# Parallel Books vs ES Player

The clearest difference is update cadence: Parallel Books at every 3 months against ES Player's every 8 months. ES Player's advantage is iOS requirement (9.3 vs 15.6). 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.

Parallel Books ships an update every 3 months, ES Player every 8 months. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Parallel Books | ES Player |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free | — |
| Size | 2 MB | 33 MB |
| Requires iOS | 15.6 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [High Tea IT Limited](https://appshunter.io/developer/1045596663) | [Meow Sarl](https://appshunter.io/developer/1478884084) |

## 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


### ES Player

[App page](https://appshunter.io/ios/app/es-player/id1523448348)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Parallel Books free?

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

### Is ES Player free?

ES Player is free to download, with no in-app purchases.

### Do Parallel Books or ES Player have ads?

Neither Parallel Books nor ES Player shows ads.

### Which is updated more often, Parallel Books or ES Player?

Parallel Books ships an update every 3 months, and ES Player every 8 months. Most recently, Parallel Books was updated on October 9, 2026 and ES Player on October 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.*