# Parallel Books vs Deutscher Einbürgerungstest 25

The clearest difference is review sentiment: Parallel Books at 40% against Deutscher Einbürgerungstest 25's 0%. Deutscher Einbürgerungstest 25's advantage is update cadence (every 5 days vs every 3 months) and iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model 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, Deutscher Einbürgerungstest 25 every 5 days. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Parallel Books | Deutscher Einbürgerungstest 25 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/parallel-books/id1045596664/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 2 MB | 130 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [High Tea IT Limited](https://appshunter.io/developer/1045596663) | [Hatime ENHAS](https://appshunter.io/developer/1689343069) |

## 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


### Deutscher Einbürgerungstest 25

[App page](https://appshunter.io/ios/app/deutscher-einburgerungstest-25/id6479374080)

Prepare for the German naturalization test with this app. Learn all official questions, practice by state and topic, and track your progress. Study anytime, anywhere, even offline.

**Highlights:** Learn all official questions, Practice by state and topic, Study modes: practice, learn, exam, Track progress, Offline learning, Multiple language support

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Parallel Books free?

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

### Is Deutscher Einbürgerungstest 25 free?

Deutscher Einbürgerungstest 25 is free to download, with no in-app purchases.

### Do Parallel Books or Deutscher Einbürgerungstest 25 have ads?

Neither Parallel Books nor Deutscher Einbürgerungstest 25 shows ads.

### Which is updated more often, Parallel Books or Deutscher Einbürgerungstest 25?

Parallel Books ships an update every 3 months, and Deutscher Einbürgerungstest 25 every 5 days. Most recently, Parallel Books was updated on November 2, 2026 and Deutscher Einbürgerungstest 25 on November 4, 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.*