# 选择困难症 vs CoStudy

The clearest difference is iOS requirement: 选择困难症 at 11.0 against CoStudy's 13.0. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. 选择困难症 sells 1 one-off in-app purchase and CoStudy sells 13 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for 选择困难症 against 4.8 for CoStudy. Both are backed by a comparable volume of ratings — 30 and 72 respectively. Written reviews are what separate them: 100% of 选择困难症's written reviews are positive against 93% of CoStudy's.

选择困难症 ships an update fortnightly, CoStudy every 3 weeks. The most recent releases landed on October 21, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 选择困难症 | CoStudy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (30 ratings)](https://appshunter.io/ios/app/id1298035396/reviews) | **[4.8 (72 ratings)](https://appshunter.io/ios/app/costudy/id1617091849/reviews)** |
| Number of ratings | 30 | **72** |
| Positive reviews | **100.0% of reviews** | 92.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 384 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [益 李](https://appshunter.io/developer/507847900) | [Co-study Information Technology (Shanghai) Co., Ltd](https://appshunter.io/developer/1489845277) |

## What reviewers say

### 选择困难症

[App page](https://appshunter.io/ios/app/id1298035396)

This app helps you make decisions when you're stuck. It offers guidance for various dilemmas, from what to eat or drink to what to do or who should fetch your takeout. You can also create your own custom decision-making modules.

**Highlights:** Decision guidance for various dilemmas, What to eat/drink suggestions, What to do suggestions, Takeout fetcher assignment, Custom module creation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 去除广告 | $1.99 | one-time |


### CoStudy

[App page](https://appshunter.io/ios/app/costudy/id1617091849)

This app creates a virtual study environment to combat the loneliness of solo learning. It simulates a campus with different buildings and allows users to find study partners and friends to study with, fostering a sense of community and accountability.

**Highlights:** Virtual campus with different buildings, Find study partners based on goals/region, Study with friends as virtual desk mates, Strict focus mode with rules, Earn rewards for focused study sessions, Positive reinforcement for self-discipline

**Features:** Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Co岛会员-连续包月 | $3.99 | per month |
| 购买10个Co钻 | $0.99 | one-time |
| 购买60个Co钻 | $0.99 | one-time |
| Co岛会员-1个月 | $1.99 | one-time |
| 购买180个Co钻 | $2.99 | one-time |
| 购买300个Co钻 | $3.99 | one-time |
| 购买450个Co钻 | $5.99 | one-time |
| 购买680个Co钻 | $9.99 | one-time |
| 购买1280个Co钻 | $19.99 | one-time |
| Co岛会员-12个月 | $24.99 | one-time |
| Co岛会员-12个月 | $29.99 | one-time |
| 购买1980个Co钻 | $29.99 | one-time |
| 购买3280个Co钻 | $49.99 | one-time |

**What reviewers like**

- 🎮 Cute and visually appealing interface design
- 🎯 Effective focus and concentration enhancement
- 👥 Social learning features with friends and study groups
- 💰 Gamification through virtual currency and clothing rewards
- 🏫 Virtual study room with other users for motivation

**What reviewers complain about**

- 🌍 No English language support despite international user base
- 💸 Increasing monetization of previously free cosmetics
- 📱 Phone verification issues for international users
- 🔗 Inconsistent server connectivity for overseas users
- ⚠️ Occasional app crashes and technical glitches

**Reported bugs**

- App crashes and sudden crashes when opening
- Server connection errors for international users
- Phone verification codes not being sent to international numbers
- Study sessions interrupted by incoming call notifications
- Unable to change language settings despite English tag in app store

**Requested features**

- English language version for international users
- iOS whitelist integration with Screen Time
- Widget functionality for daily/monthly check-in tracking
- Voice chat feature in study rooms
- More affordable cosmetic options purchasable with earned currency


## Frequently asked questions

### Is 选择困难症 free?

选择困难症 is free to download, with in-app purchases available.

### Is CoStudy free?

CoStudy is free to download, with in-app purchases available.

### Which has better reviews, 选择困难症 or CoStudy?

CoStudy is rated higher. 选择困难症 averages 4.8 out of 5 from 30 ratings, while CoStudy averages 4.8 from 72 ratings.

### Do 选择困难症 or CoStudy have ads?

Both 选择困难症 and CoStudy show ads.

### Which is updated more often, 选择困难症 or CoStudy?

选择困难症 ships an update fortnightly, and CoStudy every 3 weeks. Most recently, 选择困难症 was updated on October 21, 2026 and CoStudy on October 27, 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.*