# HLL Pdf Reader vs Memo Search

The clearest difference is price: HLL Pdf Reader at Free against Memo Search's $1.99. HLL Pdf Reader also leads on rating (5.0 vs 4.5) and update cadence (every 9 months vs every 23 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

HLL Pdf Reader is free to download; Memo Search costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HLL Pdf Reader holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

HLL Pdf Reader ships an update every 9 months, Memo Search every 23 months. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | HLL Pdf Reader | Memo Search |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hll-pdf-reader/id1083359852/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/memo-search/id1191494887/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 23 months |
| Monetization | **Free** | Paid |
| Size | 15 MB | 3 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hades lade lam](https://appshunter.io/developer/1066160322) | [俊 姜](https://appshunter.io/developer/974809005) |

## 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


### Memo Search

[App page](https://appshunter.io/ios/app/memo-search/id1191494887)

Quickly locate any word within large files using a powerful search function. Customize your typing experience with dual keyboards, multiple fonts, and adjustable font sizes. Manage your files with comprehensive tools like saving, opening, and deleting.

**Highlights:** Instant text search in files, Dual keyboards for local languages, 9 font options with unlimited size, Full file management (new, save, open, delete), Word count functionality, Support for 50,000+ Unicode symbols

**Features:** macOS Compatibility

**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 Memo Search free?

Memo Search costs $1.99, with no in-app purchases.

### Which has better reviews, HLL Pdf Reader or Memo Search?

HLL Pdf Reader is rated higher. HLL Pdf Reader averages 5.0 out of 5 from 1 ratings, while Memo Search averages 4.5 from 2 ratings.

### Do HLL Pdf Reader or Memo Search have ads?

Neither HLL Pdf Reader nor Memo Search shows ads.

### Which is updated more often, HLL Pdf Reader or Memo Search?

HLL Pdf Reader ships an update every 9 months, and Memo Search every 23 months. Most recently, HLL Pdf Reader was updated on October 2, 2026 and Memo Search on October 13, 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.*