# BT vs Olay Yeri

The clearest difference is device support: BT at 3 against Olay Yeri's —. Olay Yeri's advantage is iOS requirement (13.0 vs 15.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | BT | Olay Yeri |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 10 days | — |
| Monetization | Paid | — |
| Size | 60 MB | 26 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 12+ | 17+ |
| Developer | [Oleksandr Zheliezniak](https://appshunter.io/developer/1570664017) | [Furkan Yurtsever](https://appshunter.io/developer/1582355049) |

## What reviewers say

### BT

[App page](https://appshunter.io/ios/app/bt-2-simulator/id1615566654)

Experience a flight simulator where you can destroy enemy vehicles and defend territory. Learn about the Bayraktar TB2's features and track your accomplishments in destroying targets. A portion of proceeds from this app goes to supporting Ukraine.

**Highlights:** Flight simulation gameplay, Destroy enemy vehicles, Learn about Bayraktar TB2, Track destroyed vehicles, Support Ukraine

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

**In-app purchases:** none


### Olay Yeri

[App page](https://appshunter.io/ios/app/olay-yeri/id6757423906)

**In-app purchases:** none


## Frequently asked questions

### Is BT free?

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

### Is Olay Yeri free?

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

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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.*