# Integrate Reading & Writing Basic 1 vs 333 Sentences

The clearest difference is in-app purchases: Integrate Reading & Writing Basic 1 at none against 333 Sentences's 3. Integrate Reading & Writing Basic 1 also leads on iOS requirement (6.0 vs 15.0). 333 Sentences's advantage is update cadence (weekly vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. 333 Sentences sells 3 one-off in-app purchases. Integrate Reading & Writing Basic 1 asks for nothing beyond the download.

Integrate Reading & Writing Basic 1 ships an update every 6 weeks, 333 Sentences weekly. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Integrate Reading & Writing Basic 1 | 333 Sentences |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 294 MB | 30 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Woongjin Compass, Co., Ltd.](https://appshunter.io/developer/393294989) | [Sifr Studio Ventures LLC](https://appshunter.io/developer/6797028601) |

## What reviewers say

### Integrate Reading & Writing Basic 1

[App page](https://appshunter.io/ios/app/integrate-reading-and-writing-basic-1/id1249139772)

This educational app makes learning English enjoyable for students through interactive games and avatar customization. It allows easy sharing of progress with teachers via email, eliminating the need for complex learning management systems.

**Highlights:** Interactive English learning games, Avatar customization and point system, Email progress reports to teachers, Cross-platform PC and mobile use, Motivating learning activities

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

**In-app purchases:** none


### 333 Sentences

[App page](https://appshunter.io/ios/app/333-sentences-speak-english/id6797028599)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription — 1 week | $5.00 | one-time |
| Subscription — 3 months | $18.00 | one-time |
| Subscription — 1 year | $48.00 | one-time |


## Frequently asked questions

### Is Integrate Reading & Writing Basic 1 free?

Integrate Reading & Writing Basic 1 is free to download, with no in-app purchases.

### Is 333 Sentences free?

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

### Do Integrate Reading & Writing Basic 1 or 333 Sentences have ads?

Neither Integrate Reading & Writing Basic 1 nor 333 Sentences shows ads.

### Which is updated more often, Integrate Reading & Writing Basic 1 or 333 Sentences?

Integrate Reading & Writing Basic 1 ships an update every 6 weeks, and 333 Sentences weekly. Most recently, Integrate Reading & Writing Basic 1 was updated on November 2, 2026 and 333 Sentences on November 6, 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.*