# 达目标 vs CoStudy

The clearest difference is ads: 达目标 at none against CoStudy's shown. 达目标 also leads on iOS requirement (10.0 vs 13.0). CoStudy's advantage is review sentiment (93% vs 81%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. 达目标 sells 3 one-off in-app purchases 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 达目标 against 4.8 for CoStudy. Both are backed by a comparable volume of ratings — 179 and 71 respectively. Written reviews are what separate them: 81% of 达目标's written reviews are positive against 93% of CoStudy's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 达目标 | CoStudy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (179 ratings)](https://appshunter.io/ios/app/todo/id1235379622/reviews) | **[4.8 (71 ratings)](https://appshunter.io/ios/app/costudy/id1617091849/reviews)** |
| Number of ratings | **179** | 71 |
| Positive reviews | 80.8% of reviews | **92.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 243 MB | 384 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shanghai Yoobingo Information Technology Co. Ltd.](https://appshunter.io/developer/1235379621) | [Co-study Information Technology (Shanghai) Co., Ltd](https://appshunter.io/developer/1489845277) |

## What reviewers say

### 达目标

[App page](https://appshunter.io/ios/app/todo/id1235379622)

This app helps you develop good habits and improve self-control through goal management. Set public or private goals, track your progress with daily check-ins, and invite friends or supervisors to keep you accountable. It's designed to support your journey towards achieving personal aspirations.

**Highlights:** Goal initiation and privacy settings, Daily sign-in and progress tracking, Invite supervisors for accountability, Observe and encourage others' goals, Support for various lifestyle goals

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一个月会员 | $1.99 | one-time |
| 三个月会员 | $4.99 | one-time |
| 十二个月会员 | $14.99 | one-time |

**What reviewers like**

- 👍 Very useful app
- 👍 Helps achieve goals
- 👍 Good for learning
- 👍 Free to use
- 👍 Good customer service

**What reviewers complain about**

- 👎 Poor UI design
- 👎 Not user-friendly
- 👎 Slow response times
- 👎 Requires payment for features
- 👎 Frequent network errors

**Reported bugs**

- Some pages not scrollable
- Cannot see options on last page of goal setting
- Shared images are cut off
- Frequent network errors
- Cannot log in after depositing money

**Requested features**

- Add public account feature
- Improve scrolling on some pages
- Allow WeChat Pay for goal initiation
- Add timezone adjustment
- Improve UI aesthetics


### 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 达目标 free?

达目标 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, 达目标 or CoStudy?

CoStudy is rated higher. 达目标 averages 4.8 out of 5 from 179 ratings, while CoStudy averages 4.8 from 71 ratings.

### Do 达目标 or CoStudy have ads?

CoStudy shows ads; 达目标 does not.

### Which is updated more often, 达目标 or CoStudy?

达目标 ships an update every 3 weeks, and CoStudy every 3 weeks. Most recently, 达目标 was updated on October 15, 2026 and CoStudy on October 14, 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.*