# RSS Reader vs Number Lookup ：Number Book

The clearest difference is update cadence: Number Lookup ：Number Book at every 10 days against RSS Reader's every 34 months. Number Lookup ：Number Book also leads on iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. RSS Reader sells 2 in-app purchases, starting at $1.49 per month and Number Lookup ：Number Book sells 3 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

RSS Reader ships an update every 34 months, Number Lookup ：Number Book every 10 days. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | RSS Reader | Number Lookup ：Number Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (97 ratings)](https://appshunter.io/ios/app/number-lookup-number-book/id6458691883/reviews)** |
| Number of ratings | — | **97** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 10 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 2 MB | 47 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杏娣 吴](https://appshunter.io/developer/1275821426) | [韵潼 杨](https://appshunter.io/developer/1683470919) |

## What reviewers say

### RSS Reader

[App page](https://appshunter.io/ios/app/rss-reader-widget-rss-reader/id6457204274)

Stay updated with your favorite news and blogs directly from your home screen. This app allows you to add RSS feeds and view them through customizable widgets, with options to archive articles and use a dark mode.

**Highlights:** Home screen RSS widgets, Add and manage RSS feeds, Link previews, OPML/CSV import/export, Archive favorite articles, Dark mode

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RSS Reader Pro | $1.49 | per month |
| RSS Reader Pro | $9.99 | per year |


### Number Lookup ：Number Book

[App page](https://appshunter.io/ios/app/number-lookup-number-book/id6458691883)

Identify unknown callers and block spam with a comprehensive global number database. This app offers anonymous searches, effortless contact management, and instant search history saving. Stay informed and protected from scams with a user-friendly interface.

**Highlights:** Comprehensive number lookup, Spam call detection, Anonymous searches, Add to contacts, No registration required, Search history saving

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium member weekly vip | $8.99 | per 7 days |
| Premium member monthly vip | $14.99 | per month |
| Premium member yearly vip | $39.99 | per year |


## Frequently asked questions

### Is RSS Reader free?

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

### Is Number Lookup ：Number Book free?

Number Lookup ：Number Book is free to download, with in-app purchases available.

### Do RSS Reader or Number Lookup ：Number Book have ads?

Neither RSS Reader nor Number Lookup ：Number Book shows ads.

### Which is updated more often, RSS Reader or Number Lookup ：Number Book?

RSS Reader ships an update every 34 months, and Number Lookup ：Number Book every 10 days. Most recently, RSS Reader was updated on October 27, 2026 and Number Lookup ：Number Book on November 3, 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.*