# Harmony SASE vs PDF Key

The clearest difference is ads: Harmony SASE at none against PDF Key's shown. Harmony SASE also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). PDF Key's advantage is update cadence (monthly vs every 2 months). On price 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.

Harmony SASE ships an update every 2 months, PDF Key monthly. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Harmony SASE | PDF Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (30 ratings)](https://appshunter.io/ios/app/harmony-sase/id1307953381/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 42 MB | 5 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Check Point Software Technologies Ltd.](https://appshunter.io/developer/329011203) | [Riku Kanai](https://appshunter.io/developer/6779163817) |

## What reviewers say

### Harmony SASE

[App page](https://appshunter.io/ios/app/harmony-sase/id1307953381)

Securely access company resources and block harmful websites from any location. This service provides fast internet access and Zero Trust Access for remote workers, enabling businesses to build secure corporate networks quickly.

**Highlights:** Secure remote work, Block harmful websites, Fast internet access, Zero Trust Access, SD-WAN capabilities, Easy to manage

**Features:** Vision Pro support

**In-app purchases:** none


### PDF Key

[App page](https://appshunter.io/ios/app/pdf-key/id6782367129)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Harmony SASE free?

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

### Is PDF Key free?

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

### Do Harmony SASE or PDF Key have ads?

PDF Key shows ads; Harmony SASE does not.

### Which is updated more often, Harmony SASE or PDF Key?

Harmony SASE ships an update every 2 months, and PDF Key monthly. Most recently, Harmony SASE was updated on October 10, 2026 and PDF Key on October 16, 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.*