# Lingua Sentence Builder vs TuOne

The clearest difference is in-app purchases: Lingua Sentence Builder at none against TuOne's 10. Lingua Sentence Builder also leads on update cadence (every 2 days vs every 4 days) and iOS requirement (13.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. TuOne sells 10 one-off in-app purchases. Lingua Sentence Builder asks for nothing beyond the download.

Lingua Sentence Builder ships an update every 2 days, TuOne every 4 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Lingua Sentence Builder | TuOne |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lingua-sentence-builder/id6756288657/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 511 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seungtae Kim](https://appshunter.io/developer/558266308) | [向煊 龙](https://appshunter.io/developer/1889719996) |

## What reviewers say

### Lingua Sentence Builder

[App page](https://appshunter.io/ios/app/lingua-sentence-builder/id6756288657)

Master grammar and expand vocabulary through interactive sentence puzzles. This app offers a gamified approach to language learning with native audio, smart hints, and detailed explanations. Explore unique dialects and track your progress with a mistake history feature.

**Highlights:** Interactive sentence puzzles, Native audio pronunciation, Smart hints and instant feedback, Detailed grammar explanations, Mistake history tracking, Support for 10 languages, Special dialect modes

**Features:** macOS Compatibility

**In-app purchases:** none


### TuOne

[App page](https://appshunter.io/ios/app/tuone/id6761455411)

Learn new facts and historical details through quick, two-choice questions. Get instant feedback and track your progress as you expand your knowledge base. Ideal for learning on the go without lengthy study sessions.

**Highlights:** Two-choice questions, Instant answers and explanations, Chinese history content, General knowledge topics, Progress tracking, Timelines and maps, Customizable question sets

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 宋·青黛 | $1.99 | one-time |
| 五代十国·绛灰 | $1.99 | one-time |
| 清·青乳 | $1.99 | one-time |
| 文学·金褐蓝 | $1.99 | one-time |
| 明·赤正 | $1.99 | one-time |
| 元·白藏 | $1.99 | one-time |
| 民国·朱蓝 | $1.99 | one-time |
| 谜趣·黛金 | $1.99 | one-time |
| 三国·朱砂黑 | $1.99 | one-time |
| 360行·钢琥 | $1.99 | one-time |


## Frequently asked questions

### Is Lingua Sentence Builder free?

Lingua Sentence Builder is free to download, with no in-app purchases.

### Is TuOne free?

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

### Do Lingua Sentence Builder or TuOne have ads?

Neither Lingua Sentence Builder nor TuOne shows ads.

### Which is updated more often, Lingua Sentence Builder or TuOne?

Lingua Sentence Builder ships an update every 2 days, and TuOne every 4 days. Most recently, Lingua Sentence Builder was updated on October 28, 2026 and TuOne on October 28, 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.*