# BioSap vs bubble for GOLDMEDALIST

The clearest difference is in-app purchases: BioSap at none against bubble for GOLDMEDALIST's 9. bubble for GOLDMEDALIST's advantage is iOS requirement (13.0 vs 17.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. bubble for GOLDMEDALIST sells 9 in-app purchases, starting at $4.49 per month. BioSap asks for nothing beyond the download.

BioSap ships an update every 2 weeks, bubble for GOLDMEDALIST every 3 weeks. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | BioSap | bubble for GOLDMEDALIST |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (5 ratings)](https://appshunter.io/ios/app/bubble-for-goldmedalist/id6480480028/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 73.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 85 MB | 60 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Biosystems SA](https://appshunter.io/developer/1474620889) | [Dear U Co., Ltd.](https://appshunter.io/developer/1460356116) |

## What reviewers say

### BioSap

[App page](https://appshunter.io/ios/app/biosap/id1474620890)

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

**In-app purchases:** none


### bubble for GOLDMEDALIST

[App page](https://appshunter.io/ios/app/bubble-for-goldmedalist/id6480480028)

Connect with your favorite idols through private messages, exclusive content, and live video chats. Share your day, receive personalized messages, and build a special anniversary with your chosen artist. Reply to their messages and engage in conversations in your own language.

**Highlights:** Private messages from idols, Dedicated idol content, Live video chat with idols, Reply to idol messages, Anniversary tracking, In-app translation

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KIM SOO HYUN Ticket | $4.49 | per month |
| KIM SU GYEOM Ticket | $4.49 | per month |
| LEE CHAE MIN Ticket | $4.49 | per month |
| CHOI HYUN WOOK Ticket | $4.49 | per month |
| 100 Coins | $0.99 | one-time |
| 500 Coins | $4.99 | one-time |
| 1000 Coins | $9.99 | one-time |
| 3000 Coins | $27.99 | one-time |
| 5000 Coins | $45.99 | one-time |


## Frequently asked questions

### Is BioSap free?

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

### Is bubble for GOLDMEDALIST free?

bubble for GOLDMEDALIST is free to download, with in-app purchases available.

### Do BioSap or bubble for GOLDMEDALIST have ads?

Neither BioSap nor bubble for GOLDMEDALIST shows ads.

### Which is updated more often, BioSap or bubble for GOLDMEDALIST?

BioSap ships an update every 2 weeks, and bubble for GOLDMEDALIST every 3 weeks. Most recently, BioSap was updated on October 21, 2026 and bubble for GOLDMEDALIST on October 20, 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.*