# mkZero vs Mental Math

The clearest difference is ads: Mental Math at none against mkZero's shown. mkZero's advantage is update cadence (every 5 weeks vs every 3 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. mkZero sells 9 one-off in-app purchases and Mental Math sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

mkZero ships an update every 5 weeks, Mental Math every 3 months. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | mkZero | Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 13 MB | 9 MB |
| Requires iOS | **12.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [GameJab OÜ](https://appshunter.io/developer/1831019149) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### mkZero

[App page](https://appshunter.io/ios/app/mkzero-math-challenge/id6749543532)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads For 3 Days | $0.29 | one-time |
| 20 Lives | $0.99 | one-time |
| 50 Lives | $1.99 | one-time |
| 100 Lives | $3.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 300 Lives | $9.99 | one-time |
| 500 Lives | $14.99 | one-time |
| 1,000 lives! | $24.99 | one-time |
| Infinite Lives | $99.99 | one-time |


### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-daily-drill/id6759973887)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly Plan | $2.99 | per 7 days |
| Premium Yearly | $14.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is mkZero free?

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

### Is Mental Math free?

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

### Do mkZero or Mental Math have ads?

mkZero shows ads; Mental Math does not.

### Which is updated more often, mkZero or Mental Math?

mkZero ships an update every 5 weeks, and Mental Math every 3 months. Most recently, mkZero was updated on November 12, 2026 and Mental Math on November 13, 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.*