# Riri. 公式アプリ vs Tea Knowledge and Info

The clearest difference is in-app purchases: Riri. 公式アプリ at none against Tea Knowledge and Info's 1. Riri. 公式アプリ also leads on iOS requirement (12.0 vs 15.0). Tea Knowledge and Info's advantage is update cadence (every 10 days vs every 43 months). On price, ads and device support there is nothing between them.

Both are free to download. Tea Knowledge and Info sells 1 one-off in-app purchase. Riri. 公式アプリ asks for nothing beyond the download.

Riri. 公式アプリ ships an update every 43 months, Tea Knowledge and Info every 10 days. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Riri. 公式アプリ | Tea Knowledge and Info |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 10 days** |
| Size | 13 MB | 57 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUKIKO SHONO](https://appshunter.io/developer/1606699680) | [Man Hung Sun](https://appshunter.io/developer/1471605573) |

## What reviewers say

### Riri. 公式アプリ

[App page](https://appshunter.io/ios/app/riri/id1606699678)

**In-app purchases:** none


### Tea Knowledge and Info

[App page](https://appshunter.io/ios/app/tea-knowledge-and-info/id1630711538)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| upgrade | $0.99 | one-time |


## Frequently asked questions

### Is Riri. 公式アプリ free?

Riri. 公式アプリ is free to download, with no in-app purchases.

### Is Tea Knowledge and Info free?

Tea Knowledge and Info is free to download, with in-app purchases available.

### Do Riri. 公式アプリ or Tea Knowledge and Info have ads?

Neither Riri. 公式アプリ nor Tea Knowledge and Info shows ads.

### Which is updated more often, Riri. 公式アプリ or Tea Knowledge and Info?

Riri. 公式アプリ ships an update every 43 months, and Tea Knowledge and Info every 10 days. Most recently, Riri. 公式アプリ was updated on October 9, 2026 and Tea Knowledge and Info on October 4, 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.*