# BrainGym Ai vs SERG

The clearest difference is device support: BrainGym Ai at 3 against SERG's 1. BrainGym Ai also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. BrainGym Ai sells 3 in-app purchases, starting at $6.99 per 7 days and SERG sells 2 in-app purchases, starting at $35.00 per month. Whichever you choose, the download price is not the number that matters.

BrainGym Ai ships an update weekly, SERG fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | BrainGym Ai | SERG |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 137 MB | 85 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [dave desormeau](https://appshunter.io/developer/1874461805) | [Safe with SERG inc](https://appshunter.io/developer/1886728506) |

## What reviewers say

### BrainGym Ai

[App page](https://appshunter.io/ios/app/braingym-ai-brain-training/id6758684203)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrainGym Ai - Weekly | $6.99 | per 7 days |
| BrainGym Ai - Annual | $69.99 | per year |
| BrainGym Ai - Streak Recovery | $0.99 | one-time |


### SERG

[App page](https://appshunter.io/ios/app/serg/id6760905097)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $35.00 | per month |
| Yearly Subscription | $300.00 | per year |


## Frequently asked questions

### Is BrainGym Ai free?

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

### Is SERG free?

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

### Do BrainGym Ai or SERG have ads?

Neither BrainGym Ai nor SERG shows ads.

### Which is updated more often, BrainGym Ai or SERG?

BrainGym Ai ships an update weekly, and SERG fortnightly. Most recently, BrainGym Ai was updated on October 25, 2026 and SERG on October 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.*