# DualText Reader vs BookLight

The clearest difference is in-app purchases: DualText Reader at none against BookLight's 3. BookLight's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. BookLight sells 3 in-app purchases, starting at $0.99 per month. DualText Reader asks for nothing beyond the download.

DualText Reader ships an update every 2 weeks, BookLight every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DualText Reader | BookLight |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 94 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Masatomo Fukuda](https://appshunter.io/developer/1599921920) | [Jungjun Lee](https://appshunter.io/developer/1485806455) |

## What reviewers say

### DualText Reader

[App page](https://appshunter.io/ios/app/dualtext-reader/id6754987190)

**Features:** macOS Compatibility

**In-app purchases:** none


### BookLight

[App page](https://appshunter.io/ios/app/booklight-epub-translator/id6759386987)

This app helps language learners build vocabulary by translating words with a single tap while reading EPUB, PDF, or TXT files. It automatically saves new words and uses spaced repetition flashcards to aid memorization, eliminating the need for manual flashcard creation or app switching.

**Highlights:** Tap to translate words instantly, Automatic vocabulary saving, Spaced-repetition flashcards, Import EPUB, PDF, TXT files, Offline reading support, Customizable reading themes and fonts, Pronunciation audio

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $0.99 | per month |
| Yearly Plan | $7.99 | per year |
| Lifetime Plan | $9.99 | one-time |


## Frequently asked questions

### Is DualText Reader free?

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

### Is BookLight free?

BookLight is free to download, with in-app purchases available.

### Do DualText Reader or BookLight have ads?

DualText Reader shows ads; BookLight does not.

### Which is updated more often, DualText Reader or BookLight?

DualText Reader ships an update every 2 weeks, and BookLight every 4 days. Most recently, DualText Reader was updated on October 28, 2026 and BookLight on October 31, 2026.

---

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