# 구루미 캠스터디 vs bubble for ACTORS

The clearest difference is rating: bubble for ACTORS at 4.0 against 구루미 캠스터디's 1.0. bubble for ACTORS also leads on review sentiment (52% vs 18%) and ratings volume (4 vs 1). 구루미 캠스터디's advantage is in-app purchases (none vs 37). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. bubble for ACTORS sells 33 in-app purchases, starting at $0.69 per month. 구루미 캠스터디 asks for nothing beyond the download.

bubble for ACTORS holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 18% of 구루미 캠스터디's written reviews are positive against 52% of bubble for ACTORS's.

구루미 캠스터디 ships an update every 5 weeks, bubble for ACTORS every 3 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 구루미 캠스터디 | bubble for ACTORS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/id1126701514/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/bubble-for-actors/id1630269885/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 18.5% of reviews | **51.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 61 MB |
| Requires iOS | 14.3 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [gooroomee Co., Ltd](https://appshunter.io/developer/1126701513) | [Dear U Co., Ltd.](https://appshunter.io/developer/1460356116) |

## What reviewers say

### 구루미 캠스터디

[App page](https://appshunter.io/ios/app/id1126701514)

This app provides a free, focused study environment for up to four users simultaneously. Easily join or create study groups using your smartphone or PC camera. Track your study time with a built-in stopwatch to improve your habits and make learning more engaging.

**Highlights:** Free 4-person video study rooms, Easy participation via smartphone or PC camera, Study time recording with stopwatch, Improved focus and engagement, Public and private study group options

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

**In-app purchases:** none


### bubble for ACTORS

[App page](https://appshunter.io/ios/app/bubble-for-actors/id1630269885)

Connect with your favorite idols through private messages and exclusive content. Receive everyday stories, dedicated videos, and even participate in live chats. Reply to their messages and celebrate anniversaries together.

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

**Features:** Vision Pro support

**In-app purchases (33)**

| Purchase | Price | Billing |
| --- | --- | --- |
| bubble FONT HYERI | $0.69 | per month |
| SHIN YE EUN Ticket | $3.99 | per month |
| Kim Kangmin Ticket | $3.99 | per month |
| Jeong TaekHyeon Ticket | $3.99 | per month |
| JUNG CHAE YEON Ticket | $3.99 | per month |
| LEE SANG YI Ticket | $3.99 | per month |
| AHN HEE YEON Ticket | $3.99 | per month |
| Lee Joo Young Ticket | $3.99 | per month |
| BAE HYEON SEONG Ticket | $3.99 | per month |
| LEE SEUNG GYU Ticket | $3.99 | per month |
| SEOYEAJI Ticket | $3.99 | per month |
| Lee HyunWook Ticket | $3.99 | per month |
| SONG DONGGEON Ticket | $3.99 | per month |
| Ko Kyoung Pyo Ticket | $3.99 | per month |
| Lee Jong Hyuk Ticket | $3.99 | per month |
| YEON WOO Ticket | $3.99 | per month |
| PARK KANG HYUN Ticket | $4.49 | per month |
| Kim Jaewon Ticket | $4.49 | per month |
| NANA Ticket | $4.49 | per month |
| Ahn Bohyun Ticket | $4.49 | per month |
| Danny Ahn Ticket | $4.49 | per month |
| Jang Gyu ri Ticket | $4.49 | per month |
| KIM MIN KYU Ticket | $4.49 | per month |
| MOON SANG MIN Ticket | $4.49 | per month |
| HYERI Ticket | $4.49 | per month |
| CHUNG SUBIN Ticket | $4.49 | per month |
| LEE JUNHO Ticket | $4.49 | per month |
| JEON SOMIN Ticket | $4.49 | per month |
| SEO HYUN Ticket | $4.49 | per month |
| LEE SAE ROM Ticket | $4.49 | per month |
| LEE LU DA Ticket | $4.49 | per month |
| SONG GEON HEE Ticket | $4.49 | per month |
| 100 Coin | $0.99 | one-time |


## Frequently asked questions

### Is 구루미 캠스터디 free?

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

### Is bubble for ACTORS free?

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

### Which has better reviews, 구루미 캠스터디 or bubble for ACTORS?

bubble for ACTORS is rated higher. 구루미 캠스터디 averages 1.0 out of 5 from 1 ratings, while bubble for ACTORS averages 4.0 from 4 ratings.

### Do 구루미 캠스터디 or bubble for ACTORS have ads?

Neither 구루미 캠스터디 nor bubble for ACTORS shows ads.

### Which is updated more often, 구루미 캠스터디 or bubble for ACTORS?

구루미 캠스터디 ships an update every 5 weeks, and bubble for ACTORS every 3 weeks. Most recently, 구루미 캠스터디 was updated on October 29, 2026 and bubble for ACTORS on October 30, 2026.

---

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