# Memo+ (Memorize & Calculate) vs mkZero

Memo+ (Memorize & Calculate) and mkZero are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Memo+ (Memorize & Calculate) sells 1 one-off in-app purchase and mkZero sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Memo+ (Memorize & Calculate) ships an update every 2 months, mkZero every 5 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Memo+ (Memorize & Calculate) | mkZero |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 13 MB |
| Requires iOS | **12.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Sergi Palomares Redon](https://appshunter.io/developer/1460565445) | [GameJab OÜ](https://appshunter.io/developer/1831019149) |

## What reviewers say

### Memo+ (Memorize & Calculate)

[App page](https://appshunter.io/ios/app/memo-plus-memorize-and-calculate/id1539317458)

This game challenges your memory and math skills by having you find pairs of numbers on a board that add up to a target sum. It's designed to enhance visual memory and quick calculation abilities for players of all ages.

**Highlights:** Find number pairs that sum to a target, Improves visual memory, Enhances calculation speed, Timed gameplay for challenges, Suitable for all ages

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove advertisements | $6.99 | one-time |


### 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 |


## Frequently asked questions

### Is Memo+ (Memorize & Calculate) free?

Memo+ (Memorize & Calculate) is free to download, with in-app purchases available.

### Is mkZero free?

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

### Do Memo+ (Memorize & Calculate) or mkZero have ads?

Both Memo+ (Memorize & Calculate) and mkZero show ads.

### Which is updated more often, Memo+ (Memorize & Calculate) or mkZero?

Memo+ (Memorize & Calculate) ships an update every 2 months, and mkZero every 5 weeks. Most recently, Memo+ (Memorize & Calculate) was updated on October 24, 2026 and mkZero 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.*