# iDay vs 柠檬自习室

The clearest difference is rating: 柠檬自习室 at 4.9 against iDay's 4.7. 柠檬自习室 also leads on iOS requirement (13.0 vs 15.6). iDay's advantage is ratings volume (71 vs 18). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. iDay 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. Both are backed by a comparable volume of ratings — 71 and 18 respectively. Written reviews point the same way: 89% of iDay's written reviews are positive against 95% of 柠檬自习室's.

iDay ships an update every 2 months, 柠檬自习室 every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | iDay | 柠檬自习室 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (71 ratings)](https://appshunter.io/ios/app/iday/id1458342824/reviews) | **[4.9 (18 ratings)](https://appshunter.io/ios/app/id1562565200/reviews)** |
| Number of ratings | **71** | 18 |
| Positive reviews | 88.9% of reviews | **94.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 63 MB | 171 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [再锋 吴](https://appshunter.io/developer/1444700755) | [Chengdu Ningmengyoumeng Science & Technology Co., Ltd](https://appshunter.io/developer/1452864063) |

## What reviewers say

### iDay

[App page](https://appshunter.io/ios/app/iday/id1458342824)

This app helps you focus and overcome procrastination using the Pomodoro Technique. It offers customizable timers, ambient sounds, and study modes to create a distraction-free environment for work and study.

**Highlights:** Pomodoro Technique timer (25 min focus, 5 min rest), Customizable focus and rest timers, Ambient soundscapes (waves, rain, forest, cafe), Study area with flip mode to prevent phone use, Task reminders and procrastination tools, Data statistics for tracking efforts

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 高级会员 | $2.99 | one-time |


### 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 iDay free?

iDay 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, iDay or 柠檬自习室?

柠檬自习室 is rated higher. iDay averages 4.7 out of 5 from 71 ratings, while 柠檬自习室 averages 4.9 from 18 ratings.

### Do iDay or 柠檬自习室 have ads?

Both iDay and 柠檬自习室 show ads.

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

iDay ships an update every 2 months, and 柠檬自习室 every 6 weeks. Most recently, iDay was updated on October 24, 2026 and 柠檬自习室 on October 24, 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.*