# Untangle vs Sumbi

The clearest difference is in-app purchases: Untangle at none against Sumbi's 3. On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Sumbi sells 3 one-off in-app purchases. Untangle asks for nothing beyond the download.

Untangle ships an update every 6 days, Sumbi weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Untangle | Sumbi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sumbi-study-focus-timer/id6802502926/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Free | Free |
| Size | 87 MB | 94 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [taekyun kim](https://appshunter.io/developer/6793568247) | [나이스데이](https://appshunter.io/developer/1751418356) |

## What reviewers say

### Untangle

[App page](https://appshunter.io/ios/app/untangle-adhd-planner-and-to-do/id6793568245)

This AI assistant helps organize your thoughts and break down overwhelming tasks into manageable steps. It simplifies planning by suggesting just five daily priorities, making it easier to start and complete your to-do list.

**Highlights:** AI-powered task organization, Breaks down complex tasks, Limits daily tasks to five, Conversational task management, Task decomposition into small steps

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

**In-app purchases:** none


### Sumbi

[App page](https://appshunter.io/ios/app/sumbi-study-focus-timer/id6802502926)

This app encourages users to spend less time on their phones by gamifying digital detox. Users engage in timed "dives" away from their devices, earning virtual sea creatures based on their focus duration. It offers a peaceful, non-punitive approach to building healthier digital habits.

**Highlights:** Timed phone-free dives, Unlock virtual sea creatures, Personalized ocean environment, Buddy dive feature, Night sea creatures, Diary-like dive log

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shallow Sea Creature | $0.99 | one-time |
| Deep Sea Creature | $1.99 | one-time |
| Abyssal Creature | $2.99 | one-time |


## Frequently asked questions

### Is Untangle free?

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

### Is Sumbi free?

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

### Do Untangle or Sumbi have ads?

Neither Untangle nor Sumbi shows ads.

### Which is updated more often, Untangle or Sumbi?

Untangle ships an update every 6 days, and Sumbi weekly. Most recently, Untangle was updated on October 31, 2026 and Sumbi on October 31, 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.*