# Haihaisoft Reader vs Boomerang One

The clearest difference is review sentiment: Boomerang One at 83% against Haihaisoft Reader's 0%. Boomerang One also leads on rating (3.7 vs 1.2) and update cadence (monthly vs every 5 months). Haihaisoft Reader's advantage is iOS requirement (6.1 vs 16.0). On price, ratings volume, ads 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.

Boomerang One holds the better App Store score, 3.7 against 1.2. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 0% of Haihaisoft Reader's written reviews are positive against 83% of Boomerang One's.

Haihaisoft Reader ships an update every 5 months, Boomerang One monthly. Both last shipped on November 1, 2026.

## The numbers

| Metric | Haihaisoft Reader | Boomerang One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.2 (5 ratings)](https://appshunter.io/ios/app/haihaisoft-reader/id437433430/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/boomerang-one-hand-keyboard/id982869043/reviews)** |
| Number of ratings | **5** | 3 |
| Positive reviews | 0.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | Free |
| Size | 21 MB | 10 MB |
| Requires iOS | **6.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [海波 师](https://appshunter.io/developer/437433433) | [RA LABS LLC](https://appshunter.io/developer/982869042) |

## What reviewers say

### Haihaisoft Reader

[App page](https://appshunter.io/ios/app/haihaisoft-reader/id437433430)

A free PDF reader for iOS devices that offers fast launch speeds. It can also open PDF documents protected by DRM-X 3.0. Requires iOS 6 or later.

**Highlights:** Free PDF document reader, Fast launch speed, DRM-X 3.0 protected PDF support, iOS compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Boomerang One

[App page](https://appshunter.io/ios/app/boomerang-one-hand-keyboard/id982869043)

This keyboard app features a unique boomerang layout designed for one-handed typing, making it easier to use your phone with a single thumb. It aims to mimic a standard keyboard while freeing up your other hand.

**Highlights:** One-handed typing layout, Boomerang-inspired design, Mimics regular keyboard layout, Frees up one hand, Designed for large screens

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

**In-app purchases:** none


## Frequently asked questions

### Is Haihaisoft Reader free?

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

### Is Boomerang One free?

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

### Which has better reviews, Haihaisoft Reader or Boomerang One?

Boomerang One is rated higher. Haihaisoft Reader averages 1.2 out of 5 from 5 ratings, while Boomerang One averages 3.7 from 3 ratings.

### Do Haihaisoft Reader or Boomerang One have ads?

Neither Haihaisoft Reader nor Boomerang One shows ads.

### Which is updated more often, Haihaisoft Reader or Boomerang One?

Haihaisoft Reader ships an update every 5 months, and Boomerang One monthly. Most recently, Haihaisoft Reader was updated on November 1, 2026 and Boomerang One on November 1, 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.*