# Send to Kindle by KTool vs RSSum

The clearest difference is in-app purchases: RSSum at none against Send to Kindle by KTool's 8. RSSum also leads on update cadence (every 5 days vs monthly). Send to Kindle by KTool's advantage is review sentiment (25% vs 0%) and iOS requirement (16.4 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Send to Kindle by KTool sells 8 in-app purchases, starting at $2.99 per month. RSSum asks for nothing beyond the download.

Send to Kindle by KTool ships an update monthly, RSSum every 5 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Send to Kindle by KTool | RSSum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/rssum/id6743862589/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Freemium | **Free** |
| Size | 47 MB | 47 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Podzim LLC](https://appshunter.io/developer/1620426801) | [Joao Valente](https://appshunter.io/developer/1689831331) |

## What reviewers say

### Send to Kindle by KTool

[App page](https://appshunter.io/ios/app/send-to-kindle-by-ktool/id1620426799)

Easily send web articles, newsletters, and discussions to your Kindle device or app for offline reading. This tool cleans up content, preserves images, and offers features like creating custom magazines and managing subscriptions.

**Highlights:** Send articles via share sheet, Read Wikipedia and Hacker News on Kindle, Subscribe to newsletters directly to Kindle, Create custom daily/weekly magazines, Offline reading on Kindle devices and app, Guided Kindle setup

**Features:** iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Articles | $2.99 | per month |
| KTool Premium Weekly | $4.99 | per 7 days |
| Unlimited Articles | $5.99 | per month |
| Unlimited Access | $9.99 | per month |
| iOS Unlimited Articles | $29.99 | per year |
| KTool Premium Yearly | $49.99 | per year |
| Unlimited articles | $59.99 | per year |
| Unlimited Access | $99.99 | per year |


### RSSum

[App page](https://appshunter.io/ios/app/rssum/id6743862589)

A streamlined RSS reader designed for efficient content consumption. Stay updated with your favorite news sources and blogs in a clean, ad-free interface. Easily manage your subscriptions and discover new content.

**Highlights:** RSS feed aggregation, Ad-free reading experience, Subscription management, Content discovery, Clean user interface

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Send to Kindle by KTool free?

Send to Kindle by KTool is free to download, with in-app purchases available.

### Is RSSum free?

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

### Do Send to Kindle by KTool or RSSum have ads?

Neither Send to Kindle by KTool nor RSSum shows ads.

### Which is updated more often, Send to Kindle by KTool or RSSum?

Send to Kindle by KTool ships an update monthly, and RSSum every 5 days. Most recently, Send to Kindle by KTool was updated on November 3, 2026 and RSSum on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*