# LingoUnion — One Sentence, 20 Languages

> One Sentence, 20 Languages (iPhone/iPad app by Hongyu Zhang.)

- Source: https://appshunter.io/ios/app/lingounion/id6800436072 (this page in markdown: same URL + `.md`)
- Developer: [Hongyu Zhang](https://appshunter.io/developer/6797957060)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 18.0 · 5 MB
- Languages: American English, Arabic, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean and 10 more
- Released: 2026-08-24
- Data updated: 2026-10-02

## What is LingoUnion?

LingoUnion helps you learn sentences you actually need—one at a time.

Choose your language pair from 20 supported languages:
Arabic, Dutch, English (United States), French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese (Portugal), Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese (Taiwan), Turkish, Ukrainian, and Vietnamese.

HOW IT WORKS
• Enter a short sentence in your source language.
• With your consent, LingoUnion uses AI to create a translation and training audio in your chosen target language.
• If you decline or withdraw AI consent, supported iPhones can use Apple's on-device translation and an installed enhanced or premium system voice instead.
• Listen, speak, and write until the sentence becomes familiar.
• Return to focused reviews before adding another new sentence.

VOICE CHOICE
For AI audio, choose from Alloy, Ash, Ballad, Coral, Echo, Sage, Shimmer, Verse, Marin, or Cedar. Marin is selected by default. On-device fallback uses an installed Apple system voice for the target language.

DESIGNED FOR FOCUS
• One new sentence per day.
• A review-first daily schedule.
• Up to 300 Unicode characters per sentence.
• Saved sentences and progress stay organized on your iPhone.
• Interface languages cover all 20 supported learning languages.

PRIVACY
AI content is sent through the LingoUnion gateway to OpenAI only after you agree to AI data processing. LingoUnion does not persist sentence text or audio on its gateway. This release uses OpenAI's standard API data-retention controls, not Zero Data Retention. API data is not used to train OpenAI models unless the organization opts in; LingoUnion keeps sharing disabled. OpenAI abuse-monitoring logs may retain content for up to 30 days, with limited legal or safety exceptions. Speaking-practice audio is handled by Apple's speech recognition and is not sent to OpenAI or the LingoUnion gateway.

A valid annual subscription is required to learn. Availability of on-device translation, speech recognition, handwriting input, enhanced voices, and other system resources depends on your iPhone, iOS version, and selected language.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| LingoUnion Annual | $24.99 | per year |


## Is LingoUnion safe?

Not enough ratings yet to assess LingoUnion.

## Is LingoUnion legit?

LingoUnion has limited verification signals. The AppsHunter Legitimacy Score for LingoUnion is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 2.0.1 — 2026-09-24

This update fixes a review-queue issue that could prevent starting a new sentence after all available reviews were completed. Learning screens now stay focused on the current task, with the full history and settings available through View. If you decline or withdraw AI consent, supported iPhones can now use Apple's on-device translation and an installed enhanced or premium system voice. Legal and website links have also been restored.

### 2.0 — 2026-09-14

Version 2.0 introduces AI-powered learning in 20 target languages. Choose any supported source and target language, select one of 10 voices, and generate a translation and training audio for each new sentence. We also added explicit AI data-processing controls, strengthened content-service authentication and privacy declarations, and fixed an incorrect system-time warning that could appear even when automatic date and time were unchanged.

### 1.0.0 — 2026-08-24

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-02.*