# Mental Workout vs ISOBA

The clearest difference is in-app purchases: ISOBA at none against Mental Workout's 1. ISOBA also leads on update cadence (every 4 days vs every 3 weeks). Mental Workout's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price and ads there is nothing between them.

Both are free to download. Mental Workout sells 1 in-app purchase, starting at $2.49 per month. ISOBA asks for nothing beyond the download.

Mental Workout ships an update every 3 weeks, ISOBA every 4 days. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Mental Workout | ISOBA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/mental-workout-memory-master/id1623646444/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 39 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Burhan Karakurt](https://appshunter.io/developer/1623646836) | [Welkinwits Technologies LLP](https://appshunter.io/developer/1577789313) |

## What reviewers say

### Mental Workout

[App page](https://appshunter.io/ios/app/mental-workout-memory-master/id1623646444)

This game challenges your working memory and cognitive speed by having you repeat increasingly complex sequences of lights and sounds. It offers two distinct modes and four difficulty levels to progressively sharpen your mind. Designed for daily use, it provides a quick, focused mental workout.

**Highlights:** Sequence memory challenges, Value memory recall, Four difficulty levels, Personal best tracking, Daily reminders and streaks, Offline play

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Memory and Brain Power Pro | $2.49 | per month |


### ISOBA

[App page](https://appshunter.io/ios/app/isoba/id6476114847)

**In-app purchases:** none


## Frequently asked questions

### Is Mental Workout free?

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

### Is ISOBA free?

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

### Do Mental Workout or ISOBA have ads?

Neither Mental Workout nor ISOBA shows ads.

### Which is updated more often, Mental Workout or ISOBA?

Mental Workout ships an update every 3 weeks, and ISOBA every 4 days. Most recently, Mental Workout was updated on September 21, 2026 and ISOBA on September 9, 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.*