# Chai's Play(차이의 놀이) vs SAYGO4.0

The clearest difference is review sentiment: Chai's Play(차이의 놀이) at 97% against SAYGO4.0's 24%. Chai's Play(차이의 놀이) also leads on update cadence (monthly vs every 2 months) and iOS requirement (9.0 vs 14.5). SAYGO4.0's advantage is in-app purchases (none vs 10). On price, ads and device support there is nothing between them.

Both are free to download. Chai's Play(차이의 놀이) sells 10 one-off in-app purchases. SAYGO4.0 asks for nothing beyond the download.

Chai's Play(차이의 놀이) ships an update monthly, SAYGO4.0 every 2 months. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Chai's Play(차이의 놀이) | SAYGO4.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/chais-play/id1134836561/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | **97.5% of reviews** | 24.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 1 MB |
| Requires iOS | **9.0** | 14.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Havit Inc.](https://appshunter.io/developer/1134836560) | [SAYPENELECTRONICS Co., Ltd.](https://appshunter.io/developer/1271991131) |

## What reviewers say

### Chai's Play(차이의 놀이)

[App page](https://appshunter.io/ios/app/chais-play/id1134836561)

This parenting app offers daily tips and play ideas for preschoolers aged 0-6. It provides personalized content based on your child's age and developmental stage, curated by education experts. It also includes information for expectant parents.

**Highlights:** Personalized daily updates by child's age, Play and parenting tips, Content for expectant parents, Expert-curated educational activities, Pregnancy and childbirth information

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 44 Koin | $0.99 | one-time |
| 22 Koin | $1.99 | one-time |
| 97 Koin | $1.99 | one-time |
| 140 Koin | $2.99 | one-time |
| 195 Koin | $3.99 | one-time |
| 55 Koin | $4.99 | one-time |
| 310 Koin | $5.99 | one-time |
| 90 Koin | $6.99 | one-time |
| 120 Koin | $8.99 | one-time |
| 380 Koin | $23.99 | one-time |


### 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


## Frequently asked questions

### Is Chai's Play(차이의 놀이) free?

Chai's Play(차이의 놀이) is free to download, with in-app purchases available.

### Is SAYGO4.0 free?

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

### Do Chai's Play(차이의 놀이) or SAYGO4.0 have ads?

Neither Chai's Play(차이의 놀이) nor SAYGO4.0 shows ads.

### Which is updated more often, Chai's Play(차이의 놀이) or SAYGO4.0?

Chai's Play(차이의 놀이) ships an update monthly, and SAYGO4.0 every 2 months. Most recently, Chai's Play(차이의 놀이) was updated on September 25, 2026 and SAYGO4.0 on September 21, 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.*