# NBack vs Lensly

The clearest difference is update cadence: Lensly at every 10 days against NBack's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. NBack sells 2 in-app purchases, starting at $1.99 per month and Lensly sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

NBack ships an update every 2 months, Lensly every 10 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | NBack | Lensly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nback-boost-iq/id6743346501/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Freemium | — |
| Size | 44 MB | 83 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [eric cesar](https://appshunter.io/developer/1783301800) | [Thang Pham](https://appshunter.io/developer/1809487848) |

## What reviewers say

### NBack

[App page](https://appshunter.io/ios/app/nback-boost-iq/id6743346501)

This scientifically validated cognitive training app is designed to enhance focus, memory, and problem-solving skills. It utilizes the dual n-back method, proven to increase fluid intelligence, offering a challenging yet rewarding experience for those seeking mental improvement.

**Highlights:** Scientifically validated cognitive training, Dual n-back method for fluid intelligence, Boosts memory and focus, Enhances problem-solving skills, Progress tracking with data-backed gains, Customizable user experience

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly membership | $1.99 | per month |
| Yearly membership | $14.99 | per year |


### Lensly

[App page](https://appshunter.io/ios/app/lensly-daily-reflection/id6753156632)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro monthly | $6.99 | per month |
| Pro yearly | $39.99 | per year |


## Frequently asked questions

### Is NBack free?

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

### Is Lensly free?

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

### Do NBack or Lensly have ads?

Neither NBack nor Lensly shows ads.

### Which is updated more often, NBack or Lensly?

NBack ships an update every 2 months, and Lensly every 10 days. Most recently, NBack was updated on October 30, 2026 and Lensly on November 5, 2026.

---

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