.io/developer/1726122419) |

## 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


### RightBell

[App page](https://appshunter.io/ios/app/rightbell/id6615071226)

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

**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 RightBell free?

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

### Do Class 11 Biology Notes or RightBell have ads?

Class 11 Biology Notes shows ads; RightBell does not.

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

Class 11 Biology Notes ships an update every 44 months, and RightBell weekly. Most recently, Class 11 Biology Notes was updated on October 18, 2026 and RightBell on October 7, 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.*