# RFR901 APP vs KaView

The clearest difference is update cadence: KaView at every 10 days against RFR901 APP's every 2 months. RFR901 APP's advantage is iOS requirement (11.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RFR901 APP ships an update every 2 months, KaView every 10 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RFR901 APP | KaView |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kaview/id6762573059/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 5 MB | 31 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bluebirdcorp](https://appshunter.io/developer/1290195462) | [Anthony VON BIELER](https://appshunter.io/developer/1894721720) |

## What reviewers say

### RFR901 APP

[App page](https://appshunter.io/ios/app/rfr901-app/id6450923548)

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

**In-app purchases:** none


### KaView

[App page](https://appshunter.io/ios/app/kaview/id6762573059)

Explore and understand software code like reading a book. This app offers a guided learning experience with an AI tutor that explains code snippets directly on the page. It allows for offline access to courses and public repositories, and even enables light editing and committing changes to GitHub.

**Highlights:** Code reading with syntax highlighting, AI tutor for code explanation, Offline course access, GitHub integration for editing and committing, Repository browsing as chapters, Multi-language support

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

**In-app purchases:** none


## Frequently asked questions

### Is RFR901 APP free?

RFR901 APP is free to download, with no in-app purchases.

### Is KaView free?

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

### Do RFR901 APP or KaView have ads?

Neither RFR901 APP nor KaView shows ads.

### Which is updated more often, RFR901 APP or KaView?

RFR901 APP ships an update every 2 months, and KaView every 10 days. Most recently, RFR901 APP was updated on October 27, 2026 and KaView 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.*