# Brain Games vs HydrosenseAI

The clearest difference is in-app purchases: HydrosenseAI at none against Brain Games's 3. HydrosenseAI also leads on update cadence (fortnightly vs monthly) and iOS requirement (14.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Brain Games sells 3 in-app purchases, starting at $8.99 per month. HydrosenseAI asks for nothing beyond the download.

Brain Games ships an update monthly, HydrosenseAI fortnightly. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Brain Games | HydrosenseAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 13 MB | 59 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Vitaliia Velychko](https://appshunter.io/developer/1749595398) | [Innovosens](https://appshunter.io/developer/1550075388) |

## What reviewers say

### Brain Games

[App page](https://appshunter.io/ios/app/brain-games-memory-trainer/id6756006458)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Brain Games: 1 month Subscription | $8.99 | per month |
| Brain Games: 1 month Subscription | $8.99 | per month |
| Brain Games: Annual Subscription | $39.99 | per year |


### HydrosenseAI

[App page](https://appshunter.io/ios/app/hydrosenseai/id6759246981)

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

**In-app purchases:** none


## Frequently asked questions

### Is Brain Games free?

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

### Is HydrosenseAI free?

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

### Do Brain Games or HydrosenseAI have ads?

Neither Brain Games nor HydrosenseAI shows ads.

### Which is updated more often, Brain Games or HydrosenseAI?

Brain Games ships an update monthly, and HydrosenseAI fortnightly. Most recently, Brain Games was updated on October 24, 2026 and HydrosenseAI on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*