# FLEX vs BISEITAI

The clearest difference is iOS requirement: BISEITAI at 9.0 against FLEX's 12.0. On price, ads, in-app purchases and device support 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 | FLEX | BISEITAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | — |
| Size | 19 MB | 44 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TAKATOSHI MATSUZAKI](https://appshunter.io/developer/1626458617) | [BISEITAI](https://appshunter.io/developer/1681517987) |

## What reviewers say

### FLEX

[App page](https://appshunter.io/ios/app/flex/id1626458405)

**In-app purchases:** none


### BISEITAI

[App page](https://appshunter.io/ios/app/biseitai/id6447492931)

**In-app purchases:** none


## Frequently asked questions

### Is FLEX free?

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

### Is BISEITAI free?

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

### Do FLEX or BISEITAI have ads?

Neither FLEX nor BISEITAI shows ads.

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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.*