# SAYGO4.0 vs 어스플러스

The clearest difference is review sentiment: 어스플러스 at 70% against SAYGO4.0's 24%. 어스플러스 also leads on update cadence (fortnightly vs every 2 months). SAYGO4.0's advantage is in-app purchases (none vs 5). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 어스플러스 sells 5 one-off in-app purchases. SAYGO4.0 asks for nothing beyond the download.

SAYGO4.0 ships an update every 2 months, 어스플러스 fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SAYGO4.0 | 어스플러스 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (7 ratings)](https://appshunter.io/ios/app/id6448978924/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 24.1% of reviews | **70.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 93 MB |
| Requires iOS | **14.5** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAYPENELECTRONICS Co., Ltd.](https://appshunter.io/developer/1271991131) | [US Alliance Co., Ltd.](https://appshunter.io/developer/976531809) |

## What reviewers say

### SAYGO4.0

[App page](https://appshunter.io/ios/app/saygo40/id1271991132)

This app allows users to stream educational video content and audio from Saypen devices without downloads. It offers a "Ten Ten Education System" for enhanced learning efficiency and focus. The app supports a simple three-step process for easy access to learning materials anytime, anywhere.

**Highlights:** Stream video and audio content, No download required, Ten Ten Education System, Easy three-step access, Home-schooling support, Bluetooth connectivity with Saypen

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

**In-app purchases:** none


### 어스플러스

[App page](https://appshunter.io/ios/app/id6448978924)

This app offers practical investment education for individual investors. Access content from financial experts to develop a sound investment philosophy and gain valuable insights.

**Highlights:** Practical investment education, Content from financial experts, Investment insights, Develop investment philosophy, For individual investors

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1,000애셋 | $0.49 | one-time |
| 3000애셋 | $1.99 | one-time |
| 5000애셋 | $3.99 | one-time |
| 10000애셋 | $6.99 | one-time |
| 55000애셋 | $34.99 | one-time |


## Frequently asked questions

### Is SAYGO4.0 free?

SAYGO4.0 is free to download, with no in-app purchases.

### Is 어스플러스 free?

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

### Do SAYGO4.0 or 어스플러스 have ads?

Neither SAYGO4.0 nor 어스플러스 shows ads.

### Which is updated more often, SAYGO4.0 or 어스플러스?

SAYGO4.0 ships an update every 2 months, and 어스플러스 fortnightly. Most recently, SAYGO4.0 was updated on October 24, 2026 and 어스플러스 on October 25, 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.*