# Modulo vs Mo Layer

The clearest difference is iOS requirement: Mo Layer at 18.0 against Modulo's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Modulo sells 1 one-off in-app purchase and Mo Layer sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Modulo ships an update fortnightly, Mo Layer monthly. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Modulo | Mo Layer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mo-layer/id6772853639/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 21 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [博阳 李](https://appshunter.io/developer/1841159063) | [晓枫 胡](https://appshunter.io/developer/1840537864) |

## What reviewers say

### Modulo

[App page](https://appshunter.io/ios/app/modulo-private-album-vault/id6757307809)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Modulo Premium | $9.99 | one-time |


### Mo Layer

[App page](https://appshunter.io/ios/app/mo-layer/id6772853639)

Securely organize and protect your private photos, videos, and important documents. Keep sensitive content separate from your public camera roll and easily find what you need with custom albums and a discreet interface. Offers optional encrypted iCloud sync for backup and recovery.

**Highlights:** Secure photo and file protection, Import from Photos, Camera, Files, Organize with albums and favorites, Encrypted iCloud sync, Discreet interface and decoy space, Unlimited storage (Pro), Batch organization (Pro)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $3.99 | per month |
| Yearly Pro | $19.99 | per year |
| Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Modulo free?

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

### Is Mo Layer free?

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

### Do Modulo or Mo Layer have ads?

Neither Modulo nor Mo Layer shows ads.

### Which is updated more often, Modulo or Mo Layer?

Modulo ships an update fortnightly, and Mo Layer monthly. Most recently, Modulo was updated on October 2, 2026 and Mo Layer on October 15, 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.*