# Liefer vs SecureDoc · Document Vault AI

The clearest difference is in-app purchases: Liefer at none against SecureDoc · Document Vault AI's 3. Liefer also leads on iOS requirement (13.6 vs 17.6). SecureDoc · Document Vault AI's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. SecureDoc · Document Vault AI sells 3 in-app purchases, starting at $2.99 per month. Liefer asks for nothing beyond the download.

Liefer ships an update every 6 weeks, SecureDoc · Document Vault AI every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Liefer | SecureDoc · Document Vault AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 43 MB | 28 MB |
| Requires iOS | **13.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LieferMax GmbH](https://appshunter.io/developer/1510280653) | [Frantisek Varadzin](https://appshunter.io/developer/1782157075) |

## What reviewers say

### Liefer

[App page](https://appshunter.io/ios/app/liefer-max/id1659712322)

**Features:** macOS Compatibility

**In-app purchases:** none


### SecureDoc · Document Vault AI

[App page](https://appshunter.io/ios/app/securedoc-document-vault-ai/id6748312274)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SecureDoc PRO | $2.99 | per month |
| English | $3.99 | per month |
| Unlimited Access | $24.99 | per year |


## Frequently asked questions

### Is Liefer free?

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

### Is SecureDoc · Document Vault AI free?

SecureDoc · Document Vault AI is free to download, with in-app purchases available.

### Do Liefer or SecureDoc · Document Vault AI have ads?

Neither Liefer nor SecureDoc · Document Vault AI shows ads.

### Which is updated more often, Liefer or SecureDoc · Document Vault AI?

Liefer ships an update every 6 weeks, and SecureDoc · Document Vault AI every 3 weeks. Most recently, Liefer was updated on October 27, 2026 and SecureDoc · Document Vault AI on October 25, 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.*