# HLL Pdf Reader vs SealPath Viewer

The clearest difference is update cadence: SealPath Viewer at every 2 months against HLL Pdf Reader's every 9 months. SealPath Viewer also leads on iOS requirement (12.2 vs 15.0). On price, ads, 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.

HLL Pdf Reader ships an update every 9 months, SealPath Viewer every 2 months. The most recent releases landed on August 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | HLL Pdf Reader | SealPath Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hll-pdf-reader/id1083359852/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 15 MB | 80 MB |
| Requires iOS | 15.0 | **12.2** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [hades lade lam](https://appshunter.io/developer/1066160322) | [SealPath Technologies](https://appshunter.io/developer/848347064) |

## What reviewers say

### HLL Pdf Reader

[App page](https://appshunter.io/ios/app/hll-pdf-reader/id1083359852)

This app offers a streamlined PDF reading experience with an iBooks-inspired interface. It provides features like recent reading history, page cropping for larger content views, and an outline for easy navigation. Zooming is simplified with double-tap gestures.

**Highlights:** iBooks-like design, Reading history, Page cropping, Document outline, Double-tap zoom, Automatic fit on rotation

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

**In-app purchases:** none


### SealPath Viewer

[App page](https://appshunter.io/ios/app/sealpath-viewer/id1618212980)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HLL Pdf Reader free?

HLL Pdf Reader is free to download, with no in-app purchases.

### Is SealPath Viewer free?

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

### Do HLL Pdf Reader or SealPath Viewer have ads?

Neither HLL Pdf Reader nor SealPath Viewer shows ads.

### Which is updated more often, HLL Pdf Reader or SealPath Viewer?

HLL Pdf Reader ships an update every 9 months, and SealPath Viewer every 2 months. Most recently, HLL Pdf Reader was updated on August 17, 2026 and SealPath Viewer on September 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*