# CypherGuard PDF vs SimpleVenti

The clearest difference is ads: CypherGuard PDF at none against SimpleVenti's shown. SimpleVenti's advantage is update cadence (every 5 weeks vs every 5 months) and iOS requirement (12.0 vs 14.0). On price, 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.

CypherGuard PDF ships an update every 5 months, SimpleVenti every 5 weeks. The most recent releases landed on June 7, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | CypherGuard PDF | SimpleVenti |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/cypherguard-pdf/id781435650/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 29 MB | 32 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CypherTec Inc.](https://appshunter.io/developer/507907491) | [Kotaro Tanaka](https://appshunter.io/developer/1811339750) |

## What reviewers say

### CypherGuard PDF

[App page](https://appshunter.io/ios/app/cypherguard-pdf/id781435650)

View and access protected PDF documents using advanced cryptographic technology. This application allows you to open regular PDFs and securely view encrypted files after authentication.

**Highlights:** View protected PDF documents, Open encrypted PDF files, Authentication for secure access, Supports regular PDF documents, Content protection features

**Features:** Vision Pro support

**In-app purchases:** none


### SimpleVenti

[App page](https://appshunter.io/ios/app/simpleventi/id6745219291)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CypherGuard PDF free?

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

### Is SimpleVenti free?

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

### Do CypherGuard PDF or SimpleVenti have ads?

SimpleVenti shows ads; CypherGuard PDF does not.

### Which is updated more often, CypherGuard PDF or SimpleVenti?

CypherGuard PDF ships an update every 5 months, and SimpleVenti every 5 weeks. Most recently, CypherGuard PDF was updated on June 7, 2026 and SimpleVenti on September 6, 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.*