# EnjoyNumberMemory vs NBackCalc

The clearest difference is in-app purchases: EnjoyNumberMemory at none against NBackCalc's 1. EnjoyNumberMemory also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. NBackCalc sells 1 one-off in-app purchase. EnjoyNumberMemory asks for nothing beyond the download.

## The numbers

| Metric | EnjoyNumberMemory | NBackCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Size | 14 MB | 1 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yuta itsukage](https://appshunter.io/developer/1666140618) | [YOSHINORI KONNO](https://appshunter.io/developer/1883074860) |

## What reviewers say

### EnjoyNumberMemory

[App page](https://appshunter.io/ios/app/enjoynumbermemory/id6758234941)

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

**In-app purchases:** none


### NBackCalc

[App page](https://appshunter.io/ios/app/nbackcalc-working-memory/id6760832395)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 開発者を応援する | $0.99 | one-time |


## Frequently asked questions

### Is EnjoyNumberMemory free?

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

### Is NBackCalc free?

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

### Do EnjoyNumberMemory or NBackCalc have ads?

Neither EnjoyNumberMemory nor NBackCalc shows ads.

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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.*