# Locus GTD vs Second Brain

The clearest difference is in-app purchases: Second Brain at none against Locus GTD's 4. Second Brain also leads on update cadence (every 2 days vs every 4 days). Locus GTD's advantage is iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Locus GTD sells 4 in-app purchases, starting at $1.19 per 7 days. Second Brain asks for nothing beyond the download.

Locus GTD ships an update every 4 days, Second Brain every 2 days. The most recent releases landed on October 3, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Locus GTD | Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (9 ratings)](https://appshunter.io/ios/app/locus-gtd-ai-task-planner/id6738880378/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 26 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [嘉豪 栾](https://appshunter.io/developer/1697593253) | [kim dahye](https://appshunter.io/developer/1868391710) |

## What reviewers say

### Locus GTD

[App page](https://appshunter.io/ios/app/locus-gtd-ai-task-planner/id6738880378)

This app helps you manage tasks and projects efficiently with AI-powered planning, intelligent filtering, and customizable organization. It aims to bring clarity and control to your life, helping you find focus and master your workflow.

**Highlights:** AI-powered task breakdown, Infinite-level projects, Flexible tagging system, Intelligent filtering and perspectives, Customizable themes, iCloud synchronization

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Locus Pro (1 Week) | $1.19 | per 7 days |
| Locus Pro (1 Month) | $2.49 | per month |
| Locus Pro (1 Year) | $24.99 | per year |
| Locus Pro (Lifetime) | $79.99 | one-time |


### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-ai-note/id6799343264)

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

**In-app purchases:** none


## Frequently asked questions

### Is Locus GTD free?

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

### Is Second Brain free?

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

### Do Locus GTD or Second Brain have ads?

Neither Locus GTD nor Second Brain shows ads.

### Which is updated more often, Locus GTD or Second Brain?

Locus GTD ships an update every 4 days, and Second Brain every 2 days. Most recently, Locus GTD was updated on October 3, 2026 and Second Brain on September 23, 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.*