# upperstrop vs chamcharmbio(ccbio)

The clearest difference is update cadence: upperstrop at every 3 months against chamcharmbio(ccbio)'s every 15 months. upperstrop also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

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

upperstrop ships an update every 3 months, chamcharmbio(ccbio) every 15 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | upperstrop | chamcharmbio(ccbio) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | **Every 3 months** | Every 15 months |
| Size | 76 MB | 71 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [JAY BUDDY Co.,Ltd.](https://appshunter.io/developer/1446842616) | [Chamcharm Bio Co.,Ltd](https://appshunter.io/developer/1802143005) |

## What reviewers say

### upperstrop

[App page](https://appshunter.io/ios/app/upperstrop/id6480500297)

**In-app purchases:** none


### chamcharmbio(ccbio)

[App page](https://appshunter.io/ios/app/chamcharmbioccbio/id6743309958)

**In-app purchases:** none


## Frequently asked questions

### Is upperstrop free?

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

### Is chamcharmbio(ccbio) free?

chamcharmbio(ccbio) is free to download, with no in-app purchases.

### Which is updated more often, upperstrop or chamcharmbio(ccbio)?

upperstrop ships an update every 3 months, and chamcharmbio(ccbio) every 15 months. Most recently, upperstrop was updated on October 8, 2026 and chamcharmbio(ccbio) on October 2, 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.*