# Riji vs Attention Flow

The clearest difference is in-app purchases: Attention Flow at none against Riji's 3. Riji's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Riji sells 3 in-app purchases, starting at $4.99 per month. Attention Flow asks for nothing beyond the download.

Riji ships an update weekly, Attention Flow every 2 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | Riji | Attention Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 333 MB | 8 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [大连微行科技有限公司](https://appshunter.io/developer/1890786773) | [可心 周](https://appshunter.io/developer/1868083044) |

## What reviewers say

### Riji

[App page](https://appshunter.io/ios/app/riji-focus-and-study-together/id6761673348)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 日集 Pro · 月度 | $4.99 | per month |
| 日集 Pro · 年度 | $19.99 | per year |
| 日集 Pro · 永久 | $26.99 | one-time |


### Attention Flow

[App page](https://appshunter.io/ios/app/attention-flow/id6775757600)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Riji free?

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

### Is Attention Flow free?

Attention Flow is free to download, with no in-app purchases.

### Do Riji or Attention Flow have ads?

Neither Riji nor Attention Flow shows ads.

### Which is updated more often, Riji or Attention Flow?

Riji ships an update weekly, and Attention Flow every 2 weeks. Most recently, Riji was updated on November 5, 2026 and Attention Flow on November 5, 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.*