# Second Brain vs Untangle

The clearest difference is in-app purchases: Second Brain at none against Untangle's 10. Second Brain also leads on ads (none vs shown). Untangle's advantage is update cadence (every 8 days vs every 3 weeks) and iOS requirement (15.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Untangle sells 10 in-app purchases, starting at $4.99 per 7 days. Second Brain asks for nothing beyond the download.

Second Brain ships an update every 3 weeks, Untangle every 8 days. The most recent releases landed on October 13, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Second Brain | Untangle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (5 ratings)](https://appshunter.io/ios/app/untangle-adhd-planner/id6760900702/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 100 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jikku Chacko](https://appshunter.io/developer/1882820555) | [Multivox LTD](https://appshunter.io/developer/1886700277) |

## What reviewers say

### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-adhd-planner/id6760140172)

**Features:** macOS Compatibility

**In-app purchases:** none


### Untangle

[App page](https://appshunter.io/ios/app/untangle-adhd-planner/id6760900702)

This app helps individuals with ADHD manage tasks and reduce overwhelm. It features an AI coach that untangles thoughts into a prioritized plan, breaks down large tasks, and offers focus-enhancing tools like ambient audio and timers.

**Highlights:** AI ADHD Coach, Brain Dump functionality, AI Game Plan prioritization, Magic Task Breakdown, Body Doubling Mode, Ambient Focus Audio, Focus Timer

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Untangle Annual | $4.99 | per 7 days |
| Untangle Annual | $5.99 | per 7 days |
| Untangle Weekly Premium | $9.99 | per 7 days |
| Untangle Monthly Subscription | $9.99 | per month |
| Untangle Monthly Premium | $14.99 | per month |
| Untangle Weekly Premium+ | $14.99 | per 7 days |
| Untangle Annual | $39.99 | per year |
| Untangle Annual | $49.99 | per year |
| Untangle Annual Premium | $59.99 | per year |
| Untangle Annual Premium+ | $79.99 | per year |


## Frequently asked questions

### Is Second Brain free?

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

### Is Untangle free?

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

### Do Second Brain or Untangle have ads?

Untangle shows ads; Second Brain does not.

### Which is updated more often, Second Brain or Untangle?

Second Brain ships an update every 3 weeks, and Untangle every 8 days. Most recently, Second Brain was updated on October 13, 2026 and Untangle on September 22, 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.*