# 柠檬记账 vs CoStudy

The clearest difference is ads: 柠檬记账 at none against CoStudy's shown. 柠檬记账 also leads on monetization model (free vs free with in-app purchases). CoStudy's advantage is ratings volume (72 vs 11) and iOS requirement (13.0 vs 15.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. 柠檬记账 sells 8 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 — 4.9 for 柠檬记账 against 4.8 for CoStudy. That said, the two scores are not equally well evidenced: CoStudy has 72 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 88% of 柠檬记账'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 31, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 柠檬记账 | CoStudy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/id1614624894/reviews)** | [4.8 (72 ratings)](https://appshunter.io/ios/app/costudy/id1617091849/reviews) |
| Number of ratings | 11 | **72** |
| Positive reviews | 88.2% of reviews | **92.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 238 MB | 384 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Ningmengyoumeng Science & Technology Co., Ltd](https://appshunter.io/developer/1452864063) | [Co-study Information Technology (Shanghai) Co., Ltd](https://appshunter.io/developer/1489845277) |

## What reviewers say

### 柠檬记账

[App page](https://appshunter.io/ios/app/id1614624894)

A cute and simple personal finance manager that helps you easily track your income and expenses. It offers various statistics and analysis features to assist with your financial management.

**Highlights:** Ad-free interface, Multiple ledgers and accounts, Shared accounting for groups, AA and multi-currency support, Savings plans, Advanced search and statistics, Customizable themes

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 柠檬叶12元 | $1.99 | one-time |
| 柠檬叶18元 | $2.99 | one-time |
| 记账礼盒-25元 | $3.99 | one-time |
| 记账礼盒-30 | $3.99 | one-time |
| 记账礼盒-38 | $4.99 | one-time |
| 记账礼盒-39.8 | $5.99 | one-time |
| 记账礼盒-38.8 | $5.99 | one-time |
| 记账礼盒-39 | $5.99 | 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 柠檬记账 free?

柠檬记账 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, 柠檬记账 or CoStudy?

柠檬记账 is rated higher. 柠檬记账 averages 4.9 out of 5 from 11 ratings, while CoStudy averages 4.8 from 72 ratings.

### Do 柠檬记账 or CoStudy have ads?

CoStudy shows ads; 柠檬记账 does not.

### Which is updated more often, 柠檬记账 or CoStudy?

柠檬记账 ships an update every 3 weeks, and CoStudy every 3 weeks. Most recently, 柠檬记账 was updated on October 31, 2026 and CoStudy on October 30, 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.*