# Lucentra23 vs Sleep Affirmations AI

The clearest difference is update cadence: Lucentra23 at every 5 days against Sleep Affirmations AI's monthly. Lucentra23 also leads on iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lucentra23 ships an update every 5 days, Sleep Affirmations AI monthly. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Lucentra23 | Sleep Affirmations AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Size | 110 MB | 6 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dopame Pte. Ltd.](https://appshunter.io/developer/1832457748) | [Combyne Apps](https://appshunter.io/developer/1896591833) |

## What reviewers say

### Lucentra23

[App page](https://appshunter.io/ios/app/lucentra23/id6759278585)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sleep Affirmations AI

[App page](https://appshunter.io/ios/app/sleep-affirmations-ai/id6768639388)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lucentra23 free?

Lucentra23 is free to download, with no in-app purchases.

### Is Sleep Affirmations AI free?

Sleep Affirmations AI is free to download, with no in-app purchases.

### Do Lucentra23 or Sleep Affirmations AI have ads?

Neither Lucentra23 nor Sleep Affirmations AI shows ads.

### Which is updated more often, Lucentra23 or Sleep Affirmations AI?

Lucentra23 ships an update every 5 days, and Sleep Affirmations AI monthly. Most recently, Lucentra23 was updated on October 16, 2026 and Sleep Affirmations AI on October 5, 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.*