# kobak vs Bokgi Lucky Diary

The clearest difference is ads: kobak at none against Bokgi Lucky Diary's shown. Bokgi Lucky Diary's advantage is update cadence (weekly vs every 5 months). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. kobak sells 8 one-off in-app purchases and Bokgi Lucky Diary sells 15 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

kobak ships an update every 5 months, Bokgi Lucky Diary weekly. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | kobak | Bokgi Lucky Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (30 ratings)](https://appshunter.io/ios/app/bokgi-lucky-diary/id1605894697/reviews)** |
| Number of ratings | — | **30** |
| Positive reviews | 90.5% of reviews | **96.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 167 MB |
| Requires iOS | 15.0 | **14.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mijin Song](https://appshunter.io/developer/1494081857) | [Sung Hee Bae](https://appshunter.io/developer/1086551836) |

## What reviewers say

### kobak

[App page](https://appshunter.io/ios/app/kobak/id1520535538)

Develop good habits and track your progress with a fun sticker collection system. Earn rewards for consistency and celebrate your achievements as you become a better version of yourself.

**Highlights:** Sticker collection for habit tracking, Progress visualization, Reward system for consistency, Habit development support, Personalized goal setting

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 pencils | $0.99 | one-time |
| 2 pencils | $0.99 | one-time |
| 7 pencils | $1.99 | one-time |
| 11 pencils | $2.99 | one-time |
| 17 pencils | $4.99 | one-time |
| 19 pencils | $4.99 | one-time |
| 32 pencils | $7.99 | one-time |
| 45 pencils | $9.99 | one-time |


### Bokgi Lucky Diary

[App page](https://appshunter.io/ios/app/bokgi-lucky-diary/id1605894697)

This app helps you improve habits and track behavior patterns through journaling and self-assessment tools. It offers visual representations of life areas, challenges, and detailed statistics to foster personal growth and record daily life with notes and photos.

**Highlights:** Life Balance Self-Assessment, Habit Challenges, Monthly Calendar View, Color-coded Activity Blocks, Notes and Photos, Detailed Statistics, Customizable Icons and Themes

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus 1 Month | $1.99 | per month |
| Plus 3 Months | $4.99 | per 3 months |
| Plus 6 months | $7.99 | per 6 months |
| Plus 1 Year | $9.99 | per year |
| Rich bear | Free | one-time |
| Fluffy Puppy | Free | one-time |
| Relaxed Cat | Free | one-time |
| Good Shiba | Free | one-time |
| Yellow Cat | $0.99 | one-time |
| Basic Heart | $0.99 | one-time |
| Quick-witted Bunny | $0.99 | one-time |
| Christmas | $0.99 | one-time |
| hiphop chick | $0.99 | one-time |
| money dragon | $0.99 | one-time |
| Plus Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is kobak free?

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

### Is Bokgi Lucky Diary free?

Bokgi Lucky Diary is free to download, with in-app purchases available.

### Do kobak or Bokgi Lucky Diary have ads?

Bokgi Lucky Diary shows ads; kobak does not.

### Which is updated more often, kobak or Bokgi Lucky Diary?

kobak ships an update every 5 months, and Bokgi Lucky Diary weekly. Most recently, kobak was updated on October 11, 2026 and Bokgi Lucky Diary 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.*