# Time Radar vs Second Brain

The clearest difference is in-app purchases: Time Radar at none against Second Brain's 2. Time Radar also leads on iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Second Brain sells 2 in-app purchases, starting at $7.99 per 7 days. Time Radar asks for nothing beyond the download.

## The numbers

| Metric | Time Radar | Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 46 MB | 55 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yousif Alharbi](https://appshunter.io/developer/1870955610) | [Terra Innovations](https://appshunter.io/developer/1789492814) |

## What reviewers say

### Time Radar

[App page](https://appshunter.io/ios/app/time-radar/id6778380975)

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

**In-app purchases:** none


### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-ai-assistant/id6792532203)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Monthly | $29.99 | per month |


## Frequently asked questions

### Is Time Radar free?

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

### Is Second Brain free?

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

### Do Time Radar or Second Brain have ads?

Neither Time Radar nor Second Brain shows ads.

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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.*