# bubble for STARSHIP vs Shake! Weekly Challenges

The clearest difference is in-app purchases: Shake! Weekly Challenges at none against bubble for STARSHIP's 10. bubble for STARSHIP's advantage is update cadence (every 3 weeks vs every 5 months) and iOS requirement (13.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. bubble for STARSHIP sells 10 in-app purchases, starting at $4.49 per month. Shake! Weekly Challenges asks for nothing beyond the download.

bubble for STARSHIP ships an update every 3 weeks, Shake! Weekly Challenges every 5 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | bubble for STARSHIP | Shake! Weekly Challenges |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (21 ratings)](https://appshunter.io/ios/app/bubble-for-starship/id1667760766/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 77.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 61 MB | 35 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Dear U Co., Ltd.](https://appshunter.io/developer/1460356116) | [Phinix Tan](https://appshunter.io/developer/6774751875) |

## What reviewers say

### bubble for STARSHIP

[App page](https://appshunter.io/ios/app/bubble-for-starship/id1667760766)

Connect directly with your favorite idols through private messages and exclusive content. Engage in real-time chats, receive personalized updates, and celebrate special anniversaries with your chosen artists. Reply to their messages and build a unique connection.

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

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LEE KWANGSOO Ticket | $4.49 | per month |
| CRAVITY 1 Ticket | $4.49 | per month |
| IVE 1 Ticket | $4.49 | per month |
| MONSTA X 1 Ticket | $4.49 | per month |
| WJSN 1 Ticket | $4.49 | per month |
| LEE DONGWOOK Ticket | $4.49 | per month |
| CRAVITY 2 Tickets | $8.49 | per month |
| IVE 2 Tickets | $8.49 | per month |
| MONSTA X 2 Tickets | $8.49 | per month |
| IVE 3 Tickets | $12.49 | per month |


### Shake! Weekly Challenges

[App page](https://appshunter.io/ios/app/shake-weekly-challenges/id6774751873)

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

**In-app purchases:** none


## Frequently asked questions

### Is bubble for STARSHIP free?

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

### Is Shake! Weekly Challenges free?

Shake! Weekly Challenges is free to download, with no in-app purchases.

### Do bubble for STARSHIP or Shake! Weekly Challenges have ads?

Neither bubble for STARSHIP nor Shake! Weekly Challenges shows ads.

### Which is updated more often, bubble for STARSHIP or Shake! Weekly Challenges?

bubble for STARSHIP ships an update every 3 weeks, and Shake! Weekly Challenges every 5 months. Most recently, bubble for STARSHIP was updated on November 4, 2026 and Shake! Weekly Challenges on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*