# Energy vs Second Brain

The clearest difference is in-app purchases: Second Brain at none against Energy's 1. Second Brain also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). Energy's advantage is iOS requirement (13.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Energy sells 1 one-off in-app purchase. Second Brain asks for nothing beyond the download.

Energy ships an update every 3 months, Second Brain every 3 weeks. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Energy | Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 207 MB | 2 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Wendl](https://appshunter.io/developer/1754836410) | [Jikku Chacko](https://appshunter.io/developer/1882820555) |

## What reviewers say

### Energy

[App page](https://appshunter.io/ios/app/energy-based-routine/id6745750243)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Version | $3.99 | one-time |


### Second Brain

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Energy free?

Energy 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 Energy or Second Brain have ads?

Energy shows ads; Second Brain does not.

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

Energy ships an update every 3 months, and Second Brain every 3 weeks. Most recently, Energy was updated on September 25, 2026 and Second Brain on September 28, 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.*