# 知了，RSS智能聚合阅读 vs 往日之事

The clearest difference is price: 知了，RSS智能聚合阅读 at Free against 往日之事's $0.29. 知了，RSS智能聚合阅读 also leads on update cadence (every 2 weeks vs every 9 months). 往日之事's advantage is in-app purchases (none vs 4) and iOS requirement (14.0 vs 16). On ads and device support there is nothing between them.

知了，RSS智能聚合阅读 is free to download; 往日之事 costs $0.29 up front. 知了，RSS智能聚合阅读 sells 4 in-app purchases, starting at $2.99 per month. 往日之事 asks for nothing beyond the download.

知了，RSS智能聚合阅读 ships an update every 2 weeks, 往日之事 every 9 months. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 知了，RSS智能聚合阅读 | 往日之事 |
| --- | --- | --- |
| Price | **Free** | $0.29 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rss/id1525056652/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 9 months |
| Monetization | **Freemium** | Paid |
| Size | 34 MB | 5 MB |
| Requires iOS | 16 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [羽浩 邓](https://appshunter.io/developer/1523986828) | [伟 曹](https://appshunter.io/developer/881060499) |

## What reviewers say

### 知了，RSS智能聚合阅读

[App page](https://appshunter.io/ios/app/rss/id1525056652)

This app intelligently aggregates and filters information from various sources, providing timely notifications for weather, new movies, book updates, and popular online content. It allows for customizable alerts based on keywords and supports dark mode.

**Highlights:** Intelligent information aggregation, Customizable filtering and alerts, Weather and movie release notifications, Book and online content update alerts, Supports dark mode, Customizable support for non-RSS sites

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月会员 | $2.99 | per month |
| 连续包季会员 | $2.99 | per 3 months |
| 连续包半年会员 | $4.99 | per 6 months |
| 连续包年会员 | $9.99 | per year |


### 往日之事

[App page](https://appshunter.io/ios/app/id1564610369)

Explore significant historical events that occurred on any given day. Discover world-changing moments and see if any important dates align with your own birthday.

**Highlights:** Daily historical events, World-changing historical moments, Event significance, Birthday date correlation

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

**In-app purchases:** none


## Frequently asked questions

### Is 知了，RSS智能聚合阅读 free?

知了，RSS智能聚合阅读 is free to download, with in-app purchases available.

### Is 往日之事 free?

往日之事 costs $0.29, with no in-app purchases.

### Do 知了，RSS智能聚合阅读 or 往日之事 have ads?

Neither 知了，RSS智能聚合阅读 nor 往日之事 shows ads.

### Which is updated more often, 知了，RSS智能聚合阅读 or 往日之事?

知了，RSS智能聚合阅读 ships an update every 2 weeks, and 往日之事 every 9 months. Most recently, 知了，RSS智能聚合阅读 was updated on October 17, 2026 and 往日之事 on October 24, 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.*