# kobak vs TDDD

The clearest difference is ads: kobak at none against TDDD's shown. TDDD's advantage is update cadence (every 5 days vs every 5 months) and review sentiment (100% vs 90%). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. kobak sells 8 one-off in-app purchases and TDDD sells 2 in-app purchases, starting at $0.99 per year. Whichever you choose, the download price is not the number that matters.

kobak ships an update every 5 months, TDDD every 5 days. The most recent releases landed on October 11, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | kobak | TDDD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/tddd-to-do-do-do/id6443962759/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 90.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 9 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mijin Song](https://appshunter.io/developer/1494081857) | [SEUNG YEOP YEOM](https://appshunter.io/developer/1510321115) |

## 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 |


### TDDD

[App page](https://appshunter.io/ios/app/tddd-to-do-do-do/id6443962759)

Easily manage your tasks with this straightforward to-do list application. Get timely reminders and organize your tasks with customizable categories. Sync your data across devices for seamless access.

**Highlights:** Easy to-do addition, Customizable categories with colors and emojis, Scheduled notifications, Lock settings, iCloud syncing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual plan | $0.99 | per year |
| Lifetime plan | $2.99 | one-time |


## Frequently asked questions

### Is kobak free?

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

### Is TDDD free?

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

### Do kobak or TDDD have ads?

TDDD shows ads; kobak does not.

### Which is updated more often, kobak or TDDD?

kobak ships an update every 5 months, and TDDD every 5 days. Most recently, kobak was updated on October 11, 2026 and TDDD on October 29, 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.*