# Cuckoo Timer vs 柠檬自习室

The clearest difference is ads: Cuckoo Timer at none against 柠檬自习室's shown. Cuckoo Timer also leads on update cadence (every 4 days vs every 6 weeks) and ratings volume (319 vs 18). 柠檬自习室's advantage is review sentiment (95% vs 71%) and rating (4.9 vs 4.7). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Cuckoo Timer sells 1 one-off in-app purchase and 柠檬自习室 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

柠檬自习室 holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Cuckoo Timer has 319 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 71% of Cuckoo Timer's written reviews are positive against 95% of 柠檬自习室's.

Cuckoo Timer ships an update every 4 days, 柠檬自习室 every 6 weeks. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Cuckoo Timer | 柠檬自习室 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (319 ratings)](https://appshunter.io/ios/app/cuckoo-timer/id1212257572/reviews) | **[4.9 (18 ratings)](https://appshunter.io/ios/app/id1562565200/reviews)** |
| Number of ratings | **319** | 18 |
| Positive reviews | 71.1% of reviews | **94.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 54 MB | 171 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [俊航 何](https://appshunter.io/developer/1106886288) | [Chengdu Ningmengyoumeng Science & Technology Co., Ltd](https://appshunter.io/developer/1452864063) |

## What reviewers say

### Cuckoo Timer

[App page](https://appshunter.io/ios/app/cuckoo-timer/id1212257572)

This app helps you manage tasks and cultivate skills by tracking time spent on each activity. It links tasks to specific skills, allowing you to visualize your progress towards mastery and achieve your 10,000-hour goals.

**Highlights:** Classical time tracking for tasks, Task management with skill attribution, Skill cultivation progress visualization, Daily beautiful background pictures, Full-screen focus mode, Task priority setting, iCloud sync

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Account | $1.99 | one-time |

**What reviewers like**

- 🎨 Clean, minimalist, and beautiful interface design
- 👍 Simple and intuitive to use
- ⏱️ Effective Pomodoro timer functionality
- 💡 Innovative 10,000 hours tracking concept
- 🎵 Calm and soothing audio experience

**What reviewers complain about**

- 🌐 Incomplete English translation throughout app
- 🐛 Language setting doesn't fully apply to all text
- 🔧 Multiple bugs on Mac M1 devices
- ⏸️ Timer stops when phone is locked
- 🎵 Music cannot be disabled (only 4 preset options)

**Reported bugs**

- Skill recording time sync issue with manually uploaded tasks
- Timer freezes and requires manual time entry
- Language setting reverts to Japanese unexpectedly
- Data loss after app update
- Skills option disappeared after update

**Requested features**

- Complete English translation for all UI elements
- Customizable number of tasks per Pomodoro session
- Widget support for home screen
- Focus mode that discards time if app is switched
- Task deadline reminder notifications


### 柠檬自习室

[App page](https://appshunter.io/ios/app/id1562565200)

This app provides a virtual study environment to help users develop consistent study habits and improve focus. It offers various virtual classrooms, reminders, and daily statistics to track progress.

**Highlights:** Online study sessions, Choice of virtual classrooms, Realistic classroom simulation, Daily study statistics, Progress tracking, Reminders and check-ins

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 柠檬叶12元 | $1.99 | one-time |
| 自习礼盒-18元 | $2.99 | one-time |
| 柠檬叶18元 | $2.99 | one-time |
| 自习礼盒-25元 | $3.99 | one-time |


## Frequently asked questions

### Is Cuckoo Timer free?

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

### Is 柠檬自习室 free?

柠檬自习室 is free to download, with in-app purchases available.

### Which has better reviews, Cuckoo Timer or 柠檬自习室?

柠檬自习室 is rated higher. Cuckoo Timer averages 4.7 out of 5 from 319 ratings, while 柠檬自习室 averages 4.9 from 18 ratings.

### Do Cuckoo Timer or 柠檬自习室 have ads?

柠檬自习室 shows ads; Cuckoo Timer does not.

### Which is updated more often, Cuckoo Timer or 柠檬自习室?

Cuckoo Timer ships an update every 4 days, and 柠檬自习室 every 6 weeks. Most recently, Cuckoo Timer was updated on September 22, 2026 and 柠檬自习室 on September 21, 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.*