# Brain Duo vs MirrorBro

The clearest difference is in-app purchases: MirrorBro at none against Brain Duo's 2. Brain Duo's advantage is update cadence (every 3 days vs every 5 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Brain Duo sells 2 in-app purchases, starting at $3.99 per month. MirrorBro asks for nothing beyond the download.

Brain Duo ships an update every 3 days, MirrorBro every 5 months. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Brain Duo | MirrorBro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/brain-duo-brain-training/id6741551111/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 334 MB | 44 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brain Duo Tech LLC](https://appshunter.io/developer/1794668165) | [Tsubasa Kishimoto](https://appshunter.io/developer/1823585312) |

## What reviewers say

### Brain Duo

[App page](https://appshunter.io/ios/app/brain-duo-brain-training/id6741551111)

Engage in fun games designed to enhance focus, concentration, problem-solving, and mental math. Discover more about yourself through personality and IQ tests while fostering personal growth and a sharper mind.

**Highlights:** Personalized brain workouts, Focus and concentration games, Problem-solving challenges, Mental math exercises, Personality and IQ tests, Promotes self-improvement

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access - Monthly | $3.99 | per month |
| Lifetime - Premium Access | $19.99 | one-time |


### MirrorBro

[App page](https://appshunter.io/ios/app/mirrorbro/id6747958026)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Brain Duo free?

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

### Is MirrorBro free?

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

### Do Brain Duo or MirrorBro have ads?

Neither Brain Duo nor MirrorBro shows ads.

### Which is updated more often, Brain Duo or MirrorBro?

Brain Duo ships an update every 3 days, and MirrorBro every 5 months. Most recently, Brain Duo was updated on October 8, 2026 and MirrorBro on October 7, 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.*