# Notepad AI vs Lumenus Vault

The clearest difference is update cadence: Notepad AI at every 4 days against Lumenus Vault's every 5 months. Notepad AI also leads on device support (3 vs 1) and iOS requirement (14.0 vs 16.6). On price, ads and in-app purchases there is nothing between them.

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

Notepad AI ships an update every 4 days, Lumenus Vault every 5 months. The most recent releases landed on September 26, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Notepad AI | Lumenus Vault |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 months |
| Size | 10 MB | 32 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Diep Quoc Vuong](https://appshunter.io/developer/1787632957) | [萍 公](https://appshunter.io/developer/1854281135) |

## What reviewers say

### Notepad AI

[App page](https://appshunter.io/ios/app/notepad-ai-c-plus-plus/id6754082567)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumenus Vault

[App page](https://appshunter.io/ios/app/lumenus-vault/id6756407795)

**In-app purchases:** none


## Frequently asked questions

### Is Notepad AI free?

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

### Is Lumenus Vault free?

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

### Do Notepad AI or Lumenus Vault have ads?

Neither Notepad AI nor Lumenus Vault shows ads.

### Which is updated more often, Notepad AI or Lumenus Vault?

Notepad AI ships an update every 4 days, and Lumenus Vault every 5 months. Most recently, Notepad AI was updated on September 26, 2026 and Lumenus Vault on September 14, 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.*