# NBack 3D vs Numeris Game

The clearest difference is in-app purchases: Numeris Game at none against NBack 3D's 1. Numeris Game also leads on ads (none vs shown). NBack 3D's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.5). On price there is nothing between them.

Both are free to download. NBack 3D sells 1 one-off in-app purchase. Numeris Game asks for nothing beyond the download.

## The numbers

| Metric | NBack 3D | Numeris Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nback-3d/id1407606652/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 0 MB |
| Requires iOS | **15.6** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [DEXT SIA](https://appshunter.io/developer/1738813797) |

## What reviewers say

### NBack 3D

[App page](https://appshunter.io/ios/app/nback-3d/id1407606652)

This app challenges your memory by requiring you to count 3D shapes of specific colors. As the 'N' value increases, the difficulty escalates, testing your ability to recall past stimuli in a sequence.

**Highlights:** N-Back memory challenge, 3D shape and color recognition, Increasing difficulty levels, Sequence memorization, Cognitive skill enhancement

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extend to 20'Back & Remove Ads | $2.99 | one-time |


### Numeris Game

[App page](https://appshunter.io/ios/app/numeris-game/id6742061364)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NBack 3D free?

NBack 3D is free to download, with in-app purchases available.

### Is Numeris Game free?

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

### Do NBack 3D or Numeris Game have ads?

NBack 3D shows ads; Numeris Game does not.

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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.*