# Bitsby vs Physics Y11

The clearest difference is in-app purchases: Bitsby at none against Physics Y11's 1. Bitsby also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Physics Y11 sells 1 one-off in-app purchase. Bitsby asks for nothing beyond the download.

## The numbers

| Metric | Bitsby | Physics Y11 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | — |
| Size | 10 MB | 18 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Planetbeyond](https://appshunter.io/developer/1463932388) | [Chaleepa Mallawa](https://appshunter.io/developer/1359729160) |

## What reviewers say

### Bitsby

[App page](https://appshunter.io/ios/app/bitsby-gcse-cs-chatbot/id1491437242)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics Y11

[App page](https://appshunter.io/ios/app/physics-y11/id6758913358)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics Y11 Pro | $4.99 | one-time |


## Frequently asked questions

### Is Bitsby free?

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

### Is Physics Y11 free?

Physics Y11 is free to download, with in-app purchases available.

### Do Bitsby or Physics Y11 have ads?

Physics Y11 shows ads; Bitsby does not.

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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.*