# Parallel Books vs ForeignReader

The clearest difference is in-app purchases: Parallel Books at none against ForeignReader's 1. Parallel Books also leads on iOS requirement (15.6 vs 26.2). ForeignReader's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. ForeignReader sells 1 in-app purchase, starting at $2.99 per month. Parallel Books asks for nothing beyond the download.

Parallel Books ships an update every 3 months, ForeignReader every 2 weeks. The most recent releases landed on October 9, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Parallel Books | ForeignReader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 45 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [High Tea IT Limited](https://appshunter.io/developer/1045596663) | [Nikolai Pronichev](https://appshunter.io/developer/1891674377) |

## What reviewers say

### Parallel Books

[App page](https://appshunter.io/ios/app/parallel-books/id1045596664)

Learn a new language by reading books with side-by-side translations. This app keeps translations synchronized as you read, allowing for full immersion. Easily switch between display modes and add notes for a personalized learning experience.

**Highlights:** Dual language display, Synchronized translations, Adjustable display modes, Searchable notes, Day/night themes, Highlighting

**Features:** macOS Compatibility

**In-app purchases:** none


### ForeignReader

[App page](https://appshunter.io/ios/app/foreignreader/id6761826459)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ForeignReader PRO | $2.99 | per month |


## Frequently asked questions

### Is Parallel Books free?

Parallel Books is free to download, with no in-app purchases.

### Is ForeignReader free?

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

### Do Parallel Books or ForeignReader have ads?

Neither Parallel Books nor ForeignReader shows ads.

### Which is updated more often, Parallel Books or ForeignReader?

Parallel Books ships an update every 3 months, and ForeignReader every 2 weeks. Most recently, Parallel Books was updated on October 9, 2026 and ForeignReader on September 23, 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.*