# M2Lens vs Simple Hidden Note

The clearest difference is in-app purchases: Simple Hidden Note at none against M2Lens's 1. Simple Hidden Note also leads on update cadence (daily vs every 2 days) and iOS requirement (15.1 vs 18.7). On price, ads and device support there is nothing between them.

Both are free to download. M2Lens sells 1 in-app purchase, starting at $2.99 per month. Simple Hidden Note asks for nothing beyond the download.

M2Lens ships an update every 2 days, Simple Hidden Note daily. The most recent releases landed on September 13, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | M2Lens | Simple Hidden Note |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Size | 27 MB | 35 MB |
| Requires iOS | 18.7 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takumu Hirohashi](https://appshunter.io/developer/1884874476) | [Next Level Order Engineering UG (haftungsbeschrankt)](https://appshunter.io/developer/1838301382) |

## What reviewers say

### M2Lens

[App page](https://appshunter.io/ios/app/m2lens/id6760541998)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProfitLens Premium | $2.99 | per month |


### Simple Hidden Note

[App page](https://appshunter.io/ios/app/simple-hidden-note/id6760840827)

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

**In-app purchases:** none


## Frequently asked questions

### Is M2Lens free?

M2Lens is free to download, with in-app purchases available.

### Is Simple Hidden Note free?

Simple Hidden Note is free to download, with no in-app purchases.

### Do M2Lens or Simple Hidden Note have ads?

Neither M2Lens nor Simple Hidden Note shows ads.

### Which is updated more often, M2Lens or Simple Hidden Note?

M2Lens ships an update every 2 days, and Simple Hidden Note daily. Most recently, M2Lens was updated on September 13, 2026 and Simple Hidden Note on September 17, 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.*