# SAYGO4.0 vs Puruni 푸르니

The clearest difference is review sentiment: Puruni 푸르니 at 34% against SAYGO4.0's 24%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | SAYGO4.0 | Puruni 푸르니 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 24.1% of reviews | **34.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 1 MB | 25 MB |
| Requires iOS | 14.5 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [SAYPENELECTRONICS Co., Ltd.](https://appshunter.io/developer/1271991131) | [Puruni](https://appshunter.io/developer/606681547) |

## 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


### Puruni 푸르니

[App page](https://appshunter.io/ios/app/puruni/id1457411423)

This app facilitates communication and information access between parents and their child's daycare. It requires parent authentication to ensure secure access to child-related updates and services.

**Highlights:** Parent-teacher communication, Information access, Parent authentication, Childcare updates, Secure access

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

**In-app purchases:** none


## Frequently asked questions

### Is SAYGO4.0 free?

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

### Is Puruni 푸르니 free?

Puruni 푸르니 is free to download, with no in-app purchases.

### Do SAYGO4.0 or Puruni 푸르니 have ads?

Neither SAYGO4.0 nor Puruni 푸르니 shows ads.

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

SAYGO4.0 ships an update every 2 months, and Puruni 푸르니 every 2 months. Most recently, SAYGO4.0 was updated on November 11, 2026 and Puruni 푸르니 on November 2, 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.*