# NBack Game vs Helius' World Games

The clearest difference is in-app purchases: NBack Game at none against Helius' World Games's 3. NBack Game also leads on update cadence (every 3 weeks vs every 3 months). Helius' World Games's advantage is review sentiment (100% vs 89%). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Helius' World Games sells 3 one-off in-app purchases. NBack Game asks for nothing beyond the download.

NBack Game ships an update every 3 weeks, Helius' World Games every 3 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | NBack Game | Helius' World Games |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (27 ratings)](https://appshunter.io/ios/app/nback-game/id1542512368/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 89.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 19 MB | 11 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Kornel Miszczak](https://appshunter.io/developer/1542512370) | [Serge Kotov](https://appshunter.io/developer/1273120209) |

## What reviewers say

### NBack Game

[App page](https://appshunter.io/ios/app/nback-game/id1542512368)

This game challenges your memory by requiring you to match sounds and positions from a specified number of rounds ago. Regular play has been shown to enhance both short-term and long-term memory recall. Unlock new levels as you successfully complete each stage of increasing difficulty.

**Highlights:** N-back task implementation, Sound and position matching, Short and long-term memory improvement, 25 difficulty levels, Progressive level unlocking, In-game tutorial

**Features:** Vision Pro support

**In-app purchases:** none


### Helius' World Games

[App page](https://appshunter.io/ios/app/helius-world-games/id1613400485)

Engage in a competitive game with six distinct abilities and tribes. Prove your skills through mini-games and puzzles that adapt to your abilities. Compete in seasonal contests to advance and achieve top leaderboard rankings.

**Highlights:** Six distinct abilities and tribes, Adaptive difficulty mini-games and puzzles, Seasonal contests and leaderboards, Strategic gameplay with unique playing fields, Tribe-specific task encounters, Ability to change tribes between seasons

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Helius' World Games Attempt 4 | $0.99 | one-time |
| Helius' World Games Attempt 5 | $1.99 | one-time |
| Helius' World Games Attempt 6 | $2.99 | one-time |


## Frequently asked questions

### Is NBack Game free?

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

### Is Helius' World Games free?

Helius' World Games is free to download, with in-app purchases available.

### Do NBack Game or Helius' World Games have ads?

Neither NBack Game nor Helius' World Games shows ads.

### Which is updated more often, NBack Game or Helius' World Games?

NBack Game ships an update every 3 weeks, and Helius' World Games every 3 months. Most recently, NBack Game was updated on November 7, 2026 and Helius' World Games on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*