# Lesson Manager vs 센터다이어리

The clearest difference is in-app purchases: 센터다이어리 at none against Lesson Manager's 2. 센터다이어리 also leads on iOS requirement (13.0 vs 17). Lesson Manager's advantage is update cadence (fortnightly vs every 19 months). On price, ads and device support there is nothing between them.

Both are free to download. Lesson Manager sells 2 in-app purchases, starting at $1.99 per month. 센터다이어리 asks for nothing beyond the download.

Lesson Manager ships an update fortnightly, 센터다이어리 every 19 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Lesson Manager | 센터다이어리 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/lesson-manager/id1529588362/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 83.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 19 months |
| Monetization | Free with in-app purchases | — |
| Size | 77 MB | 2 MB |
| Requires iOS | 17 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Dodam&Company](https://appshunter.io/developer/1529588364) | [Dahan Edu Inc.](https://appshunter.io/developer/1610117307) |

## What reviewers say

### Lesson Manager

[App page](https://appshunter.io/ios/app/lesson-manager/id1529588362)

Effortlessly manage your child's multiple lessons and fees. Track schedules, payments, and progress with smart reminders and automated reports. Ideal for busy families and educators seeking organization and peace of mind.

**Highlights:** Visual weekly schedule with home widget, Smart payment tracking with status indicators, Timely lesson reminders, One-touch attendance and payment recording, Progress notes and homework tracking, Monthly expense reports

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus - Monthly | $1.99 | per month |
| Plus - Annually | $19.49 | per year |

**What reviewers like**

- 👍 Great for managing tutoring/private lessons
- 👍 Excellent for student schedule and fee management
- 👍 Useful for parents managing children's schedules
- 👍 Convenient for lesson record-keeping
- 👍 Helpful for managing academy operations

**What reviewers complain about**

- 🐛 Data loss after updates
- 🐛 App crashes frequently
- 🐛 App not opening/launching
- 🐛 Calculation errors in lesson days/fees
- 🐛 Text display issues (white on white)

**Reported bugs**

- Data loss after updates
- App crashes frequently
- App not opening/launching
- Calculation errors in lesson days/fees
- Text display issues (white on white)

**Requested features**

- Allow setting hourly rates
- Add option to set time-based costs
- Add widget for timetable
- Add field for additional expenses (book costs, exam fees, etc.)
- Expand schedule time range (e.g., 6 AM - 2 PM)


### 센터다이어리

[App page](https://appshunter.io/ios/app/id1610117305)

**In-app purchases:** none


## Frequently asked questions

### Is Lesson Manager free?

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

### Is 센터다이어리 free?

센터다이어리 is free to download, with no in-app purchases.

### Do Lesson Manager or 센터다이어리 have ads?

Neither Lesson Manager nor 센터다이어리 shows ads.

### Which is updated more often, Lesson Manager or 센터다이어리?

Lesson Manager ships an update fortnightly, and 센터다이어리 every 19 months. Most recently, Lesson Manager was updated on November 7, 2026 and 센터다이어리 on November 7, 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.*