# Just Do it vs SecondBrain

The clearest difference is in-app purchases: Just Do it at none against SecondBrain's 3. Just Do it also leads on ads (none vs shown). SecondBrain's advantage is update cadence (every 3 days vs every 3 weeks) and device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. SecondBrain sells 3 in-app purchases, starting at $8.99 per month. Just Do it asks for nothing beyond the download.

Just Do it ships an update every 3 weeks, SecondBrain every 3 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Just Do it | SecondBrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/secondbrain-ai-memory/id6762130376/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 31 MB | 73 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [剑平 沈](https://appshunter.io/developer/697786414) | [Federico Cesarini](https://appshunter.io/developer/1888767256) |

## What reviewers say

### Just Do it

[App page](https://appshunter.io/ios/app/just-do-it/id697786411)

**In-app purchases:** none


### SecondBrain

[App page](https://appshunter.io/ios/app/secondbrain-ai-memory/id6762130376)

This app automatically transcribes, titles, and files your spoken thoughts, creating a self-organizing note system. It can convert voice notes into calendar events, provide daily summaries, and allow you to chat with your saved information.

**Highlights:** Automatic transcription and titling, AI-powered self-organizing notes, Voice to calendar event creation, Daily morning briefing summaries, Chat with your notes for answers, 3D brain graph visualization, Full-text search, Cross-app sharing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SecondBrain Pro | $8.99 | per month |
| SecondBrain Pro Yearly | $34.99 | per year |
| SecondBrain Pro Yearly | $44.99 | per year |


## Frequently asked questions

### Is Just Do it free?

Just Do it is free to download, with no in-app purchases.

### Is SecondBrain free?

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

### Do Just Do it or SecondBrain have ads?

SecondBrain shows ads; Just Do it does not.

### Which is updated more often, Just Do it or SecondBrain?

Just Do it ships an update every 3 weeks, and SecondBrain every 3 days. Most recently, Just Do it was updated on October 2, 2026 and SecondBrain on October 10, 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.*